Title :
Connected vibrations method for non-rigid motion tracking
Author :
Tao, Hai ; Huang, Thomas S.
Author_Institution :
Beckman Inst. for Adv. Sci. & Technol., Illinois Univ., Urbana, IL, USA
Abstract :
This paper introduces a new algorithm for tracking non-rigid motion in image sequences. Non-rigid motions are modelled as the deformations of connected 2D membrane patches. Local smoothness constraints for each patch are the low-frequency vibration modes obtained from modal analysis. Hinges are imposed between patches to maintain the global topological structure. The resulted over-constrained linear system is solved efficiently using a least square estimator. Promising results on both natural and synthetic facial motion sequences are demonstrated in this paper
Keywords :
face recognition; finite element analysis; image sequences; modal analysis; motion estimation; optical tracking; topology; 2D membrane patches; connected vibrations method; deformations; facial motion sequences; finite element analysis; image sequences; least square estimator; linear system; modal analysis; nonrigid motion tracking; smoothness constraints; topological structure; Biomembranes; Fasteners; Image analysis; Image motion analysis; Image sequence analysis; Image sequences; Linear systems; Modal analysis; Solid modeling; Tracking;
Conference_Titel :
Pattern Recognition, 1998. Proceedings. Fourteenth International Conference on
Conference_Location :
Brisbane, Qld.
Print_ISBN :
0-8186-8512-3
DOI :
10.1109/ICPR.1998.711970