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.
An ophthalmologic apparatus includes a target projection system that presents an eye chart to a subject eye, an objective measurement optical system that objectively measures an eye characteristic of the subject eye, and a control portion that controls the target projection system and the objective measurement optical system, wherein the control portion presents the target for a predetermined time at a predetermined presentation position with the target projection system, and objectively measures the eye characteristic with the objective measurement optical system in a time series to control an operation of each portion based on a measurement result of the objective measurement.
A61B 3/00 - Apparatus for testing the eyes; Instruments for examining the eyes
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
Provided is a new survey system capable of quickly locking on a target by a simple operation. The survey system includes a surveying instrument including an imaging unit configured to acquire an image in front of a telescope, a controller 80 including a GNSS device and configured to remotely operate the surveying instrument, and a target unit including a target and an optical transmitter, and based on position information acquired by the GNSS device in the vicinity of the target unit, the surveying instrument is rotated toward the GNSS device, images when the optical transmitter turns on light and turns off light are acquired by the imaging unit, and based on a difference image between the images, the surveying instrument is rotated toward the optical transmitter, scans the periphery by the tracking unit, and is locked on to the target.
A surveying instrument having a tracking function with a measure against sunlight is provided which includes a tracking unit and a distance-measuring unit, a driving unit, an imaging device, a filter switching device configured to make switching so that either of two filters is selectively disposed on an optical axis of the imaging device, and a control unit configured to, when the imaging device acquires an image including tracking guide light, analyze the image and operate an arrival direction of the tracking guide light, and control the driving unit so that a collimation axis is directed toward the arrival direction of the tracking guide light, wherein one filter of the two filters is a tracking guide light filter configured to transmit only wavelengths in a predetermined range centered on a wavelength of the tracking guide light.
A variable magnification optical component and an ophthalmic apparatus having a simpler mechanism and requiring a small space are provided. The variable magnification optical component includes an optical path, and a power changer, disposed rotatably with respect to an optical axis of the optical path. The power changer is configured to be removably inserted into the optical path, in which the power changer includes: multiple lenses for varying power and a light beam passage hole configured not to interfere with the lenses. In a first configuration of the variable magnification optical component, the power changer is inclined at a predetermined angle, such that the lenses are retracted outside the optical path, and the optical path passes through the light beam passage hole. In a second configuration of the variable magnification optical component, the power changer is restored and the lenses are positioned on the optical path.
G02B 15/04 - Optical objectives with means for varying the magnification by changing, adding, or subtracting a part of the objective, e.g. convertible objective by changing a part
9.
BAR ARRANGEMENT INSPECTION SYSTEM AND BAR ARRANGEMENT INSPECTION METHOD
A bar arrangement inspection system includes a scanner for acquiring three-dimensional point cloud data of an inspection range, a camera for acquiring image data of the inspection range, a processor, and three-dimensional bar arrangement design data of the inspection range, the processor is configured to receive the three-dimensional point cloud data of the inspection range from the scanner and the image data of the inspection range from the camera, generate a point cloud composite image by combining the three-dimensional point cloud data with the image data, identify a bar arrangement state and positions of reinforcing bars included in the point cloud composite image, and by comparing the point cloud composite image with the three-dimensional bar arrangement design data, generate three-dimensional bar arrangement state inspection result data, and output the bar arrangement state inspection result data in such a manner that the bar arrangement error is visually identifiable.
A bar arrangement inspection result display system includes a surveying instrument, an eyewear display device including a display, a relative position sensor and a relative direction sensor, and a processor for manage coordinate spaces of the eyewear display device and the surveying instrument in a space with an origin set at a common reference point. The processor is configured to generate a three-dimensional model of a bar arrangement inspection range based on three-dimensional point cloud data of the inspection range, generate three-dimensional inspection result display data by associating bar arrangement inspection result data of the inspection range in which detail and position of bar arrangement error are associated with each other with the three-dimensional model, and display three-dimensional inspection result image by superimposing on actual objects observed with the eyewear display device in such a manner that the bar arrangement error is recognizable.
[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
20.
