Provided is an ophthalmological device which makes it possible to objectively know the positional relationship between an eye to be examined and an acquisition optical system even when the face of a subject is fixed to a head section. The ophthalmological device (10) is provided with: a pair of acquisition optical systems (measurement optical systems 20) for the acquisition of eye information about both eyes E to be examined; an optical system changing mechanism (measurement head driving section 15) which changes at least one of the position and the direction of the pair of acquisition optical systems (measurement optical systems 20); and a control section (27) which generates a positional relationship image Ip that shows the positional relationship of the pair of acquisition optical systems (measurement optical systems 20) relative to the pair of eyes E to be examined on the basis of optical posture information showing the position or direction of the pair of acquisition optical systems (measurement optical systems 20) which has been preset by the optical system changing mechanism (measurement head driving section 15) and eye positional information showing the position of the eyes E to be examined, and then displays the positional relationship image Ip on a display section (34).
A61B 3/08 - Subjective types, i.e. testing apparatus requiring the active assistance of the patient for testing binocular or stereoscopic vision, e.g. strabismus
The present invention is provided with: a distance-measurement light emission unit (23) which emits distance-measurement light onto a measurement subject; a distance-measurement light reception unit (24) which has a light reception element for receiving reflected distance-measurement light from the measurement subject; a tracking-light emission unit (25) which emits tracking light onto the measurement subject on the same axis as the distance-measurement light; a tracking-light reception unit which has a tracking-light reception element for receiving reflected tracking light that is incident on the same axis as the reflected distance-measurement light; and a calculation control unit (17) which calculates the distance to the measurement subject on the basis of the light reception result of the reflected distance-measurement light on the light reception element, and which tracks the measurement subject on the basis of the light reception result of the reflected tracking light on the tracking-light reception element. The distance-measurement light reception unit and the tracking-light reception unit include a light reception prism that causes the reflected distance-measurement light and the reflected tracking light to be internally reflected multiple times, at least one chamfered portion is formed on a corner portion of said light reception prism located outside the optical path of the reflected tracking light, and the chamfered portion is subjected to an anti-reflection process.
In this rotary operation type inertial detecting device an inertial detecting unit (4) is provided inside an inner frame, the inner frame is supported in an outer frame by means of a first shaft (5), the inertial detecting unit is supported in the inner frame by means of a second shaft (7) perpendicular to the first shaft, the first shaft is provided with a first encoder (12), the second shaft is provided with a second encoder (17), the rotary operation type inertial detecting device is equipped with rotational motive forces provided on each shaft, and an arithmetic processing unit (19) for controlling the rotational motive forces on the basis of a detection result from the inertial detecting unit, and the arithmetic processing unit is configured to: associate a signal emitted by the inertial detecting unit with outputs of the first encoder and the second encoder; cause the inertial detecting unit to rotate continuously about the second shaft; calculate a horizontal angle of rotation of the inner frame and an angle of rotation of the second shaft relative to the horizontal, from a detected signal from the inertial detecting unit; cause the inner frame to perform a rotational movement through 180° at least once about the first shaft; and detect an angle of inclination relative to vertical and a horizontal angle of rotation of the outer frame.
The present invention comprises: an inner frame (3) that is provided with an inertia sensor unit (4) and is rotatably supported by an outer frame (2); a twin inertia sensor unit having two inertia detection sensors; a first encoder (12) that detects a rotation angle between the outer frame and the inner frame; and a second encoder (17) that detects a rotation angle between the inner frame and the twin inertia sensor unit. The signal emitted by the twin inertia sensor unit and the outputs of the first encoder and the second encoder are associated. The twin inertia sensor unit is continuously rotated. A horizontal rotation angle and a rotation angle with respect to the horizontal of the inner frame are calculated from a detection signal of the twin inertia sensor unit based on an angle of the second encoder. The inner frame is inversely rotated by at least 180° or by one full rotation. A horizontal rotation angle and a vertical angle with respect to the vertical of the outer frame are detected.
[Problem] To set scanning conditions appropriate for laser scanning. [Solution] A laser scanning device 200 that performs laser scanning using laser scanning light, wherein the distances from the laser scanning device 200 to target reflecting prisms 300 and 400 are acquired, and conditions for acquiring laser scanning data limited to the reflecting prisms 300 and 400 are set. At this time, the laser scanning data limited to the reflecting prisms 300 and 400 are laser scanning data in a specific angular range seen from the laser scanning device 200, and this specific angular range is set to be relatively narrow when the distance is relatively large, and set to be relatively wide when the distance is relatively small.
This ophthalmic device includes a measurement optical system, an acquisition unit, a control unit, and a calculation unit. The measurement optical system includes a focusing lens. The measurement optical system measures the wavefront aberration of an eye under examination in which an intraocular lens is to be placed, and acquires a Hartmann image. The acquisition unit acquires at least intraocular lens information representing the optical characteristics of the intraocular lens. The control unit moves the focusing lens to a position corresponding to the focal length of the intraocular lens, the focal length being determined on the basis of the intraocular lens information, and causes a Hartmann image to be acquired by the measurement optical system. The calculation unit calculates, on the basis of the Hartmann image, the refractive power of the eye under examination, using a computation process method corresponding to the intraocular lens information.
A61B 3/103 - Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions for determining refraction, e.g. refractometers, skiascopes
A61B 3/11 - Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions for measuring interpupillary distance or diameter of pupils
This measuring device comprises a distance measurement light emitting unit (23) for emitting distance measurement light (32) toward a measurement target object, a distance measurement light receiving unit (24) including a light receiving element (34) for receiving reflected distance measurement light (39) from the measurement target object, and an arithmetic control unit for controlling the distance measurement light emitting unit and for calculating a distance to the measurement target object on the basis of a light reception result of the reflected distance measurement light with respect to the light receiving element, wherein: the distance measurement light receiving unit includes a wavelength selecting unit (35) provided on an optical axis of the reflected distance measurement light; and the wavelength selecting unit includes a wavelength-selective film having a film thickness that increases in accordance with an increase in an angle of incidence of the reflected distance measurement light with respect to the wavelength selecting unit.
The present invention is provided with: a distance measurement unit (2) that emits distance measurement light (21) and receives reflected distance measurement light (22) from an object under measurement to measure distance; an optical axis deflection unit (9) that is provided on a reference optical axis of the distance measurement unit and that deflects the distance measurement light; an optical axis motor driver (8) that drives the optical axis deflection unit; an attitude detection device (6); a measurement direction detection unit (7) for detecting the direction of emission of the distance measurement light with respect to the reference optical axis; a storage unit (5); and a computation control unit (4) for performing synchronous control of the distance measurement unit, the attitude detection device, and the optical axis deflection unit. The optical axis defection unit is provided with a pair of disc prisms (17, 18) constituted from optical prisms. The computation control unit is configured to drive the optical axis deflection unit via the optical axis deflection motor driver, and scan the distance measurement light at a prescribed scan pattern as well as rotate one of the disc prisms in reverse with respect to the other disc prism so as to prevent the Coriolis force from acting.
The present invention pertains to a polygon mirror, a light transmitter, and a surveying system that facilitates automatic collimation using a surveying device. Provided is a light transmitter comprising: a light source; an axicon lens into which light emitted by the light source enters, within which the light is converted into ring light, and from which the ring light is emitted; a twisted ring polygon mirror having a surface configured as a reflective surface, said twisted ring polygon mirror being formed into a ring shape by being subjected to rotary extrusion over 360° while being twisted at a prescribed angle, and assuming the shape of an n-cornered polygon in cross-section; and a rotary drive unit for rotatably driving the twist ring polygon mirror. The axis of rotation of the twist ring polygon mirror is set along the optical axis of the axicon lens. The ring light emitted from the axicon lens impinges on the rotationally driven twist ring polygon mirror, reflects off the reflective surface, and performs a vertical scan as a fan beam spreading 360° in top view.
Provided is a light transmitter that automatically directs a light transmission opening toward a surveying instrument. Provided is a light transmitter comprising a light transmitter main body for transmitting tracking guide light, a drive unit for driving the light transmitter main body in horizontal rotation, an inertial measurement device for measuring accelerations of the light transmitter main body in three axial directions, an angle detector for detecting an angle of rotation of the light transmitter main body, a light transmitter communication unit for transmitting and receiving information, and a light transmitter control unit for performing arithmetic processing of a measured value from the inertial measurement device and of the angle detector, control of the light transmitter communication unit, control of the transmission of the tracking guide light by the light transmitter main body, and control of the rotation of the drive unit, wherein the light transmitter control unit: receives a horizontal direction angle of the surveying instrument by means of the light transmitter communication unit, and calculates, as an angle, a difference between a light transmission direction of the tracking guide light and an azimuth angle to the surveying instrument, from the measured value from the inertial measurement device and a measured value from the angle detector; and rotationally drives the drive unit such that the light transmission direction of the tracking guide light faces the surveying instrument, and transmits the tracking guide light.
