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Proceedings Paper

Recovering the tracked object shape by dual-region growing
Author(s): Jean Gao; Akio Kosaka
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Paper Abstract

For the majority of object tracking scenario, the emphasis has been put on achieving robust motion estimation under different situations. In this paper, besides introducing a multiple frame based 3D motion estimation to handle the partial occlusion problem, we present an object shape delineation scheme by dual region growing. As it is well-known, the problem of shape extraction of a moving object undergoing self-occlusion is highly ill-posed. Approaches have been proposed by assuming the similarity of object pixels in the vicinities of the boundaries between the current frame and the previous one. Such an assumption is usually broken down when occlusion occurs; instead, our implementation is based on a stronger assumption. The system consists of (i) a multi-frame motion estimation, (ii) dual-region growing, and (iii) boundary points arbitration. This method is shown to recover favorable object shape during the tracking process.

Paper Details

Date Published: 7 May 2003
PDF: 11 pages
Proc. SPIE 5022, Image and Video Communications and Processing 2003, (7 May 2003); doi: 10.1117/12.476703
Show Author Affiliations
Jean Gao, Purdue Univ. (United States)
Akio Kosaka, Purdue Univ. (United States)

Published in SPIE Proceedings Vol. 5022:
Image and Video Communications and Processing 2003
Bhaskaran Vasudev; T. Russell Hsing; Andrew G. Tescher; Touradj Ebrahimi, Editor(s)

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