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.
An ophthalmic apparatus includes an image acquisition unit configured to acquire an anterior segment image of a subject eye, an optotype projection system configured to present an optotype to the subject eye in at least two presentation positions different from each other, and a line-of-sight direction detection unit configured to extract a feature point from the anterior segment image that has been acquired by the image acquisition unit when the optotype has been presented in each of the at least two presentation positions, detect positional information on the anterior segment image of the feature point that has been extracted, and detect a line-of-sight direction of the subject eye on a basis of the positional information.
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
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
A61B 3/14 - Arrangements specially adapted for eye photography
Automation of surveying operations is achieved. When surveying is performed by a surveying apparatus, acquisition of a surveying condition, acquisition of surveying data, acquisition of image data, and acquisition of environmental data are performed. These pieces of data are associated with each other and are stored as learning data. On the basis of this learning data, an AI-estimated model for estimating a surveying condition by using image data of a surveying target and environmental data of a surveying site, is generated.
Efficiency of operation related to acquisition of a tilt offset of a surveying apparatus is improved. A total station includes a tilt sensor, a tilt offset acquisition unit that acquires a tilt offset of the tilt sensor, a measurement unit that measures a variable value of a phenomenon that can cause the tilt offset to vary, and a determination unit that determines whether to acquire the tilt offset, based on output from the measurement unit.
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
An ophthalmologic apparatus includes an objective measurement optical system that measures an objective refraction characteristic of a subject eye and a control portion that performs total control including control of the objective measurement optical system, wherein the control portion analyzes a characteristic amount of a ring image obtained by measuring the objective refraction characteristic of the subject eye to feedback to a subjective examination content of the subject eye according to an analysis result of the characteristic amount of the ring image.
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
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
33.
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
34.
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
35.
OPHTHALMIC APPARATUS, METHOD OF CONTROLLING OPHTHALMIC APPARATUS, AND RECORDING MEDIUM
An ophthalmic apparatus includes an objective lens, a first illumination optical system arranged approximately coaxially with an optical axis of the objective lens and configured to be capable of irradiating first illumination light onto an eye to be examined through the objective lens, a second illumination optical system arranged so as to be eccentric to the optical axis of the objective lens and configured to be capable of irradiating second illumination light onto the eye to be examined through the objective lens, a left-eye observation optical system configured to be capable of guiding returning light from the eye to be examined, where the first illumination light or the second illumination light has entered through the objective lens, to a left-eye eyepiece or a left-eye imaging element, and a right-eye observation optical system configured to be capable of guiding returning light from the eye to be examined, where the first illumination light or the second illumination light has entered through the objective lens, to a right-eye eyepiece or a right-eye imaging element. The second illumination optical system is capable of changing an incident angle of a principal ray of the second illumination light relative to the eye to be examined.
A61B 3/00 - Apparatus for testing the eyes; Instruments for examining the eyes
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 ophthalmic microscope includes an observation system configured to observe an eye to be examined, the observation system including an objective lens and a pair of observation optical paths, an imaging system capable of stereoscopically imaging respective observation lights of the eye to be examined from the observation optical paths, and a mode switching unit capable of selectively switching among a first mode for acquiring a first image obtained by stereoscopically imaging the observation lights from both the observation optical paths using the imaging system, a second mode for acquiring only a second image obtained by imaging the observation light from one of the observation optical paths using the imaging system, and a third mode for acquiring only a third image obtained by imaging the observation light from the other of the observation optical paths using the imaging system.
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.
OPHTHALMOLOGIC INFORMATION PROCESSING SYSTEM, OPHTHALMOLOGIC INFORMATION PROCESSING SERVER, OPHTHALMOLOGIC INFORMATION PROCESSING PROGRAM, AND OPHTHALMOLOGIC INFORMATION PROCESSING METHOD
An ophthalmologic information processing system for selecting a subject at risk of glaucoma as a candidate includes: an information acquisition unit that acquires measurement information of an eye of the subject measured by an ophthalmologic apparatus; and a determination unit that determines whether the subject is a candidate at risk of glaucoma based on an anterior chamber depth of the subject included in the measurement information acquired by the information acquisition unit.
