Carnegie Mellon University
Singularity Analysis for Articulated Object Tracking

Daniel D. Morris and Jim Rehg
Proceedings of CVPR '98, pp. 289 - 296, June, 1998.

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We analyze the use of kinematic constraints for articulated object tracking. Conditions for the occurrence of singularities in 3-D models are presented and their effects on tracking are characterized. We describe a novel 2-D Scaled Prismatic Model (SPM) for figure registration. In contrast to 3-D kinematic models, the SPM has fewer singularity problems and does not require detailed knowledge of the 3-D kinematics. We fully characterize the singularities in the SPM and illustrate tracking through singularities using synthetic and real examples with 3-D and 2-D models. Our results demonstrate the significant benefits of the SPM in tracking with a single source of video.

Associated Project(s): Articulated Motion Tracking
Number of pages: 8

Text Reference
Daniel D. Morris and Jim Rehg, "Singularity Analysis for Articulated Object Tracking," Proceedings of CVPR '98, pp. 289 - 296, June, 1998.

BibTeX Reference
   author = "Daniel D. Morris and Jim Rehg",
   title = "Singularity Analysis for Articulated Object Tracking",
   journal = "Proceedings of CVPR '98",
   pages = "289 - 296",
   month = "June",
   year = "1998",