According to the present invention, a height difference between measurement points is measured using a laser receiver. A leveling system (1) comprises a rotating laser device (10) for emitting a laser beam (B) horizontally at a predetermined height (H) from a measurement reference point, and a laser receiver (20) for receiving the laser beam at a measurement point, wherein the laser receiver: is provided with a first vertical light receiving tube (23), a second vertical light receiving tube (25) and a horizontal light receiving tube (24) which are arranged in an H-shape and each of which comprises light receiving units disposed at both ends of a light guide, and an arithmetic processing unit (31) connected to the light receiving units; identifies a collision position (235) of the laser beam from light reception signals of the light receiving units; detects differential distances of the collision position from a central position, and detects whether each differential distance is on a plus side or a minus side of a boundary at a central position in the length of each light guide; and measures a height difference of the measurement point relative to the measurement reference point in accordance with a combination of the plus/minus of each differential distance of the first vertical light receiving tube, the second vertical light receiving tube, and the horizontal light receiving tube.
This laser receiver measures a machine height of a surveying instrument. A surveying system (1) comprises a rotating laser device (10) for outputting a laser beam (LB) horizontally at a height (H) from a measurement reference point (RP2), a surveying instrument (30) situated at another measurement reference point (RP1), and a laser receiver (20) fixed to a front surface of the surveying instrument, wherein the laser receiver: is provided with a first vertical light receiving tube (23), a second vertical light receiving tube (25) and a horizontal light receiving tube (24), in an H-shape, each comprising light receiving units at both ends of a light guide; identifies a collision position (235) of the laser beam from light reception signals of the light receiving units; detects differential distances from a central position, and whether each differential distance is on a plus side or a minus side of a boundary at the central position; and, in accordance with a combination of the plus/minus of each differential distance, measures a machine height (h) of the surveying instrument from a height (H) of the laser beam, a central separation difference (d1) between a light receiver center (RC) of the light receiver and a machine center (MC) of the surveying instrument, and the differential distances.
The present invention detects the inclination of a laser optical receiver. This leveling system (1) comprises: a rotary laser device (10) that emits a laser beam (B) horizontally at a prescribed height (H) from a measurement reference point; and a laser optical receiver (20) that receives the laser beam. The laser optical receiver comprises: a vertical optical receiving tube (23) and a horizontal optical receiving tube (24), each including optical receiving units disposed at both end sections of a light-guiding body; and a computation processing unit (31) that is connected to the optical receiving units. The computation processing unit: identifies an impact position (235) of the laser beam on the basis of optical receiving signals from the optical receiving units; calculates which side the impact position is on, with central positions along the length of the light-guiding bodies serving as boundaries, and calculates the differential distances of the impact position from the central positions; detects a longitudinal inclination (θ) of the optical receiver on the basis of the differential distance (Dv) for the vertical optical receiving tube; and detects a lateral inclination (δ) of the optical receiver on the basis of the differential distance (Dh) for the horizontal optical receiving tube.
G01C 9/06 - Electric or photoelectric indication or reading means
G01C 15/00 - Surveying instruments or accessories not provided for in groups
14.
POINT CLOUD INFORMATION GENERATING SYSTEM, POINT CLOUD INFORMATION GENERATING SYSTEM CONTROL METHOD, AND POINT CLOUD INFORMATION GENERATING SYSTEM CONTROL PROGRAM
The objective of the present invention is to provide a point cloud information generating system, etc., capable of simply and rapidly generating point cloud information relating to a desired target object, and capable of easily and rapidly modifying the point cloud information. A point cloud information generating system 500 comprises a point cloud information generating device 1 for generating three-dimensional point cloud information relating to a target object 600, and a cross-reality (XR) generating device 100 that can be worn by a user, wherein the XR generating device comprises, at least, an imaging unit 111a for acquiring imaging information corresponding to a line of sight of the user, and a display unit 113, and, on the basis of execution instruction information relating to the target object displayed on the display unit, generates three-dimensional point cloud information relating to the target object specified using the execution instruction information by the point cloud information generating device, and displays the generated three-dimensional point cloud information relating to the target object on the display unit together with the target object.
This fundus imaging device includes two or more curved mirrors, an illumination optical system, an image sensor, and a control unit. The illumination optical system irradiates the fundus of an eye under examination with slit-shaped illumination light via the two or more curved mirrors, and illuminates the fundus while moving the illuminated region. The image sensor can be disposed at a fundus-conjugate position, which is substantially optically conjugate with the fundus, and receives return light from the eye under examination. The control unit controls at least the illumination optical system. The longitudinal direction of an image formed by the illumination light on the fundus is substantially parallel to a plane that includes two or more focal points of the two or more curved mirrors. The control unit controls the illumination optical system so that the abovementioned image moves in a direction intersecting the longitudinal direction on the fundus.
A61B 3/12 - Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions for looking at the eye fundus, e.g. ophthalmoscopes
A61B 3/14 - Arrangements specially adapted for eye photography
The purpose of the present invention is to provide a measurement device that can be easily taken out from a storage case and that can prevent lower back pain or the like. The measurement device comprises: a measurement device body 2 having a laser light emitting unit for emitting laser light for measurement; a pedestal that supports the measurement device body 2 so as to be rotatable in the horizontal direction; and handles 70, 71 protruding from the measurement device body 2, wherein the handles 70, 71 each protrude to the back surface side along the radial direction from a horizontal direction center OP with respective angles θ1, θ2 in a range of 40-45 degrees to the left and right from the horizontal direction center OP in a state in which the measurement device body 2 is erected, such that wrists do not bend when the handles are gripped. A bulging part 80 that bulges most forward is formed on the front surface side of the measurement device body 2 on the side opposite to the handles 70, 71. In the erected state, the handles 70, 71 and batteries 38, 39 applying a voltage to the laser light emitting unit have different vertical positions as referenced to the bulging part 80.
[Problem] To enable acquisition of three-dimensional information obtained from a viewpoint on a construction machine. [Solution] This computing device: receives measurement data measured by tracking the position of a reflection prism 102 on a construction machine 100 equipped with a laser scanner 101 and the reflection prism 102 using a total station 200 of which the position and the attitude in a specific coordinate system are known; acquires a laser scan point cloud obtained by the laser scanner 101; transforms the coordinates of the laser scan point cloud to those in the specific coordinate system on the basis of the measurement data and the attitude of the laser scanner 200; detects a change on the time axis in point cloud data obtained through the coordinate transformation; and identifies the contents of the work being performed by the construction machine on the basis of the change on the time axis in the point cloud data.
This plant sensor is provided with: a light emitting unit (6) that emits a measuring beam (2) including at least two wavelengths at a prescribed spread angle; a receiving unit that acquires a reflected measuring beam from a measuring object by dividing the beam into two wavelengths; a wavelength selection member (8) that is provided on an optical path for at least one of the measuring beam and the reflected measuring beam and that extracts two wavelengths from the measuring beam and/or the reflected measuring beam; and a control unit (9) that calculates growing conditions of the measuring object on the basis of the quantity of the measuring beam and the quantity of the received reflected measuring beam at each of the wavelengths. The wavelength selection member is configured to have a wavelength selection film (25) having formed, on the entry surface and/or the emission surface, a recess section (27), the thickness of which increases in response to an increase in the entry angle of the measuring beam or the reflected measuring beam with respect to the the wavelength selection member.
G01N 21/27 - Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands using photo-electric detection
This plant sensor comprises: a first light-emitting unit (5) which emits, at a prescribed spread angle, first measurement light (21) including a first wavelength band; a second light-emitting unit (6) which emits, at a prescribed spread angle, second measurement light (25) including a second wavelength band; at least one light reception unit (7) which receives first reflected measurement light and second reflected measurement light from an object to be measured; wavelength selection members (8, 9) which extract the first wavelength band and the second wavelength band from at least one of each of the first and second measurement light and each of the first and second reflected measurement light; and a control unit which calculates a growing condition of the object to be measured on the basis of a light quantity of each beam of the measurement light and a reception light quantity of each beam of the reflected measurement light, wherein each of the wavelength selection members is configured to have, on at least one of the incident surface and the emission surface, a wavelength selection film (28) which has a recess that increases the film thickness corresponding to an increase in an incident angle of each beam of the measurement light and each beam of the reflected measurement light with respect to the wavelength selection members.
G01N 21/27 - Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands using photo-electric detection
Provided is a method for manufacturing a display device, which makes it possible to easily achieve the fixation of a display panel and can reduce load on the display panel. The method is a method for manufacturing a display device (a monitor (15)) rotatably held by a rotation-holding mechanism (16) having at least one rotation axis (C1, C2) in an ophthalmologic device (10), in which a metal plate (32) that covers the back side of a planar display panel (a liquid crystal panel (30)) is rotatably held by the rotation-holding mechanism (16) and the display panel is adhered (with an adhesive tape (40)) and fixed to the metal plate (32).
[Problem] To enable acquisition of three-dimensional information obtained from a viewpoint on a construction machine. [Solution] This computing device: acquires positioning data by tracking and measuring the position of a reflection prism 102 on a construction machine 100 equipped with a camera 101 and the reflection prism 102, using a total station 200 of which an exterior orientation element in a specific coordinate system is known; acquires image data of a plurality of images captured by the camera 101 imaging overlapping areas from a plurality of different positions; calculates the relative positional relationship between a plurality of feature points p1, p2, p3 extracted from the plurality of captured images and the plurality of different positions of the camera 101; calculates the trajectory of the movement of the camera 101 with respect to the plurality of feature points p1, p2, p3 on the basis of changes in the relative positional relationship; and determines the positions of the plurality of feature points p1, p2, p3 in the specific coordinate system on the basis of a comparison between the calculated trajectory of the movement of the camera 101 and the positioning data.