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
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 3/00 - Apparatus for testing the eyes; Instruments for examining the eyes
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
G16H 50/30 - ICT specially adapted for medical diagnosis, medical simulation or medical data mining; ICT specially adapted for detecting, monitoring or modelling epidemics or pandemics for individual health risk assessment
A grade evaluation apparatus for blood vessel distribution image includes a control device. The control device is configured to: obtain a blood vessel distribution image, the blood vessel distribution image representing a distribution of blood vessels in an eyeball obtained by OCT-angiography; calculate a plurality of evaluation values from the blood vessel distribution image based on a plurality of criteria; and calculate a grade value based on the plurality of evaluation values, the grade value indicating a grade of the blood vessel distribution image.
A61B 3/10 - Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions
A61B 3/00 - Apparatus for testing the eyes; Instruments for examining the eyes
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 ophthalmic apparatus includes an objective lens, an illumination optical system, an imaging optical system, and an optical path coupling member. The illumination optical system may illuminate a subject's eye with illumination light via the objective lens. The imaging optical system may guide returning light of the illumination light from the subject's eye to an imaging device via the objective lens. The optical path coupling member has a transparent member with a reflective region formed by evaporating a reflective film onto a part of a transmission region of its surface, and is configured to couple an optical path of the illumination optical system with an optical path of the imaging optical system. The transmission region may be arranged substantially conjugate optically to a subject's iris. The illumination light is reflected on the reflective region and the returning light is transmitted through the transmission region.
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.
09 - Scientific and electric apparatus and instruments
10 - Medical apparatus and instruments
16 - Paper, cardboard and goods made from these materials
Goods & Services
Construction machines and apparatus; loading-unloading
machines and apparatus; agricultural machines and
agricultural implements, other than hand-operated; plastic
processing machines and apparatus; semiconductor
manufacturing machines. Photographic machines and apparatus; optical machines and
apparatus; measuring or testing machines and instruments;
batteries and cells; telecommunication machines and
apparatus; electronic control apparatus for machines. Esthetic massage apparatus for commercial use; medical
apparatus and instruments; electric massage apparatus for
household purposes; gloves for medical purposes; urinals for
medical purposes; bed pans; ear picks. Paper and cardboard; printed matter.
45.
METHOD OF PROCESSING OPTICAL COHERENCE TOMOGRAPHY (OCT) DATA, METHOD OF OCT IMAGING, AND OCT DATA PROCESSING APPARATUS
An OCT apparatus of an exemplary aspect includes an OCT scanner, image data generating unit, registration unit, and image data composing unit. The OCT scanner is configured to acquire three dimensional data sets by applying an OCT scan to mutually different three dimensional regions of a sample. The image data generating unit is configured to generate a plurality of pieces of image data from the three dimensional data sets. The registration unit is configured to perform a first registration between the plurality of pieces of image data by applying an image correlation calculation to each of overlap regions in the plurality of pieces of image data. The image data composing unit is configured to compose the plurality of pieces of image data based on a result of the first registration.
G06T 7/32 - Determination of transform parameters for the alignment of images, i.e. image registration using correlation-based methods
A61B 3/00 - Apparatus for testing the eyes; Instruments for examining the eyes
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
G06T 3/00 - Geometric image transformation in the plane of the image
G06T 3/20 - Linear translation of a whole image or part thereof, e.g. panning
G06T 3/60 - Rotation of a whole image or part thereof
46.
OPHTHALMIC APPARATUS, METHOD OF CONTROLLING OPHTHALMIC APPARATUS, AND RECORDING MEDIUM
An ophthalmic apparatus according to an embodiment includes an illumination system configured to project illumination light onto a subject's eye, and a photography system configured to perform photography of the subject's eye. The illumination system and the photography system are configured to satisfy a Scheimpflug condition. The illumination system includes a light source unit configured to output slit illumination light, and an illumination polarizer configured to extract an illumination polarization component from the slit illumination light. The illumination system is further configured to project the illumination polarization component onto the subject's eye. The photography system includes a photography polarizer configured to extract a photography polarization component from return light from the subject's eye with the slit illumination light projected, and an image sensor configured to detect the photography polarization component.
