Title :
Adaptive-size physically-based models for nonrigid motion analysis
Author :
Huang, Wen-Chen ; Goldgof, Dmitry B.
Author_Institution :
Dept. of Comput. Sci. & Eng., Univ. of South Florida, Tampa, FL, USA
Abstract :
Adaptive-size physically based models suitable for nonrigid motion analysis are presented. The mesh size increases or decreases dynamically during the surface reconstruction process to locate nodes near surface areas of interests (like high curvature points) and to optimize the fitting error. A priori information about nonrigidity can be included so that the surface model deforms to fit moving data points while preserving some basic nonrigid constraints (e.g. isometry or conformality). Implementation of the proposed algorithm with and without isometric/conformal constraints is presented. Performance and accuracy of derived algorithms are demonstrated on data simulating deforming ellipsoidal and bending planar shapes. The algorithm is applied to the real range data for bending paper and to volumetric temporal left ventricular data
Keywords :
computer vision; curve fitting; image reconstruction; bending paper; left ventricular data; mesh size; nonrigid motion analysis; nonrigidity; physically based models; surface model; surface reconstruction; Application software; Computer science; Computer vision; Curve fitting; Deformable models; Mesh generation; Motion analysis; Shape; Surface fitting; Surface reconstruction;
Conference_Titel :
Computer Vision and Pattern Recognition, 1992. Proceedings CVPR '92., 1992 IEEE Computer Society Conference on
Conference_Location :
Champaign, IL
Print_ISBN :
0-8186-2855-3
DOI :
10.1109/CVPR.1992.223246