The purpose of the present invention is to provide a three-dimensional surveying apparatus, a three-dimensional surveying apparatus driving method, and a three-dimensional surveying apparatus driving program that can minimize operating time and save power consumption of a battery. A three-dimensional surveying apparatus 2 is provided with: a motor 433 that rotates a rotation object; a rotary encoder 434 that detects the rotation angle of the rotation object; a calculation unit 461 that calculates, as an initial phase, the phase relationship of the phase of the motor 433 with respect to the zero position of the rotary encoder 434; and a storage unit 468 that stores the initial phase as a drive parameter. The calculation unit 461 stores the drive parameter in advance in the storage unit 468, and drives, at the initial operation after power on, the motor 433 by open loop control. Upon detection of the zero position of the rotary encoder 434, the calculation unit applies the drive parameter stored in the storage unit 468 as a phase angle, and then drives the motor 433 by closed loop control using a value of the rotary encoder 434.
G01C 15/00 - Surveying instruments or accessories not provided for in groups
G01B 7/30 - Measuring arrangements characterised by the use of electric or magnetic techniques for testing the alignment of axes
G01D 5/12 - Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
23.
OPHTHALMIC DEVICE, METHOD FOR CONTROLLING OPHTHALMIC DEVICE, AND PROGRAM
This ophthalmology device includes a measurement optical system, a control unit, and a calculation unit. The measurement optical system includes a focusing lens. The measurement optical system measures the wavefront aberration of an eye under examination in which an intraocular lens is to be placed, and acquires a Hartmann image. The control unit controls the focusing lens so as to search for a state in which at least one of a plurality of spot images constituting the Hartmann image is separated into two or more separated spot images, and causes the measurement optical system to acquire a Hartmann image in a state in which two or more separated spot images are separated. The calculation unit calculates, on the basis of the Hartmann image, the refractive power of the eye under examination.
A61B 3/103 - Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions for determining refraction, e.g. refractometers, skiascopes
A61B 3/11 - Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions for measuring interpupillary distance or diameter of pupils
24.
OPHTHALMIC INFORMATION PROCESSING DEVICE, OPHTHALMIC DEVICE, OPHTHALMIC INFORMATION PROCESSING METHOD, AND PROGRAM
This ophthalmic information processing device calculates the refractive power of an examined eye wearing an intraocular lens on the basis of wavefront aberration information obtained by conducting wavefront aberration measurement for the examined eye. The ophthalmic information processing device comprises an acquisition unit and a calculation unit. The acquisition unit acquires at least intraocular lens information representing the optical characteristics of the intraocular lens. The calculation unit uses the intraocular lens information to change a refractive power calculation process method and calculate the refractive power of the examined eye.
A61B 3/103 - Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions for determining refraction, e.g. refractometers, skiascopes
25.
OPHTHALMIC DEVICE AND METHOD FOR CONTROLLING OPHTHALMIC DEVICE
Provided are an ophthalmic device and a method for controlling an ophthalmic device with which it is possible to easily generate satisfactory three-dimensional data of an observed portion of an eye under examination. The present invention is provided with: a pre-scan control unit (216) for performing a pre-scan on the observed portion (eye fundus (Ef)); a tomographic shape acquisition unit (218) for detecting or predicting the tomographic shape of the observed portion; a main scan control unit (220) for controlling an optical scanner and executing a main scan on the observed portion; an optical path length acquisition unit (214) for acquiring the optimum optical path length at a specific scan position of the main scan at least before the main scan; an optical path length adjustment control unit (224) for controlling, during the execution of the main scan, an optical path length changing unit and adjusting the optical path length to the optimum optical path length; and a three-dimensional data generation unit (226) for generating three-dimensional data (404) of the observed portion.
The ophthalmologic device according to one embodiment includes a first imaging unit, a second imaging unit and an evaluation processing unit. The first imaging unit includes a first optical system that meets Scheimpflug conditions, and is configured such that first imaging under a first imaging condition is applied to an anterior eye segment of an eye to be examined. The second imaging unit includes a second optical system that meets Scheimpflug conditions, and is configured such that second imaging under a second imaging condition that is different from the first imaging condition is applied to the anterior eye segment in parallel with the first imaging. The evaluation processing unit is configured so as to generate evaluation information about a floating substance in an aqueous humor on the basis of a first image generated in the first imaging by the first imaging unit and a second image generated in the second imaging by the second imaging unit.
An ophthalmologic device according to an embodiment of the present invention includes: an illumination system that projects illumination light onto an eye to be examined; and an image-capturing system that captures an image of the eye to be examined. The illumination system and the image-capturing system are configured so as to satisfy the Scheimpflug conditions. The illumination system includes a light source unit and an illumination polarizer. The light source unit outputs slit illumination light. The illumination polarizer extracts an illumination polarization component from the slit illumination light output by the light source unit. The illumination system projects the illumination polarization component extracted by the illumination polarizer onto the eye to be examined so as to serve as the illumination light. The image-capturing system includes an image-capturing polarizer and an imaging element. The image-capturing polarizer extracts an image-capturing polarization component from return light coming from the eye to be examined onto which the slit illumination light is projected. The imaging element detects the image-capturing polarization component extracted by the image-capturing polarizer.
Provided is an ophthalmological device that can acquire information about an eye to be examined by a simpler operation and with higher efficiency. The ophthalmological device (100) is provided with: a measurement head (16) having a measurement optical system (21) that is an information acquisition unit to be used for the acquisition of information about an eye to be examined; a display unit (30) that has a touch-panel-type display screen (30a) on which an operation picture image is displayed; and a control unit (26) that controls the measurement head (16) on the basis of input information including a touch operation for the display screen (30a). The control unit (26) has: a normal input mode for controlling the measurement optical system (21) on the basis of the input information for the operation picture image; and a gesture input mode for controlling the measurement optical system (21) on the basis of input information for a gesture input region (30c) by gesture inputting.
A surveying system (1) includes: a target device (3) that includes a pole (14) and a target (15) having a known distance from the bottom end of the pole; and a surveying device (2) that is capable of measuring the target. The surveying system is configured such that the pole is pivoted with the bottom end of the pole positioned at a prescribed measurement point (13), the surveying device measures the target at at least three points, three-dimensional coordinates of a virtual measurement point are computed on the basis of the results of measurement of individual targets, the degree of matching between the measurement point and the virtual measurement point is computed as a confidence, and an operation for finishing measurement is performed when the confidence satisfies a preset threshold.
[Problem] To reduce operation noise and impact in an ophthalmological device for measuring intraocular pressure using high-pressure gas. [Solution] An ophthalmological device comprising: a high-pressure cylinder 101 that continuously generates a high-pressure gas; a pressure storage tank 104 for storing the high-pressure gas fed from the high-pressure cylinder 101; a pressure regulator 103 that is disposed between the high-pressure cylinder 101 and the pressure storage tank 104, the pressure regulator 103 feeding high-pressure air fed from the high-pressure cylinder 101 to the pressure storage tank 104 in a state of being stabilized at a specific pressure; a nozzle 107 that is linked to the pressure storage tank 104 and that ejects the high-pressure gas at a subject eye 200; and an electromagnetic valve 105 that is disposed between the pressure storage tank 104 and the nozzle 107.
A61B 3/16 - Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions for measuring intraocular pressure, e.g. tonometers
31.
OPHTHALMOLOGIC DEVICE, METHOD FOR CONTROLLING OPHTHALMOLOGIC DEVICE, PROGRAM, AND RECORDING MEDIUM
An ophthalmologic device (1000) according to an embodiment includes an imaging unit (1010), a control unit (1020), and an image processing unit (1030). The imaging unit includes an optical system (1011) satisfying the Scheimpflug condition. The control unit is configured to control the imaging unit so as to perform imaging of a subject eye at least twice at different imaging conditions. The image processing unit is configured to generate a high-dynamic-range image on the basis of two or more images of the subject eye captured by the imaging performed at least twice at different imaging conditions.
The glaucoma screening method according to an embodiment includes the following steps. In a calculation model preparation step, a calculation model is prepared, the calculation model including a linear combination of at least one papilla parameter that represents the thickness of a retinal tissue in an optic papilla area and a linear combination of at least one macula parameter that represents the thickness of a retinal tissue in a macula area. In an OCT data generation step, the ocular fundus of an eye to be tested is subjected to OCT scanning to generate OCT data. In a measurement value calculation step, a plurality of measurement values including a papilla measurement value corresponding to each papilla parameter and a macula measurement value corresponding to each macular parameter of the calculation model are calculated on the basis of the OCT data. In a measurement value input step, the calculated plurality of measurement values are input into the calculation model. In a calculation result provision step, a calculation result output from the calculation model in accordance with the inputting of the plurality of measurement values is provided.
