Real-time object correspondence in stereo camera system

In this paper, we address the problem of object correspondence construction in stereo camera systems by using a real-time algorithm adopting reverse stereo triangulation. This algorithm is based on a belief that any incorrect object-pair will eventually demonstrate inconsistency in its spatial location calculated from stereo triangulation, so that correct object-pairs can be identified from all possible object-pairs. We present experimental results from a dual camera human face capturing system in which more than 99% object correspondences can be accurately identified, while 100% of falsely detected objects are eliminated. Besides, our proposed method can handle no less than 100 object-pairs within 1 ms in a P4 1.5 GHz desktop PC.