Title :
Recovery of non-rigid motion and structure
Author :
Horowitz, Bradley ; Pentland, Alex
Author_Institution :
Media Lab., MIT, Cambridge, MA, USA
Abstract :
The elastic properties of real materials provide constraint on the types of non-rigid motion that can occur, and thus allow overconstrained estimates of 3-D non-rigid motion from optical flow data. It is shown that by modeling and simulating the physics of non-rigid motion it is possible to obtain good estimates of both object shape and velocity. Examples using grey-scale and X-ray imagery are presented, including an example of tracking a complex articulated figure
Keywords :
computerised picture processing; computerised tomography; X-ray imagery; complex articulated figure; elastic properties; grey-scale; nonrigid motion recovery; object shape; optical flow data; overconstrained estimates; velocity; Finite element methods; Fourier transforms; Image motion analysis; Motion analysis; Motion estimation; Optical materials; Physics; Shape; Tracking; X-ray imaging;
Conference_Titel :
Computer Vision and Pattern Recognition, 1991. Proceedings CVPR '91., IEEE Computer Society Conference on
Conference_Location :
Maui, HI
Print_ISBN :
0-8186-2148-6
DOI :
10.1109/CVPR.1991.139710