An ophthalmic information processing device according to the present invention comprises a fitting processing unit and a display control unit. The fitting processing unit subjects a two-dimensional or three-dimensional OCT image, which represents the shape of a prescribed layer region in the fundus of a to-be-examined eye, to a two-dimensional ellipse approximation process or a three-dimensional ellipsoid approximation process. The display control unit causes a display means to display a prescribed region in the OCT image and display an ellipse center angle, which corresponds to a range of a prescribed region around an ellipse center of a two-dimensional ellipse specified by the fitting processing unit, or an ellipsoid center angle, which corresponds to a range of a prescribed region around an ellipsoid center of a three-dimensional ellipsoid specified by the fitting processing unit.
A61B 3/10 - Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions
A61B 3/12 - Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions for looking at the eye fundus, e.g. ophthalmoscopes
34.
OPHTHALMOLOGIC DEVICE, METHOD FOR CONTROLLING OPHTHALMOLOGIC DEVICE, PROGRAM, AND RECORDING MEDIUM
An ophthalmologic device according to one embodiment of the present invention includes an illumination system, an imaging system, a movement mechanism, and a control unit. The illumination system projects illumination light onto an eye under test. The imaging system images the eye under test. The imaging system includes an imaging element. The illumination system and the imaging system are configured to satisfy a shine-proof condition. The movement mechanism moves the illumination system and the imaging system. The control unit controls the illumination system, the imaging system, and the movement mechanism to cause the imaging system to collect a series of images. With regard to the control for causing the imaging system to collect the series of images of the eye under test, the control unit controls at least one among the illumination system and the imaging system such that a projection time of illumination light onto the eye under test is shorter than an exposure time of the imaging element, and such that at least a portion of the projection period of the illumination light onto the eye under test and at least a portion of the exposure period of the imaging element overlap.
An automated optical coherence tomography (OCT) method that includes receiving an input from a patient, acquiring a reference image of an object indicating a desired scan location and acquiring a real-time image of the object, where the reference image is unique to a patient and remotely acquired. The real-time image is registered to the reference image to determine a desired scan location. An OCT image is automatically acquired at the desiring scan location.
A61B 3/10 - Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions
A61B 3/12 - Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions for looking at the eye fundus, e.g. ophthalmoscopes
A61B 3/00 - Apparatus for testing the eyes; Instruments for examining the eyes
A61B 3/113 - Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions for determining or recording eye movement
This measuring device comprises: a detecting unit including a light source and a light receiving unit; a reflecting element for reflecting light emitted from the light source around an optical axis of the detecting unit; a deflecting unit which is disposed around the optical axis, and which reflects the light reflected by the reflecting element to the side of an object being irradiated, thereby deflecting the light; and a control unit which causes light reflected from the object being irradiated to be received by the light receiving unit via the deflecting unit and the reflecting element, and which detects a spatial position of the object being irradiated from a round-trip time and an emission direction of the light.
A measurement device according to the present invention comprises: a light source; a reflection element that reflects, about the optical axis of the light source, light which has been emitted from the light source; a deflection unit that is disposed about the optical axis and that deflects, toward an irradiation target by reflection, the light which has been reflected by the reflection element; and a directivity impartment unit that imparts directivity to the light which is projected to the irradiation target.
An ophthalmic device pertaining to an exemplary embodiment of the present invention includes a moving image acquisition unit, an image processing unit, and an evaluation processing unit. The moving image acquisition unit acquires a moving image of an eyelid of a subject. The image processing unit identifies a meibomian gland region from at least one frame of the moving image of the eyelid of the subject acquired by the moving image acquisition unit. The evaluation processing unit generates evaluation information about predetermined diseases on the basis of the meibomian gland region identified by the image processing unit.
Provided are an ophthalmic device and a method for controlling an ophthalmic device with which it is possible to reliably preventing collision of an eye property acquisition unit with the face of a subject. The ophthalmic device comprises: a device body (measurement head (14)) including a first eye property acquisition unit (auto ref-keratometer (14A)) and a second eye property acquisition unit (contactless tonometer (14B)); a first alignment detection unit (alignment detection unit (40)) that detects a first relative position of the subject's eye with respect to the first eye property acquisition unit; a first alignment control unit (alignment control unit (42)) that performs first alignment; a forward movement control unit (48) that performs forward movement for moving the device body forward; a temporary stop position setting unit (46) that, on the basis of a detection result from the first alignment detection unit, sets a temporary stop position for the device body that is moved forward; and a contactless sensor (capacitive sensor (26)) that is capable of contactlessly detecting the approach of the second eye property acquisition unit to the face of the subject.
A61B 3/10 - Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions
A61B 3/103 - Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions for determining refraction, e.g. refractometers, skiascopes
A61B 3/107 - Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions for determining the shape or measuring the curvature of the cornea
A61B 3/16 - Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions for measuring intraocular pressure, e.g. tonometers
Provided is a growing condition evaluation system capable of suitably evaluating a development condition of an animal. This growing condition evaluation system 10 comprises: a laser measurement apparatus 13 for receiving laser light that has been emitted toward and reflected from an animal (cow 51), thereby acquiring point group data D1 indicating the appearance of the animal (cow 51) in three-dimensional coordinates; a reference location detection unit 67 for detecting a reference location Pr in the point group data D1; a normalization unit 69 for adjusting the size of the point group data D1 such that the reference location Pr has a uniform size, and generating normalized data D7; an approximation curve calculation unit 74 for calculating an approximation curve Ac that is suitable for the normalized data D7; and an evaluation value calculation unit 75 for calculating, on the basis of the approximation curve Ac, an evaluation value Ev indicating an evaluation of the animal (cow 51).
This fundus observation device includes an optical system, two concave mirrors, and a holding member. The optical system projects light from a light source onto the fundus of an eye being examined, and receives return light from the fundus. The two concave mirrors each have a concave reflective surface, and guide light from the optical system to the fundus and guide the return light to the optical system. The holding member holds the two concave mirrors. At least one of the two concave mirrors has a flange having one of a fixing part or a fixed part formed thereon. The other of a fixing part or a fixed part is formed on the holding member. The fundus observation device is configured so that the flange is held by the holding member in a state in which the fixed part is fixed by the fixing part.
This fundus observation device includes an optical system, two concave mirrors, and a holding member. The optical system projects light from a light source onto the fundus of the subject's eye and receives light returned from the fundus. The two concave mirrors each have a concave reflecting surface, guide light from the optical system to the fundus, and guide return light to the optical system. The holding member can hold the two concave mirrors arranged on both sides so as to have predetermined relative positions in a predetermined one-dimensional direction or predetermined two-dimensional directions.
A surveying system (1) comprising a self-propelled surveying instrument (2), a remote terminal device (3), and at least two reflecting bodies (4a, 4b), wherein the two reflecting bodies are installed at known points; the self-propelled surveying instrument comprises a self-propelled drive part (5) capable of traveling forwards and backwards and left and right, a surveying instrument (6) that has a tracking function and is capable of measuring the ranging angle of the reflecting bodies, and a laser line device (7) that emits a laser line in at least the vertical direction; the self-propelled drive part and the surveying instrument each have a communication function; the remote terminal device is capable of remotely operating the self-propelled surveying instrument; the surveying instrument measures the two reflecting bodies and measures the position of the self-propelled surveying instrument itself by resection; the self-propelled drive part moves on the basis of a marking position specified by the remote terminal device; the surveying instrument measures the position of the self-propelled surveying instrument while tracking one of the reflecting bodies, and sends the measurement result to the remote terminal device; and the remote terminal device stops the self-propelled drive part when the measurement result matches the marking position, causes the laser line device to emit a laser line vertically upward, and transcribes the marking position on the ceiling.
Provided is an ophthalmic device and a control method for an ophthalmic device, whereby it is possible to easily determine whether a movement limit position is set to an appropriate range. The present invention comprises: a relative movement unit (drive mechanism (13)) that relatively moves a device body (measurement head (14)) with respect to an eye (E) to be examined; a movement limit position acquisition unit (safety stopper position acquisition unit (56)) that acquires a movement limit position (safety stopper position (SP)) of the device body; a forward movement control unit (58) that executes forward movement for moving the device body forward; a non-contact sensor (capacitive sensor (36)) that is capable of detecting, in a non-contact manner, the approach of the device body toward the face of an examinee; an estimation unit (64) that estimates, during execution of the forward movement, a positional relationship in the front-back direction of the eye to be examined with respect to the device body on the basis of a detection value of the non-contact sensor; and a determination unit (66) that determines whether the movement limit position acquired by the movement limit position acquisition unit is in an appropriate range on the basis of the positional relationship estimated by the estimation unit.
A61B 3/16 - Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions for measuring intraocular pressure, e.g. tonometers
45.
OPHTHALMIC DEVICE AND CONTACTLESS SENSOR OPERATION CONFIRMATION METHOD
Provided are an ophthalmic device and a contactless sensor operation confirmation method with which it is possible to perform an operation confirmation of a contactless sensor at low cost, without providing a new installation space. The ophthalmic device comprises: a drive mechanism (13) that moves an eye property acquisition unit (contactless tonometer (14B)) relative to a subject's eye (E); a contactless sensor (capacitive sensor (36)) that is provided in the eye property acquisition unit and is capable of contactlessly detecting the approach of the eye property acquisition unit to the face of a subject; a state switching unit (45a) that moves at least one of the eye property acquisition unit and a specific structural item (forehead rest (12b)) of the ophthalmic device to switch to a detection state in which the contactless sensor can detect the structural item; a detection value acquisition unit (45b) that acquires a detection value of the contactless sensor at least in the detection state; and a determination unit (45c) that determines whether the contactless sensor operates normally, on the basis of the detection value acquired by the detection value acquisition unit.
