Abrégé

There are described a method and a system for generating clusters of ballistic specimens. Using an image acquisition tool, topographic data for at least three ballistic specimens of at least one region of interest is acquired. From the topographic data, at least one parameter characterizing optimal toolmark alignment is determined for every distinct pair of the at least three ballistic specimens, each ballistic specimen having a plurality of toolmarks formed thereon. From the topographic data, at least one pairwise similarity score associated with optimal toolmark alignment is determined for every distinct pair of the at least three ballistic specimens. At least one triplet-wise consistency measure indicative of a consistency of optimal toolmark alignment is determined for every distinct triplet of the at least three ballistic specimens. A cluster analysis is conducted based on the at least one similarity score and the at least one consistency measure to generate the clusters.

Classes IPC  ?

• F42B 35/00 - Test ou vérification des munitions
• G06V 10/762 - Dispositions pour la reconnaissance ou la compréhension d’images ou de vidéos utilisant la reconnaissance de formes ou l’apprentissage automatique utilisant le regroupement, p.ex. de visages similaires sur les réseaux sociaux

Abrégé

A lighting system for a camera, has: a light board having a central axis, the light board having fingers circumferentially distributed about the central axis, the light board having a concave side, a finger of the fingers extending along a finger axis from a proximal end to a distal end and includes sections distributed along the finger axis from the proximal end to the distal end, a section of the sections pivotable relative to a remainder of the fingers; light sources secured on the fingers on the concave side of the light board, the light sources located on respective sections of the sections; and a controller operatively connected to each of the light sources and operable to independently control each of the light sources

Classes IPC  ?

• G03B 15/02 - Eclairage de la scène
• H04N 23/56 - Caméras ou modules de caméras comprenant des capteurs d'images électroniques; Leur commande munis de moyens d'éclairage

Abrégé

A camera support system for a high-definition camera, comprising: a base; a camera support disposed over the base; at least one damper operatively connected to the base and to the camera support and operable to dampen movements between the camera support and the base; a locking system operable to lock the camera support in relationship to the base, the locking system having a first member mounted to the base and a second member mounted to the camera support, the first member movable relative to the second member, the first member and the second member matingly engageable to one another, the locking system having a locked configuration in which the first member is engaged to the second member and in which movements of the camera support are blocked, and an unlocked configuration in which the first member is disengaged from the second member and in which the camera support is movable.

Classes IPC  ?

• G03B 17/56 - Accessoires
• F16C 11/10 - Dispositions pour le verrouillage
• F16D 71/00 - Mécanismes pour amener les organes rotatifs dans une position prédéterminée de repos
• F16F 9/56 - Moyens pour régler la longueur du ressort ou de l'amortisseur, ou pour les bloquer, p.ex. en fin de course
• F16M 11/02 - Têtes des supports

Abrégé

There are described methods and system for determining a similarity or distance measure between a first ballistic specimen and a second ballistic specimen. The method comprises acquiring topographic data from the first ballistic specimen and the second ballistic specimen of at least one region of interest; computing from the topographic data at least one similarity score s for the first ballistic specimen and the second ballistic specimen; determining a non-match probability measure of the similarity score for at least one parameter characterizing a macroscopic and/or microscopic feature of the topographic data, the non-match probability measure associating the first ballistic specimen and the second ballistic specimen to a different source; and correcting the similarity score by determining a corrected similarity score that yields a same value of the non-match probability measure as the similarity score for a reference value of the at least one parameter.

Classes IPC  ?

• G01B 21/20 - Dispositions pour la mesure ou leurs détails, où la technique de mesure n'est pas couverte par les autres groupes de la présente sous-classe, est non spécifiée ou est non significative pour mesurer des contours ou des courbes, p.ex. pour déterminer un profil
• F42B 35/00 - Test ou vérification des munitions

Abrégé

A bullet compressing device for creating marks imparted by a barrel of a gun on a bullet, has: a first member; a second member spaced from the first member by a gap, a dimension of the gap selected to correspond to at least a length of the bullet, the first and second members slidingly receivable within the barrel of the gun; a biasing member in engagement with the first and second members, the biasing member having a compressed configuration in which the first and second members are biased toward one another thereby decreasing the dimension of the gap, one of the first and second members engageable by an actuator, the first and second members and the bullet received therebetween movable relative to the barrel thereby imparting marks on the bullet by the barrel upon actuation of the actuator

Classes IPC  ?

• G01N 3/46 - Recherche de la dureté ou de la dureté au rebondissement en effectuant des empreintes sous une charge permanente par des dispositifs de pénétration, p.ex. sphère, pyramide les dispositifs de pénétration effectuant un mouvement de rayage
• F41A 31/00 - Dispositions pour test

Abrégé

The present disclosure provides devices, systems, and methods for aligning and securing a projectile. A base defining a receptacle for receiving the projectile comprises a self-centering mechanism for aligning a longitudinal axis of the projectile with a reference axis. An upstanding support projects upwardly from the base. A head member extends from the upstanding support, disposed vertically above the base, and has defined therein an opening aligned with the reference axis. A rod member is slidably mounted in the opening, such that a longitudinal axis of the rod member is aligned with the reference axis. A mounting adapter has a first end configured for adhesively retaining the projectile and a second end defining a coupling mechanism selectively mateable with a distal end of the rod member and with an inspection device used for performing inspection of the projectile.

Classes IPC  ?

• G01N 21/95 - Recherche de la présence de criques, de défauts ou de souillures caractérisée par le matériau ou la forme de l'objet à analyser
• F42B 35/00 - Test ou vérification des munitions

Abrégé

Detection of surface irregularities in coins. Three-dimensional topographic data of at least one surface of a coin, having at least one feature, is acquired and used to determine characteristics of the coin features, based on vector components of normal vectors at various points on the surface of the coin. The feature characteristics are then compared to reference feature characteristics. Based on this comparison, an irregularity indication is provided if differences between the feature characteristics and the reference characteristics are found.

Classes IPC  ?

• G07D 5/00 - Vérification spécialement adaptée à la détermination de l'identité ou de l'authenticité des pièces de monnaie, p.ex. pour séparer les pièces qui ne peuvent pas être acceptées ou qui sont en monnaie étrangère
• G06T 7/62 - Analyse des attributs géométriques de la superficie, du périmètre, du diamètre ou du volume