Proceedings of the IEEK Conference (대한전자공학회:학술대회논문집)
- summer
- /
- Pages.137-142
- /
- 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)) ;
- Ho Yo-Sung (Gwangju Institute of Science and Technology (GIST))
- Published : 2004.08.01
Abstract
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.