Patent attributes
A tracking system includes a processor, a controller, two or more light sources and a dynamic vision sensor (DVS). The light sources are of known configuration with respect to each other the controller and turn on and off in a predetermined sequence. The DVS includes an array of light-sensitive elements of known configuration. The DVS outputs signals corresponding to events at corresponding light-sensitive elements in the array in response to changes in light from the light sources. The signals indicate times of the events and locations of the corresponding light-sensitive elements. The processor determines an association between each event and one or more of the light sources and, from that association, determines an occlusion of one or more of the light sources. The processor estimates a location of an object using the determined occlusion, the known light source configuration, and the locations of the corresponding light-sensitive elements in the array.
