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Recovery of non-rigid motion and structure
Horowitz, B. Pentland, A.
Media Lab., MIT, Cambridge, MA;

This paper appears in: Computer Vision and Pattern Recognition, 1991. Proceedings CVPR '91., IEEE Computer Society Conference on
Publication Date: 3-6 Jun 1991
On page(s): 325-330
Meeting Date: 06/03/1991 - 06/06/1991
Location: Maui, HI, USA
ISBN: 0-8186-2148-6
References Cited: 14
INSPEC Accession Number: 4132444
Digital Object Identifier: 10.1109/CVPR.1991.139710
Current Version Published: 2002-08-06

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

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