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Proceedings Paper

Generation and tracking of mesh objects in image sequences
Author(s): JuiTai Ko; Bih-Wei Shyr; Sheng-Jyh Wang
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Paper Abstract

In this paper, we propose a new scheme that could automatically generate a hierarchical mesh structure for a real image and then use a nodal block matching to track this mesh structure in an image sequence. First, a three-layer pyramid is built by using a multi-resolution approach. For each layer, after extracting the high-curvature features, a linking procedure and a splitting process are applied to generate a compact set of representative points. By adopting the constrained Delaunay triangulation algorithm, the selected points can be triangulated into meshes. Starting from the coarsest layer to the finest layer, we further eliminate the duplicate nodes and then form a hierarchical mesh structure. Based on the hierarchical mesh structure and the intensity value at the mesh nodes and, we can progressively reconstruct an image with simple linear interpolation. Moreover, the motion of a mesh is tracked using a coarse-to-fine approach to lower the computational complexity.

Paper Details

Date Published: 19 April 2000
PDF: 9 pages
Proc. SPIE 3974, Image and Video Communications and Processing 2000, (19 April 2000); doi: 10.1117/12.382991
Show Author Affiliations
JuiTai Ko, National Chiao Tung Univ. (Taiwan)
Bih-Wei Shyr, National Chiao Tung Univ. (Taiwan)
Sheng-Jyh Wang, National Chiao Tung Univ. (Taiwan)

Published in SPIE Proceedings Vol. 3974:
Image and Video Communications and Processing 2000
Bhaskaran Vasudev; T. Russell Hsing; Andrew G. Tescher; Robert L. Stevenson, Editor(s)

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