Patent ID: 6263088
Filing Date: 2001-07-17
Classification: G01S,G06K,G06T,G08B

Abstract:
A method for tracking movement of objects in a scene from a stream of video frames, each video frame comprising image information of the scene at an instant of time, the method comprising steps of:(a) generating from the image information region clusters which are hypotheses of objects to be tracked in the scene, wherein multiple region clusters are generated for each object to be tracked in the scene so as to provide multiple candidates of the same object;(b) generating a confidence value for each region that represents a likelihood that the region cluster represents an object to be tracked, determining a correspondence between region clusters in consecutive video frames; and(c) constructing tracks of objects through the scene over time based upon the correspondence determined between region clusters in consecutive video frames, wherein multiple tracks are constructed for each object based on correspondence between video frames determined for each of the plurality of region clusters associated with each object to be tracked.