대한전자공학회:학술대회논문집 (Proceedings of the IEEK Conference)
- 대한전자공학회 2004년도 ICEIC The International Conference on Electronics Informations and Communications
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- Pages.137-142
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- 2004
Generation of Fixed Spectral Basis for Three-Dimensional Mesh Coding Using Dual Graph
- Kim Sung-Yeol (Gwangju Institute of Science and Technology (GIST)) ;
- Yoon Seung-Uk (Gwangju Institute of Science and Technology (GIST)) ;
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Ho Yo-Sung
(Gwangju Institute of Science and Technology (GIST))
- 발행 : 2004.08.01
초록
In this paper, we propose a new scheme for geometry coding of three-dimensional (3-D) mesh models using a fixed spectral basis. In order to code the mesh geometry information, we generate a fixed spectral basis using the dual graph derived from the 3-D mesh topology. After we partition a 3-D mesh model into several independent sub-meshes to reduce coding complexity, the mesh geometry information is projected onto the generated orthonormal bases which are the eigenvectors of the Laplacian matrix of the 3-D mesh. Finally, spectral coefficients are coded by a quantizer and a variable length coder. The proposed scheme can not only overcome difficulty of generating a fixed spectral basis, but also reduce coding complexity. Moreover, we can provide an efficient multi-resolution representation of 3-D meshes.