A61B 3/10 - Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions
A61B 3/103 - Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions for determining refraction, e.g. refractometers, skiascopes
A61B 3/107 - Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions for determining the shape or measuring the curvature of the cornea
A61B 3/16 - Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions for measuring intraocular pressure, e.g. tonometers
A surveying system having a flying device (2) that is remotely steerable and has a flying body (4) and a measuring instrument (5), and a remote controller that controls the flight of the flying device and is capable of wirelessly communicating with the flying device, wherein the flying device is configured to measure the surface shape of a surface (44) to be measured by means of the measuring instrument while the flying body is made to fly along a predetermined flight path (48).
This surveying system, which employs a surveying device and a terminal having the function of controlling the surveying device: accepts selection, by means of the terminal, of survey points on a land side and a structure side; causes the surveying device to measure positions of the selected survey points on the land side and the structure side; and, on the basis of the measured positions of the survey points, calculates a first dimension or a second dimension of the survey point on the structure side relative to the survey point on the land side.
In this measurement system in which a measurement device and a terminal having a function for controlling the measurement device are used, a selection of a plurality of boundary points as measurement points on land is received, the positions of the selected boundary points are measured by the measurement device, and the result of a success/failure determination as to whether the length of a boundary side connecting a plurality of boundary points satisfies a predetermined success criterion is displayed.
This surveying system has a function for displaying a selection part, an image registration part, and a result display part, the result display part having a function for displaying a result display screen in which a selected measurement point and a captured image of the selected measurement point are associated, and the image registration part having a function for capturing an image of the selected measurement point.
An ophthalmic device, which is capable of easily and quickly acquiring eye characteristics of an eye being examined even in the event of nystagmus of the eye being examined and when an examinee is a child, and a control method thereof are provided. This ophthalmic device comprises: a detection unit for detecting a relative position of an eye to be examined with respect to an eye characteristic acquisition unit; a tentative alignment control unit for carrying out tentative alignment of the eye characteristic acquisition unit with respect to the eye to be examined by driving a relative movement unit on the basis of the detection result of the detection unit; a redetection unit for causing the detection unit to repeatedly execute the relative position detection after the tentative alignment is completed; a determination unit for determining whether or not the eye characteristic acquisition unit has approached the eye to be examined by a distance equal to or greater than a preset threshold value as a result of the tentative alignment on the basis of detection results of the detection unit obtained before and after the tentative alignment; and an operation mode selection unit for selecting, on the basis of the determination result of the determination unit, one of a normal mode and a quick mode as an operation mode for the alignment of the eye characteristic acquisition unit with respect to the eye to be examined and for the acquisition of the eye characteristics by the eye characteristic acquisition unit.
A61B 3/103 - Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions for determining refraction, e.g. refractometers, skiascopes
51.
SCANNING IMAGING DEVICE, INFORMATION PROCESSING DEVICE, METHOD FOR CONTROLLING SCANNING IMAGING DEVICE, METHOD FOR CONTROLLING INFORMATION PROCESSING DEVICE, INFORMATION PROCESSING METHOD, PROGRAM, AND RECORDING MEDIUM
An ophthalmic examination device 1 according to an embodiment is a scanning imaging device for imaging a sample using optical scanning. The ophthalmic examination device 1 acquires a data set by redundantly collecting data on a sample by the optical scanning using an optical scanner 44, an OCT unit 100, and a control section 210. An image data construction section 220 generates an image set on the basis of the acquired data set. An image selection section 225 selects a plurality of images from the generated image set. An image data processing section 231 executes relative positional adjustment of this image set by applying, to this image set, a plurality of registrations respectively based on the selected plurality of images.
Provided are an optical characteristic display device and an optical characteristic display method that can perform a simulation of optical characteristics of a patient eye, said simulation corresponding to the patient eye into which an intraocular lens has been inserted. The present invention comprises: an aberration acquisition unit that acquires the intraocular aberration, corneal aberration, and internal aberration of a patient eye into which an intraocular lens has been inserted; a display control unit that causes optical characteristics of the patient eye to be displayed on a monitor on the basis of at least the intraocular aberration and the internal aberration; a first operation unit that accepts a change operation changing only one or a plurality of parameters of the internal aberration within the patient eye; an internal aberration prediction unit that, in response to the change operation of the first operation unit, predicts the internal aberration after the change of the parameter or parameters; and a recalculation unit that recalculates the intraocular aberration on the basis of the internal aberration predicted by the internal aberration prediction unit and the corneal aberration acquired by the aberration acquisition unit, wherein on the basis of the internal aberration predicted by the internal aberration prediction unit and the intraocular aberration recalculated by the recalculation unit, the display control unit performs an update process to update the optical characteristics displayed on the monitor.
A61B 3/107 - Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions for determining the shape or measuring the curvature of the cornea
A61B 3/103 - Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions for determining refraction, e.g. refractometers, skiascopes
An ophthalmological device according to the present invention comprises a projection optical system, a light-receiving optical system, and a deflecting member. The projection optical system projects light to the fundus of an eye being examined. The light-receiving optical system receives return light from the eye being examined. The deflecting member can be disposed at a position that is optically substantially conjugate with the fundus, and deflects and leads the return light to the light-receiving optical system.
[Problem] The purpose of the present invention is to provide a technique for effectively guiding an operator in survey setting using a plurality of targets. [Solution] This survey system comprises: a total station 100 which is a survey device; reflection prisms 141-145 which are a plurality of targets to be surveyed by the total station 100; and smartphones 131-135 prepared corresponding to the reflection prisms 141-145 and provided with a GNSS positioning function. The reflection prisms 141-145 and the smartphones 131-135 respectively correspond one by one to each other. The reflection prisms 141-145 and the smartphones 131-135 move integrally. In the smartphones 131-135, predetermined installation scheduled positions of the reflection prisms and the own positioning positions having been determined through positioning by the GNSS positioning function are displayed on display screens of the respective terminals.
Provided is a building inside structure recognition system for recognizing a structure in a building by using a machine learning model. A building inside structure recognition system according to the present invention comprises: a machine learning model generation device that generates a machine learning model by executing machine learning in which a correct image generated from building information modeling (BIM) data is set as correct data and a virtually observed image generated by rendering the BIM data is set as observation data; and a building inside structure recognition device that recognizes a structure in a building by using the machine learning model generated by the machine learning model generation device.
This ophthalmologic device is provided with a light source, an iris diaphragm, a light condensing member, a slit, and an image sensor. The light source can be arranged at a position that is substantially optically conjugated with the iris of an eye to be examined. The iris diaphragm is arranged at a position that is substantially optically conjugated with the light source, in which an opening through which illumination light emitted from the light source can pass is formed at a position off-centered from the optical axis. The light condensing member is arranged between the light source and the iris diaphragm. The slit can be arranged at a position that is substantially optically conjugated with the fundus of an eye to be examined, in which a slit-like opening through which illumination light has passed through the opening can pass is formed. The image sensor receives return-light from the fundus irradiated with the illumination light that has passed through the slit.
This ophthalmological device 1 is provided with: a light source 21; a spectral member 23 that disperses light emitted from the light source 21; a first diaphragm 24 that has a slit orifice 241 through which light ejected from the spectral member 23 is emitted; a second diaphragm 25 that has a plurality of splitting orifices 251 arranged along the dispersion direction of the spectral member 23 and splits light emitted through the slit orifice 241; an optical scanner 51 that guides light emitted from the second diaphragm 25 in such a manner that an illuminated area becomes movable at an observation site in an eye E to be examined; a light-receiving system 3 that has a detection unit 33 for detecting return light Lb from the illuminated area; a first focus optical system (26, 29) that focuses the first diaphragm 24 and the observation site on each other; and a second focus optical system 31 that is controlled so as to focus the observation site and the detection unit 33 on each other in conjunction with the focusing by the first focus optical system.
A61B 3/14 - Arrangements specially adapted for eye photography
A61B 3/10 - Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions
A61B 3/12 - Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions for looking at the eye fundus, e.g. ophthalmoscopes
58.
OPTICAL ELEMENT FOR SURGICAL MICROSCOPES AND METHOD FOR PRODUCING SAME, AND MEDICAL OPTICAL DEVICE
In order to provide an ophthalmic data management system capable of preventing eye information from being associated with incorrect attachment information when the eye information is stored in a database, the present invention comprises: an eye examination unit (11) that acquires eye information pertaining to a subject; a database (22) that stores eye information associated with identification information specifying the subject; and a data management unit (21) that receives eye information which is acquired by the eye examination unit (11) and to which attachment information including the identification information is attached, and stores same in the database (22). The data management unit (21) determines, on the basis of a result obtained by collating first eye information newly acquired by the eye examination unit (11) with second eye information already stored in the database (22), whether the attachment information attached to the first eye information is correct or incorrect.