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.
An ophthalmic apparatus includes an optical system having an illumination and imaging optical systems, a movement mechanism, and a controller. The illumination optical system may illuminate a fundus of a subject's eye with illumination light. The movement mechanism may relatively move the subject's eye and the optical system in an optical axis direction of the imaging optical system. When a corneal curvature radius is R and a distance from a corneal apex position to an imaging aperture conjugate position substantially conjugate optically to the imaging aperture is d, the controller may control the movement mechanism so that light amount of the returning light passing through the imaging aperture becomes less than when a distance in the optical axis direction between the imaging aperture conjugate position and a position of a corneal reflection image of the illumination light is (R/2−d).
[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
51.
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.
A technique for solving problems related to intense light that is reflected back from a reflector target in laser scanning, is provided. A processing device controls laser scanning that is performed by a laser scanning apparatus having a light reception unit. The processing device includes a laser scanning apparatus controller, a saturation determination unit, and a variable optical attenuator controller. The laser scanning apparatus controller makes the laser scanning apparatus execute first laser scanning and second laser scanning. The saturation determination unit determines a state of saturation of the light reception unit, with respect to laser-scanned point clouds obtained in the first laser scanning. The variable optical attenuator controller adjusts an intensity of light to be received by the light reception unit in the second laser scanning, based on a result of determination.
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 observation apparatus of an embodiment includes an illumination system, a photography system, and a focus processor. The illumination system includes a light source configured to emit illumination light and an indicator member having a plurality of indicators, and is configured to project the illumination light onto a subject's eye via the indicator member. The photography system includes an image sensor and is configured to perform photography of the subject's eye. The focus processor is configured to perform detection of a plurality of indicator images from an image acquired by the photography system, and perform a focus control of the photography system based on the plurality of indicator images.
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
56.
OPHTHALMIC INFORMATION PROCESSING APPARATUS, OPHTHALMIC APPARATUS, OPHTHALMIC INFORMATION PROCESSING METHOD, AND RECORDING MEDIUM
An ophthalmic information processing apparatus includes an acquisition unit and a normalizer. The acquisition unit is configured to acquire eye shape data or an intraocular distance of an eye of a subject. The normalizer is configured to normalize the eye shape data or the intraocular distance based on body data of the subject or a refractive power of the eye of the subject.
A61B 3/10 - Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions
A61B 3/00 - Apparatus for testing the eyes; Instruments for examining the eyes
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 3/18 - Arrangement of plural eye-testing or -examining apparatus
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
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 embodiment is a method of processing an optical coherence tomography (OCT) image. The method is configured to acquire a plurality of images by applying a plurality of OCT scans corresponding to a plurality of different polarization conditions to a sample, and then generate a mean image with a reduced birefringence-derived artifact by applying averaging to the plurality of images corresponding to the plurality of different polarization conditions.
An ophthalmic observation apparatus of an embodiment example includes a moving image generating unit, a movement mechanism, an analyzing processor, and a first controller. The moving image generating unit is configured to generate a moving image by illuminating and photographing the subject's eye. The movement mechanism is configured to move the moving image generating unit. The analyzing processor is configured to sequentially analyze a plurality of still images included in the moving image generated by the moving image generating unit being moved by the movement mechanism to sequentially detect images of a predetermined site of the subject's eye. The first controller is configured to control the movement mechanism based on a change in a predetermined image parameter of the images sequentially detected by the analyzing processor.
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
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
59.
