Abstract:
La présente invention concerne un procédé de traitement d'un signal asynchrone produit par un capteur de lumière, le capteur ayant une matrice de pixels disposée en regard d'une scène, le procédé comprenant : - recevoir du capteur de lumière le signal asynchrone (500) comprenant, pour chaque pixel de la matrice, des événements successifs issus dudit pixel; - analyser (501 ) le signal asynchrone à l'aide de profils d'activité au fur et à mesure de la réception d'événements dans le signal asynchrone. Le profil d'activité comprend au moins, pour chaque pixel (p) du capteur, une valeur d'activité (5(p)) qui décroît en fonction du temps (t) écoulé depuis un événement le plus récent (310, 31 1, 312, 313, 314, 320, 321, 322) parmi les événements successifs issus dudit pixel.
Abstract:
Systems, apparatuses, and methods are provided for determining the geographic location of an end- user device (e.g., vehicle, mobile phone, smart watch, etc.). An end-user device may collect a depth map at a location in a path network. Feature geometries may be obtained from a fingerprint database in proximity to the location in the path network. The depth map may be oriented with the feature geometries of the fingerprint. Control points from an extracted feature geometry in the depth map may be compared with control points within the fingerprint. Match rates may be calculated based on the comparison, and a geographic location of the end-user device may be determined when an overall match rate exceeds a minimum threshold value.
Abstract:
A method of generating video data on a portable electronic device, the method including steps of: the portable electronic device accessing pre-generated data representing a pre-generated video synchronized with pre-generated audio; the portable electronic device accessing user-generated content (UGC) data representing a user-generated photo or video generated by a camera of the portable electronic device; and the portable electronic device generating combined data representing a combined video that includes a portion of each of the pre-generated video, and the user-generated photo or video.
Abstract:
A monitoring system is disclosed. The system comprises a range detection system, configured for scanning a scene to provide range data arranged gridwise over a plurality of picture elements, and a data processing system configured for processing the range data to monitor hygienic activity, preferably hand hygienic activity, of an individual in the scene. Preferably, the picture elements are devoid of any color data and any grayscale data. In some embodiments of the present invention the data processing system identifies one or more of the moments for hand hygiene as defined by the World Health Organization, and monitors the hygienic activity in relation to these five moments.
Abstract:
In a sequence of images of a scene acquired by a stationary camera, objects are detected and tracked by determining a first set of candidate foreground regions according to a background model. A second set of candidate foreground regions is determined according to a set of foreground models. Then, candidate foreground regions in the first set and the second set are validated to produce a final set of foreground regions in the image that include the objects.
Abstract:
A method in a radio communications network is described of using image data for positioning a first wireless device. The method comprises obtaining image data comprising at least two image objects and an angle between lines formed between each of the objects and a reference point. The method further comprises extracting the at least two image objects from the obtained image data, determining, from the obtained image data, the angle between the lines formed between each of the objects and the reference point, and using the at least two image objects and/or the image data for positioning the first wireless device based on the determined angle. The method is performed by at least one of: a network node, the first wireless device, a camera device, a second wireless device, an image processing node and a server, each operating in the radio communications network.