This ophthalmic device comprises an optical system, an angle change mechanism, a visual fixation system, a control unit, and an analysis unit. The optical system comprises: an objective lens; an imaging optical system that receives light from a subject's eye via the objective lens; and an OCT optical system that is coupled to a light path of the imaging optical system. The angle change mechanism changes the orientation of the optical axis of the optical system by tilting the optical system. The visual fixation system projects a visual fixation light flux toward the subject's eye from an emission position of the visual fixation light flux, the relative position of which can be changed with respect to the optical axis. The control unit changes the angle formed between the visual axis of the subject's eye and the optical axis on the basis of an OCT measurement position in an image of the subject's eye so as to cause the visual fixation light flux to be projected from an emission position corresponding to the OCT measurement position, and causes OCT measurement to be executed on the subject's eye while the visual fixation light flux is kept projected onto said eye. An image formation unit forms an OCT image of the subject's eye. The analysis unit identifies the position of the OCT image in the image of the subject's eye on the basis of the emission position.
According to the present invention, an abnormal sound determination method includes an acquisition step for acquiring sound data, a filter processing step for adjusting the sound data in accordance with a person's ability to hear, and a data generation step for generating adjusted sound data as input data for machine learning.
This ophthalmic information processing device includes a feature region identifying unit and a depth information identifying unit. The feature region identifying unit identifies a feature region in spectral distribution data, which is obtained as a result of receiving light which was illumination light projected onto an eye subjected to examination and then returned from the eye and is within a prescribed wavelength range. The depth information identifying unit identifies depth information of the feature region, on the basis of measurement data of the eye subjected to examination, the measurement data having a higher resolution in the depth direction compared to the spectral distribution data.
An ophthalmological device (1000) according to an illustrative embodiment of the present invention comprises an image acquisition unit (1010) and a data processing unit (1020). The image acquisition unit (1010) acquires a Scheimpflug image of a subject's eye. The data processing unit (1020) performs processing for generating inflammation state data, which indicates the inflammation state of the subject's eye, from the Scheimpflug image acquired by the image acquisition unit (1010).
In order to provide an ophthalmic device which enables an operator to objectively recognize a positional relationship between an eye to be examined and an acquisition optical system to increase operability when the operator controls the position or orientation of the acquisition optical system, the present invention is provided with: an acquisition optical system (20) which acquires eye information about an eye to be examined (E); an electric position change mechanism (15) which changes the position of the acquisition optical system (20) relative to the eye to be examined (E) and an electric angle change mechanism (17) which changes the orientation thereof: a display (25) which an examiner operating the position change mechanism (15) and the angle change mechanism (17) can visually recognize; and a control unit (30) which causes the display (25) to display positional relationship information (J) indicating the positional relationship between the eye to be examined (E) and the acquisition optical system (20).
This survey setting point editing method comprises: a step for causing a display unit to display design data including a plurality of first survey setting points; a step for causing an input unit to receive a selection instruction for selecting the first survey setting points in an arbitrary range from the design data and a disposition interval instruction for designating a disposition interval of second survey setting points to be added between the selected first survey setting points; and a step for disposing, between the first survey setting points selected by the selection instruction, the second survey setting points at the disposition interval designated by the disposition interval instruction and creating edited data.
In the present invention, an anterior eye part analysis device: acquires a tomogram of the anterior eye part including the cornea of the subject eye formed by OCT measurement; detects a plurality of edges included in the tomogram; performs, on each of the plurality of edges, joining of the edges on the basis of a first joining condition; selects a first edge and a second edge on the basis of length from among the joined edges; performs joining of the edges on the basis of a second joining condition using each of the first edge and the second edge as references; and determines a layer boundary in the cornea in the tomogram using the joined edges.
This non-destructive inspection system 1 has a non-destructive inspection device 2 and a management device 3. The non-destructive inspection device 2 is provided with: a neutron emission unit 10 capable of emitting a neutron beam; a gamma ray detection unit 20 capable of detecting gamma rays; a device casing 30 covering the neutron emission unit 10 and the gamma ray detection unit 20, an opening 30a being formed in the device casing 30; an outer shutter 31 that opens/closes the opening 30a; dose monitors 51, 52, 53 provided to the device casing 30, the dose monitors 51, 52, 53 detecting the radiation dose; a device communication unit 56 capable of transmitting device information including the detected radiation dose to the management device 3, and capable of receiving inspection permission information from the management device 3; and a device control unit 40 that, when the inspection permission information is acquired, opens the outer shutter 31 and enables emission of a neutron beam from the neutron emission unit 10.
G01N 23/22 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by measuring secondary emission from the material
Provided is an ophthalmic microscope capable of acquiring an observation image corresponding to the object and purpose of observation of an eye to be examined and to the dominant eye of an examiner. This ophthalmic microscope comprises: an observation system for observing an eye to be examined, the observation system having an objective lens and a pair of observation light paths; an imaging system capable of stereoscopically imaging, for each observation light path, observation light for the eye to be examined; and a mode setting part capable of selectively switching between a first mode for acquiring a first image obtained by stereoscopically imaging, with the imaging system, the observation light from both observation light paths, a second mode for acquiring only a second image obtained by imaging, with the imaging system, the observation light of one observation light path by the imaging system, and a third mode for acquiring only a third image obtained by imaging, with the imaging system, the observation light of the other observation light path.
In order to provide an ophthalmic device capable of measuring the characteristics of a left eye and a right eye being examined, under the same conditions and with both eyes open, the present invention: simultaneously measures the axial length of the left eye (EL) being examined, using an OCT optical system (38) in a left-eye measurement optical system (25L), and the axial length of the right eye (ER) being examined, using the OCT optical system (38) in a right-eye measurement optical system (25R); simultaneously measures the corneal shape of the left eye (EL) being examined, using a kerato measurement system (34) in the left-eye measurement optical system (23L), and the corneal shape of the right eye (ER) being examined, using the kerato measurement system (34) in the right-eye measurement optical system (25R); and simultaneously measures the refraction characteristics of the left eye (EL) being examined, using a refraction measurement optical system in the left-eye measurement optical system (25L), and the refraction characteristics of the right eye (ER) being examined, using a refraction measurement optical system in the right-eye measurement optical system (25R).
A61B 3/10 - Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions
A61B 3/103 - Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions for determining refraction, e.g. refractometers, skiascopes
A61B 3/107 - Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions for determining the shape or measuring the curvature of the cornea
70.
INFORMATION PROCESSING DEVICE, INFORMATION PROCESSING METHOD, AND SURVEYING SYSTEM
Provided is technology with which it is possible to propose a method for resolving an error in accordance with the actual usage conditions of surveying equipment of a user. This information processing device (100) generates, from collected data (141) that includes a variety of data that pertains to a plurality of surveying devices (S) and that is collected from the plurality of surveying devices in relation to the surveying devices, training data in which error information pertaining to an error, a successful response operation that resolves the error, and a claim received from a user are employed as a set, these items of information relating to the same type of surveying devices. The error information includes information relating to an error code and a state that is in effect when the error occurs. Response operation information includes an operation performed in order to respond to the error in relation to the surveying devices. The information processing device comprises a trained model generation unit that executes machine learning using the training data and that generates a trained model (144) by which, when an error occurs in a target surveying device, a method for resolving the error is estimated.
A nondestructive inspection system 1 is provided with: a neutron radiation unit 10 capable of radiating a first neutron dose of neutrons; a neutron detection unit 20 capable of detecting a second neutron dose of neutrons scattered inside an inspection object A upon radiation of neutrons from the neutron radiation unit 10; a gamma ray detection unit 30 capable of detecting a gamma ray dose released from the inspection object A upon radiation of neutrons from the neutron radiation unit 10; and an analysis unit 50 that calculates the contained amount of a predetermined substance on the basis of the gamma ray dose and corrects the contained amount of the predetermined substance on the basis of the first neutron dose and the second neutron dose.
G01N 23/204 - Measuring back scattering using neutrons
G01N 23/22 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by measuring secondary emission from the material
G01N 23/2206 - Combination of two or more measurements, at least one measurement being that of secondary emission, e.g. combination of secondary electron [SE] measurement and back-scattered electron [BSE] measurement
A nondestructive inspecting device 1 is provided with: a neutron beam emitting unit 10 capable of emitting a neutron beam in a prescribed emission direction D1; a gamma ray detecting unit 20 capable of detecting a gamma ray incident from a prescribed detection direction D2 intersecting the emission direction D1; a device housing 30 which covers the neutron beam emitting unit 10 and the gamma ray detecting unit 20, and in which an opening portion 30a is formed in the emission direction D1 and the detection direction D2; an outer shutter 31 for opening and closing the opening portion 30a of the device housing 30; an external dose monitor 41 for detecting a radiation dose inside the device housing 30; an internal dose monitor 42 for detecting a radiation dose outside the device housing 30; and a control unit 40 for prohibiting opening of the outer shutter 31 if the radiation dose detected by at least either of the dose monitors 41, 42 exceeds a predetermined threshold.
G01N 23/22 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by measuring secondary emission from the material
73.