MYOPIA PROGRESSION ANALYSIS DEVICE, MYOPIA PROGRESSION ANALYSIS SYSTEM, MYOPIA PROGRESSION ANALYSIS METHOD, AND MYOPIA PROGRESSION ANALYSIS PROGRAM
Disclosed is a myopia progression analysis device including: an eye axial length acquisition section that acquires an eye axial length of an eye of a subject; a reference value acquisition section that acquires a numerical value related to a physical characteristic of the subject other than the eye axial length as a reference value; a relative eye axial length calculator that calculates a relative eye axial length through relativization of the eye axial length acquired by the eye axial length acquisition section using the reference value acquired by the reference value acquisition section; a population information acquisition section that acquires population information which is a set of information about relative eye axial lengths of a plurality of comparison targets to be compared with the subject; and a relative position information calculator.
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.
A full-range imaging method doubles imaging range of conventional techniques by removing mirror images of an imaged object that limit conventional images to a “half-range” and that are caused in part by the loss of phase information in a detected signal. Phase information of the detected signal is reconstructed with an averaging technique based on a modulated phase induced in the detected signal during scanning.
An ophthalmic observation apparatus of an embodiment includes a microscope, a processor, and a display controller. The microscope includes a pair of photography systems and is configured to acquire a pair of pieces of moving image data of a subject's eye. The processor is configured to perform first processing including at least one of a control of the microscope and image processing applied to at least one of the pair of pieces of moving image data, such that a predetermined parameter of the pair of pieces of moving image data satisfies a first condition. The display controller is configured to display a pair of moving images based on the pair of pieces of moving image data produced by the first processing on a display device.
An ophthalmic observation apparatus according to an embodiment example includes a moving image generating unit, an analyzing processor, and a display controller. The moving image generating unit is configured to generate a moving image by photographing a subject's eye into which an artificial object has been inserted. The analyzing processor is configured to analyze a still image included in the moving image to identify a first site image corresponding to a predetermined site of the subject's eye and a second site image corresponding to a predetermined site of the artificial object. The display controller is configured to display, on a display device, the moving image, first position information that represents a position of the first site image, and second position information that represents a position of the second site image.
An ophthalmic observation apparatus according to an embodiment example includes a moving image generating unit, an analyzing processor, a target position determining processor, and a display controller. The moving image generating unit is configured to generate a moving image by photographing the subject's eye. The analyzing processor is configured to analyze a still image included in the moving image to detect an image of a predetermined site of the subject's eye. The target position determining processor is configured to determine a target position for a predetermined treatment based at least on the image of the predetermined site detected by the analyzing processor. The display controller is configured to display, on a display device, the moving image and target position information that represents the target position.
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 ophthalmic information processing apparatus is configured to remove an artifact of an image of a subject's eye obtained using an ophthalmic apparatus. The ophthalmic information processing apparatus includes an identifying unit and a correction unit. The identifying unit is configured to identify a correction region in the image based on a dioptric power of the subject's eye. The correction unit is configured to correct a luminance in the correction region identified by the identifying unit, based on a correction amount corresponding to the dioptric power of the subject's eye.
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.
A61B 3/10 - Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions
A61B 3/00 - Apparatus for testing the eyes; Instruments for examining the eyes
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
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 ophthalmologic apparatus includes: a spectroscopic member that separates light emitted from a light source into a first spectral component and a second spectral component; an optical scanner that guides the first spectral component and the second spectral component to an observation target region of a subject's eye including a plurality of imaging target lines formed by dividing the observation target region in a scanning direction; a line exposure imaging element that includes a plurality of exposure lines capable of detecting return light from the observation target region in the light receiving region; and a controller that illuminates a region of the imaging target lines corresponding to the two or more exposure lines forming the exposure line group with the first spectral component and the second spectral component to perform focus determination based on the result of detection by the exposure lines in the exposure line group.
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 3/15 - Arrangements specially adapted for eye photography with means for aligning, spacing or blocking spurious reflection
A slit lamp microscope according to an embodiment example includes a scanner and a memory. The scanner is configured to perform application of a scan with slit light to a three dimensional region including a corner angle of a subject’s eye to collect an image group. The memory is configured to store the image group collected by the scanner.
