期刊
COMPUTER VISION AND IMAGE UNDERSTANDING
卷 89, 期 2-3, 页码 197-225出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/S1077-3142(03)00003-1
关键词
deformable templates; appearance models; region tracking; robust estimation; image registration
A region-based approach to nonrigid motion tracking is described. Shape is defined in terms of a deformable triangular mesh that captures object shape plus a color texture map that captures object appearance. Photometric variations are also modeled. Nonrigid shape registration and motion tracking are achieved by posing the problem as an energy-based, robust minimization procedure. The approach provides robustness to occlusions, wrinkles, shadows, and specular highlights. The formulation is tailored to take advantage of texture mapping hardware available in many workstations, PCs, and game consoles. This enables nonrigid tracking at speeds approaching video rate. (C) 2003 Elsevier Science (USA). All rights reserved.
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