INFORMATION PROCESSING DEVICE AND INFORMATION PROCESSING METHOD
The present invention relates to maintenance management for a surveying instrument and provides an information processing device and an information processing method in which a complaint related to a malfunction of the surveying instrument is predicted before the complaint is raised. An information processing device (100): generates training data from collected data (141) including various types of data about each of a plurality of surveying instruments collected in relation to the plurality of surveying instruments, the training data being generated as a set of complaint information and operational status data, the complaint information including the details of complaints received from users and the time at which the complaints were received, and the operational status data including error logs and instrument logs for a surveying instrument that is the subject of a complaint within a prescribed period before the complaint was raised; executes machine learning using the training data; and generates a learning model (144) that, when given operational status data about a surveying instrument of interest is input, predicts the details and time of a complaint that will be raised against the surveying instrument of interest in the future.
Provided is a growing condition evaluation system which can suitably evaluate a development condition of an animal. The growing condition evaluation system (10) comprises: a laser measurement apparatus (13) which acquires point group data (D1) that indicates the appearance of an animal (cow 51) in three-dimensional coordinates by receiving laser light that has been emitted toward and reflected from the animal (cow 51); a surface data generation unit (65) which generates three-dimensional data (D5) of the animal (cow 51) on the basis of the point group data (D1); an approximate curve calculation unit (69) which calculates an approximate curve (Ac) that is suitable for the three-dimensional surface data (D5); and a development condition evaluation unit (71) which generates, on the basis of the approximate curve (Ac), evaluation data (Ev) that indicates evaluation of the animal (cow 51).
A vasculature image grade assessment device (500) is equipped with: an acquisition unit (510) for acquiring a vasculature image, which is an image depicting the distribution of blood vessels in an eye and is obtained using OCT angiography; an assessment value calculation unit (520) for calculating a plurality of assessment values from the vasculature image on the basis of a plurality of standards; and a grade value calculation unit (530) for calculating a grade value, which is a value representing the grade of the vasculature image, on the basis of the plurality of assessment values.
A61B 3/10 - Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions
A61B 3/12 - Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions for looking at the eye fundus, e.g. ophthalmoscopes
76.
OPHTHALMIC INFORMATION PROCESSING DEVICE, OPHTHALMIC DEVICE, OPHTHALMIC INFORMATION PROCESSING METHOD, AND PROGRAM
According to the present invention, an ophthalmic information processing device includes a search unit, a correction unit, and a display control unit. The search unit searches filter information for correcting an aberration of complex OCT data of an inspected eye so that the quality of the complex OCT data is at a prescribed level. The correction unit corrects the aberration of the complex OCT data on the basis of the filter information searched by the search unit. The display control unit causes a display means to display aberration information for the eye plane of the inspected eye corresponding to the filter information searched by the search unit.
This ophthalmic information processing device comprises a generation unit, an extraction unit, and a phase correction unit. The generation unit generates a phase difference profile by performing a depth-direction averaging process on phase differences obtained by performing calculation at respective A-line depth positions between two adjacent B-frames of complex OCT data regarding an eye being examined. The extraction unit extracts a phase drift from the phase difference profile generated by the generation unit. The phase correction unit corrects the phase of first complex OCT data of one of the aforementioned two B-frames on the basis of the phase drift extracted by the extraction unit.
This ophthalmic information processing device includes an acquisition unit and a normalization unit. The acquisition unit acquires eye shape data or an intraocular distance of an eye of a subject. The normalization unit normalizes the eye shape data or the intraocular distance on the basis of body data of the subject or the degree of refraction of the eye of the subject.
This ophthalmic information processing device includes a feature quantity extractor and a classifier. The feature quantity extractor extracts feature quantities for each of two or more mutually different images of the eyes of a subject. The classifier outputs, on the basis of the feature quantities for each of the two or more images as extracted by the feature quantity extractor and also on the basis of one or more items of background data representing the state of the subject or of the eyes of the subject, two or more items of confidence information for estimating the result of classifying the clinical state of a disease in the eyes of the subject.
G16H 30/00 - ICT specially adapted for the handling or processing of medical images
G16H 50/20 - ICT specially adapted for medical diagnosis, medical simulation or medical data mining; ICT specially adapted for detecting, monitoring or modelling epidemics or pandemics for computer-aided diagnosis, e.g. based on medical expert systems
A61B 3/10 - Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions
A61B 3/12 - Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions for looking at the eye fundus, e.g. ophthalmoscopes
A61B 3/14 - Arrangements specially adapted for eye photography
80.
OPHTHALMOLOGIC INFORMATION PROCESSING SYSTEM, OPHTHALMOLOGIC INFORMATION PROCESSING SERVER, OPHTHALMOLOGIC INFORMATION PROCESSING PROGRAM, AND OPHTHALMOLOGIC INFORMATION PROCESSING METHOD
Provided is an ophthalmologic information processing system 1 that screens, as a candidate, an examinee at risk of glaucoma, the system provided with: an information acquisition unit 111 that acquires the examinee's eye measurement information measured by an ophthalmologic device 200; and a determination unit 112 that determines whether the examinee is a candidate at risk of glaucoma on the basis of the examinee's anterior chamber depth, which is included in the measurement information acquired by the information acquisition unit 111.
A61B 3/10 - Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions
A61B 3/103 - Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions for determining refraction, e.g. refractometers, skiascopes
A61B 3/117 - Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions for examining the anterior chamber or the anterior chamber angle, e.g. gonioscopes
This fundus observation device comprises an illuminating optical system, a two-dimensional image sensor, and a tilting member. The illuminating optical system illuminates the fundus of an eye that is being examined with linear illumination light. The two-dimensional image sensor receives illumination light returning from the fundus in a movable focal plane at a position that is roughly optically conjugate with the fundus. The tilting member scans the fundus with the illumination light by linking the light path of the illumination light with the light path of the returning light and tilting the illumination light in synchrony with the movement of the focal plane. The tilting member has a structure for passing the returning light through a first region and reflecting the illuminating light in a second region that differs from the first region.
A61B 3/10 - Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions
A61B 3/12 - Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions for looking at the eye fundus, e.g. ophthalmoscopes
82.
OPHTHALMIC INFORMATION PROCESSING DEVICE, OPHTHALMIC DEVICE, OPHTHALMIC INFORMATION PROCESSING METHOD, AND PROGRAM
This ophthalmic information processing device includes an acquisition unit and a disease inference unit. The acquisition unit acquires a plurality of images, of an eye of a patient, that are different from each other in cross section direction. The disease inference unit, by using a plurality of trained models obtained by performing machine learning for the respective types of a plurality of images, outputs inference information for inferring whether or not an eye of a patient is a glaucomatous eye, from the plurality of images.
This ophthalmic information processing device includes a determiner and a detector. The determiner uses a disc hemorrhage determination model so as to determine the presence/absence of disc hemorrhaging in a frontal image of the fundus of an eye being examined, said model being obtained by machine learning using, as first teaching data, a plurality of fundus frontal images labeled to indicate the presence/absence of disc hemorrhaging. The detector uses a disc hemorrhage region detection model so as to detect a disc hemorrhage region depicted in a frontal image determined by the determiner as having disc hemorrhaging, said model being obtained by machine learning using, as second teaching data, a plurality of pairs of image groups in which a frontal image of a fundus and a disc hemorrhage region image that indicates a disc hemorrhage region depicted in the frontal image constitute a pair.
An ophthalmological observation apparatus (1) according to an exemplary embodiment of the present invention comprises a moving picture generation unit (30, 40), a transfer mechanism (70), an analysis unit (211), and a first control unit (200). The moving picture generation unit is configured to illuminate a subject's eye with light and capture images thereof so as to generate a moving picture. The transfer mechanism is configured to move the moving picture generation unit. The analysis unit is configured to sequentially detect images of a prescribed site in the subject's eye by sequentially conducting analysis on multiple still images contained in the moving picture generated by the moving picture generation unit that is being moved by the transfer mechanism. The first control unit is configured to control the transfer mechanism according to a change in a specific image parameter for the images that are sequentially detected by the analysis unit.
An ophthalmological observation device (1) according to an exemplary embodiment comprises an illumination system (30), an imaging system (40), and a focus processing unit (200, 210). The illumination system comprises a light source (32a) that emits illumination light and an indicator member (35) provided with a plurality of indicators (36a, 36b), and projects the illumination light on a subject eye (E) via the indicator member. The imaging system comprises an imaging element (62) and captures an image of the subject eye. The focus processing unit detects a plurality of indicator images from the image captured by the imaging system, and performs focus control on the imaging system on the basis of the plurality of indicator images detected.
An ophthalmological observation device (1) according to an exemplary embodiment comprises moving image generation units (30, 40), an analysis unit (211), and a display control unit (200). The moving image generation units image a subject eye having an artificial object inserted therein to generate a moving image. The analysis unit analyzes a still image included in the moving image generated by the moving image generation units, and specifies a first site image corresponding to a predetermined site of the subject eye and a second site image corresponding to a predetermined site of the artificial object. The display control unit causes a display device (3) to display the moving image generated by the moving image generation units, first position information indicating the position of the first site image specified by the analysis unit, and second position information indicating the position of the second site image specified by the analysis unit.