In a surveying instrument including an instrument height measuring unit the instrument height measuring unit includes a light transmitting unit configured to emit light, a beam splitter configured to be incident with light emitted from the light transmitting unit, split the incident light into reference light and distance-measuring light, send the reference light to a reference light path, and send the distance-measuring light to a distance-measuring light path, a first light receiving unit configured to receive the reference light, a second light receiving unit configured to receive light being the distance-measuring light that has been emitted toward a position below the vertical axis of the surveying instrument main body and returned by being reflected by a distance-measuring object, and an arithmetic unit configured to calculate the instrument height based on a difference between light reception signals generated by the first light receiving unit and the second light receiving unit.
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.
An ophthalmic information processing apparatus includes a feature amount extractor and a classifier. The feature amount extractor is configured to extract a feature amount of each of two or more images different from each other of a subject’s eye. The classifier is configured to output two or more confidence score information for estimating classification result of a pathological condition of a disease of the subject’s eye, based on the feature amounts of each of the two or more images extracted by the feature amount extractor and one or more background data representing a state of the subject or a state of the subject’s eye.
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
An ophthalmologic apparatus includes an illumination system that is supported to be rotatable about a subject's eye with an irradiation direction of illumination light kept toward the subject's eye and an observation system that has a camera device and is arranged opposite to a position of the subject's eye across the illumination system. The camera device includes an imaging unit that receives reflection of the illumination light from the subject's eye and a light emitting unit for background illumination that is provided in the observation system and located below the subject's eye.
09 - Scientific and electric apparatus and instruments
10 - Medical apparatus and instruments
16 - Paper, cardboard and goods made from these materials
Goods & Services
Construction machines and apparatus; loading-unloading machines and apparatus; agricultural machines and agricultural implements, other than hand-operated; plastic processing machines and apparatus; semiconductor manufacturing machines Photographic machines and apparatus; optical machines and apparatus; measuring or testing machines and instruments; batteries and cells; telecommunication machines and apparatus; electronic control apparatus for machines Esthetic massage apparatus for commercial use; medical apparatus and instruments; electric massage apparatus for household purposes; gloves for medical purposes; urinals for medical purposes; bed pans; ear picks Paper and cardboard; printed matter
A surveying instrument capable of irradiating a spotlight as visible light for centering toward a position below a vertical axis of a surveying instrument main body is configured such that that an irradiation shape of the spotlight is a toric shape. When visible light for centering which passes through a center point of the surveying instrument and is projected on a position right below the surveying instrument is projected in a toric shape having a hole opened at a center like a donut shape, both of an inner circle and an outer circle can be recognized, so that many guides are provided, and it is easier for a worker to align the toric shape with the target point than a point shape, so that the burden of a centering work on the worker is reduced.
An ophthalmologic apparatus includes a subjective measurement optical system configured to measure a subjective refractive value of a subject eye; an objective measurement optical system configured to measure objective refractive characteristics of the subject eye; and a controller configured to control the subjective measurement optical system and the objective measurement optical system. The controller is further configured to perform measurement of the objective refractive characteristics of the subject eye by the objective measurement optical system and perform objective monitoring to monitor objective measurement information obtained by the measurement of the objective refractive characteristics during a weakest power test in which a weakest point is being obtained by the subjective measurement optical system, a maximum visual acuity value or a set predetermined visual acuity value being readable from the weakest point.
A61B 3/18 - Arrangement of plural eye-testing or -examining apparatus
A61B 3/032 - Devices for presenting test symbols or characters, e.g. test chart projectors
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 3/00 - Apparatus for testing the eyes; Instruments for examining the eyes
An ophthalmologic apparatus includes a subjective measurement optical system configured to measure a subjective refractive value of a subject eye, an objective measurement optical system configured to measure objective refractive characteristics of the subject eye, and a controller configured to control the subjective measurement optical system and the objective measurement optical system. The controller is further configured to measure the objective refractive characteristics of the subject eye by the objective measurement optical system and perform objective monitoring to monitor objective measurement information obtained by the measurement of the objective refractive characteristics during an RG test for checking whether or not corrected power is overcorrected or undercorrected by the subjective measurement optical system.
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 3/00 - Apparatus for testing the eyes; Instruments for examining the eyes
81.
