Robust tracking of cyclic nonrigid motion

Cheng Chang, R. Ansari, A. Khokhar
Proceedings 2003 International Conference on Image Processing (Cat. No.03CH37429)  
Cyclic motion underlies several human activities including exercising,running, and walking. Accurate tracking of such motion in video data helps in developing computer-aided applications such as gait analysis, person identification, patient rehabilitation, etc. This paper presents a set of novel techniques for tracking cyclic human motion based on decomposing complex cyclic motion into simpler motion components and introducing phase coupling between the components. The intensity of coupling is
more » ... ity of coupling is adaptively adjusted during tracking such that a strong coupling is triggered when self-occlusion occurs. In our experiments we use sequential Monte Carlo methods for tracking a walking human. We show that this adaptive phase coupling of component motions handles occlusion and self-occlusion with significantly improved accuracy while avoiding the limitations caused by a poorly trained dynamic model.
doi:10.1109/icip.2003.1247250 dblp:conf/icip/ChangAK03 fatcat:vcdjsujyojfwteo66jbjdk7xoi