A61B 3/125 - Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions for looking at the eye fundus, e.g. ophthalmoscopes with contact lenses
An ophthalmologic observation device (1) according to an exemplary embodiment comprises a microscope (10), processors (203, 211), and a display control unit (201). The microscope includes a pair of imaging systems and a pair of pieces of video data of a to-be-inspected eye. The processor executes first processing so that a predetermined parameter of the pair of pieces of video data satisfies a first condition. The first processing includes at least one among control of the microscope and image processing on at least one of the pair of pieces of video data. The display control unit causes a display device (3) to display a pair of images on the basis of the pair of pieces of video data obtained through the first processing.
An ophthalmological observation device (1) according to an exemplary embodiment of the present invention comprises a moving image generation unit (30, 40), an analysis unit (211), a target location determination unit (212), and a display control unit (200). The moving image generation unit images a subject eye to generate a moving image. The analysis unit analyzes a still image, which is included in the moving image generated by the moving image generation unit, so as to detect an image of a given site in the subject eye. The target location determination unit determines a target location for a predetermined treatment at least on the basis of the image of the given site which has been detected by the analysis unit.The display control unit displays, on a display device (3), the moving image which has been generated by the moving image generation unit and target location information which indicates the target location determined by the target location determination unit.
The present invention comprises: an ophthalmological device 200 that is provided with a measurement unit 230; a measurement information processing unit 221 that converts measurement information, which has been obtained by the measurement unit 230, into image information and non-image information other than the image information; an ophthalmological device display unit 250 of the ophthalmological device 200 that displays the image information; a terminal device 400 that is arranged remotely from the ophthalmological device 200 and that is provided with a terminal display unit 340; a display unit imaging device 400 that is attached to the ophthalmological device 200 and that captures the entirety of the image which is displayed on the ophthalmological device display unit 250; an image transmission unit 480 that transmits, to the terminal device 300, the image which has been captured by the display unit imaging device 400; a measurement information transmission unit 222 of the ophthalmological device 200 that transmits the measurement information to the terminal device 300; and an information integration unit 321 that integrates the image information which has been transmitted from the image transmission unit 480 and the measurement information other than the image information so as to display these pieces of information on the terminal display unit 340.
The ophthalmic device 1 according to an exemplary embodiment of the present invention comprises an LCD 39, an OCT unit 250, an inclination information generation unit 231, and a control unit 210. The LCD 39 presents a fixation target to an eye E under examination. The OCT unit 250 applies an OCT scan to an anterior eye part Ea of the eye E under examination, and constructs an image. The inclination information generation unit 231 generates inclination information indicating the inclination state of the anterior eye part Ea that has been drawn in the image constructed by the OCT unit 250. On the basis of the inclination information generated by the inclination information generation unit 231, the control unit 210 controls the LCD 39 to move the fixation target.
An ophthalmological observation device (1) according to an exemplary embodiment of the present invention is used to observe a subject's eye. This ophthalmological observation device (1) comprises a moving image generation unit (surgical operation microscope 10), an image processing unit (data processing unit 210, image processing unit 211), and a display control unit (main control unit 201). The moving image generation unit generates a first moving image by imaging a subject's eye. The image processing unit creates multiple processed images by applying, to each of still images included in the first moving image generated by the moving image generation unit, first image processing that uses multiple values of different predetermined image parameters. The display control unit causes the respective processed images created by the image processing unit to be displayed on a first display device (display device 3).
The present invention comprises: an eye axial length acquisition unit 111 for acquiring the eye axial length of an eye of a subject; a reference value acquisition unit 112 for acquiring, as a reference value, a value relating to a physical characteristic different from the eye axial length of the subject; a relative eye axial length calculation unit 113 for calculating the relative eye axial length obtained by performing a relativization process, using the reference value acquired by the reference value acquisition unit 112, on the eye axial length acquired by the eye axial length acquisition unit 111; a population information acquisition unit 14 for acquiring population information, which is a collection of information relating to the relative eye axial lengths of a plurality of comparison subjects serving as subjects of comparison with the subject; and a relative position information calculation unit 115 for comparing the relative eye axial length of the subject as calculated by the relative eye axial length calculation unit and the relative eye axial lengths of the plurality of comparison subjects included in the population information, and calculating relative position information indicating the relative position of the relative eye axial length of the subject in the collection of comparison subjects.
A61B 3/103 - Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions for determining refraction, e.g. refractometers, skiascopes
93.
MEDICAL SYSTEM AND MEDICAL INFORMATION PROCESSING DEVICE
NATIONAL UNIVERSITY CORPORATION ASAHIKAWA MEDICAL UNIVERSITY (Japan)
Inventor
Minamide Kana
Akiba Masahiro
Sakai Jun
Yoshida Akitoshi
Abstract
A medical system 1 as in an exemplary embodiment comprises a data acquisition unit 10 and a data processing unit 20. The data acquisition unit 10 uses at least one optical method to acquire data from the fundus of a patient's eye. The data processing unit 20 processes the data acquired by the data acquisition unit 10 in order to generate information pertaining to the patient's cardiovascular system.
G16H 20/00 - ICT specially adapted for therapies or health-improving plans, e.g. for handling prescriptions, for steering therapy or for monitoring patient compliance
A61B 3/10 - Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions
A61B 3/12 - Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions for looking at the eye fundus, e.g. ophthalmoscopes
An exemplary embodiment of a slit-lamp microscope (1) includes an image acquisition unit (illumination system (2), imaging system (3), and movement mechanism (6)), a storage unit (10), and a misregistration information acquisition unit. The image acquisition unit scans the anterior ocular segment of a subject eye (E) to acquire an image. The storage unit (10) stores a first image of the anterior ocular segment of the subject eye (E), and a second image acquired in follow-up imaging performed by the image acquisition unit with reference to the first image. The misregistration information acquisition unit analyzes the first image and the second image after the follow-up imaging is performed, and acquires information relating to misregistration between the first image and the second image.
Provided is a technology making it easy to create a cross-sectional view envisioned by a worker. A surveying assistance device (50): reads in design information which includes center point data and constituent point data for a route, and in which a cross-section that includes a center point and is orthogonal to the route has been set; acquires, at a predetermined cycle, location information indicative of the current location of a device being surveyed; generates a plan view and a cross-sectional view of the route from the design information; displays the plan view and the cross-sectional view on a terminal screen unit (51); records the acquired location information and surveying information calculated from the location information, on a terminal storage unit (53) as observation point data in cross-section; displays, on the terminal screen unit (51), an observation point data list in which observation point data has been arranged as ordered data, as well as an observation cross-sectional view displaying the locations of observation points on the cross-sectional view; enables change of the order of display of the observation point data of the observation point data list in accordance with an instruction from a terminal operation unit (52); and displays a connecting line linking the observation points in accordance with the order of display on the observation cross-sectional view.
Provided is a surveying assistance method that enables assistance of center stake separation and observation of a finished shape. In the surveying assistance method, a computer (50): reads design information including center point data, of a center point set on center line of a route, and constituent point data of constituent points set on a cross section which includes the center point and is orthogonal to the center line; acquires, at a predetermined cycle, position information indicating the current position of a to-be-surveyed device (40); calculates, on the basis of the position information and the design information, a horizontal distance and a vertical distance between the current position and a reference point in a designated cross-section; displays the horizontal distance and the vertical distance as survey information on a display unit of the computer; and updates the display at every occurrence of a prescribed cycle. The reference point is a point selected from the center point or constituent points.
The present invention comprises: a benchmark measurement step for using a survey device 200 and a survey target device 300 to measure the altitude of a benchmark that serves as the reference height of a batter board; a stake head measurement step for measuring the altitude of the stake head of a placed batter board stake; and a batten top end display step for calculating the height difference from the stake head of the batter board stake to the top end of a horizontal bar on the basis of the reference height of the foundation stored in advance, the altitude of the benchmark, and the altitude of the stake head of the batter board stake to display the height difference on a terminal device 100.
This method involves a step for acquiring a benchmark elevation that is a batter board reference height by using a surveying system 1 that includes a surveying device 200 and a terminal device 100 that can communicate with the surveying device 200; a step for acquiring a first elevation difference, which is the elevation difference from the benchmark to the current line of the ground surface; a step for acquiring a second elevation difference, which is the elevation difference from the current line of the ground surface to the batten top position of a batter board post, measuring the elevation of the post heads of the installed batter board posts and acquiring the elevation of the post heads; a third elevation difference calculation step for calculating the difference in height from the post heads to the batten top position of the batter board posts on the basis of the benchmark elevation, the first elevation difference, the second elevation difference and the post head elevation; and a third elevation difference display step for displaying the third elevation difference on a screen of the terminal device.
A medical diagnostic apparatus includes a receiver circuit that receives three-dimensional volumetric data of a subject's eye, and a processor configured to separate portions of the three-dimensional volumetric data into separate segments, perform processing differently on each of the separate segments, and combine the separately processed segments to produce an enhanced three-dimensional volumetric data set. The processor is further configured to generate at least one diagnostic metric from the enhanced three-dimensional volumetric data set, and the processor is further configured to evaluate a pathological condition based on the at least one diagnostic metric. Related methods and computer readable media are also disclosed.
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