MANAGEMENT SYSTEM, MANAGEMENT METHOD, AND MANAGEMENT STORAGE MEDIUM
The present invention supports a routine work related to operation of a building to be performed by a manager of the building after completion of building construction. A management system includes a completion database storing, an environment database storing, a rule database including a rule table storing, with respect to an operation rule of the building, a rule ID of the operation rule, rule attributes of the operation rule, and a rule element of the operation rule, and an object table storing the rule ID and related member attributes of a related member related to the rule ID, an operation database including an operation rule table storing the rule ID, a member list of the related member, and an operation rule element based on the rule element, and an operation rule creating unit configured to create the operation rule table.
G06F 30/13 - Architectural design, e.g. computer-aided architectural design [CAAD] related to design of buildings, bridges, landscapes, production plants or roads
G06Q 10/063 - Operations research, analysis or management
An ophthalmologic apparatus includes an optotype presentation mechanism that presents an optotype to a left subject eye and a right subject eye, and is capable of changing a brightness difference between the optotype presented to the left subject eye and the optotype presented to the right subject eye, a convergence adjustment mechanism configured to adjust a convergence distance, an eye information obtaining portion configured to obtain eye information on the left subject eye and the right subject eye, and a controller configured to control the optotype presentation mechanism, the convergence adjustment mechanism, and the eye information obtaining portion, wherein the controller sets the convergence distance to a distance different from a optotype presentation distance, gradually increases a brightness difference, and detects a visual line direction of the left subject eye and a visual line direction of the right subject eye based on the eye information.
A61B 3/032 - Devices for presenting test symbols or characters, e.g. test chart projectors
A61B 3/00 - Apparatus for testing the eyes; Instruments for examining the eyes
A61B 3/18 - Arrangement of plural eye-testing or -examining apparatus
83.
FARMING FIELD INFORMATION MANAGEMENT DEVICE, FARMING FIELD INFORMATION MANAGEMENT SYSTEM, FARMING FIELD INFORMATION MANAGEMENT METHOD, AND STORAGE MEDIUM STORING FARMING FIELD INFORMATION MANAGEMENT PROGRAM
A user terminal serving as a farming field information management device includes an imaging unit configured to capture an image, a display unit configured to display a captured image, a map information acquisition unit configured to acquire map information generated on the basis of crop-related information related to a crop in a farming field and position information indicating a growth location of the crop, a display control unit configured to allow the display unit to display the acquired map information superimposed in accordance with the imaging direction of the imaging unit on the captured image, and a data correction unit configured to correct the map information on the basis of the map information and the captured image displayed on the display unit.
WORK RESULT INFORMATION ACQUISITION DEVICE, WORK RESULT INFORMATION ACQUISITION SYSTEM, CONTROL METHOD OF WORK RESULT INFORMATION ACQUISITION DEVICE, AND CONTROL PROGRAM OF WORK RESULT INFORMATION ACQUISITION DEVICE
There is provided a work result information acquisition device or the like capable of acquiring work result information automatically and accurately. The work result information acquisition device includes a tracking part which tracks a movable body, a scanning part which acquires three-dimensional point cloud information on an object, a movable body movement information acquisition part which acquires movable body movement information, which is movement information of the movable body by tracking, by the tracking part and stores the movable body movement information, and a work area information generation part which generates work area information on the object, based on the movable body movement information, and three-dimensional work result information of the work area information is generated by scanning, based on the work area information.
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).
In a surveying instrument including an instrument height measuring unit configured to make a distance measurement by emitting distance-measuring light to a distance-measuring object below a vertical axis of a surveying instrument main body, and an arithmetic unit configured to calculate a distance to the distance-measuring object by analyzing light being the distance-measuring light that has returned by being reflected by the distance-measuring object, and calculate an instrument height, the instrument height measuring unit is configured to make a distance measurement by irradiating the distance-measuring light toward a predetermined region of the distance-measuring object centered on a point below the vertical axis of the surveying instrument main body, and the arithmetic unit is configured to calculate the instrument height by operating an average value of distance-measurement values in the region. By calculating an average value of results of distance measurements of a predetermined region, the measurement accuracy can be improved.
An ophthalmologic apparatus includes an objective measurement optical system that is configured to objectively measure eye characteristics of a subject eye; an optotype projection system that is configured to present a fixation target to the subject eye at a predetermined presentation position and apply fog to the subject eye; and a controller that is configured to control the objective measurement optical system and optotype projection system. The controller is further configured to objectively measure the eye characteristics over time by changing a presentation position of the fixation target from the predetermined presentation position in a direction to increase an amount of fog and presenting the fixation target.
A61B 3/00 - Apparatus for testing the eyes; Instruments for examining the eyes
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
89.
MANAGEMENT SYSTEM, MANAGEMENT METHOD, AND MANAGEMENT STORAGE MEDIUM
A management system includes a completion database storing, with respect to a completion member of a building, at least a member ID and member coordinates, an environment database storing, with respect to environment conditions of the building including the completion member after completion or an object related to the completion member, at least an environment acquisition result ID and environment acquisition coordinates, an operation model creating unit configured to extract, as an operation member, the completion member related to the environment conditions acquired, and create an operation model of the operation member, and an operation database in which, with respect to the operation member, an operation member ID, the member ID, operation member coordinates, and an operation member shape are stored based on the operation model.
G06F 30/13 - Architectural design, e.g. computer-aided architectural design [CAAD] related to design of buildings, bridges, landscapes, production plants or roads
90.
LASER SCANNING METHOD, LASER SCANNING SYSTEM, AND LASER SCANNING PROGRAM
Construction management and control of construction machines are efficiently performed at civil engineering sites. A laser scanning method includes a first laser scanning and a second laser scanning. The first laser scanning is performed on a blade of a construction machine by a laser scanning apparatus. The second laser scanning is performed on an area in which the construction machine has operated, by the laser scanning apparatus. The first laser scanning is performed at a frequency higher than a frequency of the second laser scanning.
Effects of multiple reflections in distance measurement using a laser are reduced. A surveying method for measuring a distance to a reflection point that reflects distance measuring light, based on emission and reception of the distance measuring light, includes assuming that a symbol “K” represents a natural number, excluding zero, and determining whether a beam that is received after the (K+1)th light emission is a repeatedly reflected beam of light that has been emitted before the (K+1)th light emission. The beam that is received, after the (K+1)th light emission, at a time corresponding to a period based on a time interval from light emission at or before the Kth light emission until first reception of a beam related to the light emission at or before the Kth light emission, is determined as being the repeatedly reflected beam.
POINT CLOUD INFORMATION GENERATING SYSTEM, CONTROL METHOD OF POINT CLOUD INFORMATION GENERATING SYSTEM, AND CONTROL PROGRAM OF POINT CLOUD INFORMATION GENERATING SYSTEM
A point cloud information generating system or the like is provided that can easily and speedily generate point cloud information regarding a desired object. The point cloud information generating system includes a point cloud information generating device that generates three-dimensional point cloud information on an object, and a XR generating device that is wearable by a user. The XR generating device includes an image-capturing part that acquires image-capturing information in accordance with at least a line of sight of the user, and a display part that displays the image-capturing information. Three-dimensional point cloud information is generated, on the basis of execution instruction information regarding the object displayed on the display part, for the object specified by the point cloud information generating device in the execution instruction information.
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
97.
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).
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.
G06T 7/30 - Determination of transform parameters for the alignment of images, i.e. image registration
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
A slit lamp microscope of an embodiment includes an image acquiring unit, a memory, and a misalignment information acquiring processor. The image acquiring unit is configured to acquire an image by applying a scan with slit light to an anterior segment of a subject's eye. The memory stores a first image of the anterior segment and a second image that is acquired by follow-up photography performed by the image acquiring unit with reference to the first image. The misalignment information acquiring processor is configured to acquire misalignment information between the first image and the second image by analyzing the first image and the second image after the follow-up photography.
A61B 3/14 - Arrangements specially adapted for eye photography
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
G02B 21/36 - Microscopes arranged for photographic purposes or projection purposes
