A 3-D Mesh Sequence Coding Using the Combination of Spatial and Temporal Wavelet Analysis
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- 作者：Jae-Won Cho ; Min-Su Kim ; S茅bastien Valette ; Ho-Youl Jung ; R茅my Prost
- 关键词：3D mesh sequence ; lossless compression ; lossy compression ; progressive transmission ; multi ; resolution representation ; irregular mesh ; temporal wavelet analysis ; spatial wavelet analysis
- 刊名：Lecture Notes in Computer Science
- 出版时间：2007
- 出版年：2007
- 期刊代码：99_0302-9743
- 类别：cp
- 卷：4418
- 期：1
- 页码：389-399
- 数据来源：sp
摘要
In this paper, we present a wavelet-based progressive compression method for isomorphic 3-D mesh sequence with constant connectivity. Our method reduces the spatial and temporal redundancy by using both spatial and temporal wavelet analysis. To encode geometry information, each mesh frame is decomposed into a base mesh and its spatial wavelet coefficients of each resolution level by spatial wavelet analysis filter bank. The spatially transformed sequence is decomposed into several sub-band signals by temporal wavelet analysis filter bank. The resulting signal is encoded by using an arithmetic coder. Since an isomorphic mesh sequence has the same connectivity over all frames, the connectivity information is encoded only for the first mesh frame. The proposed method enables both progressive representation and lossless compression in a single framework by multi-resolution wavelet analysis with a perfect reconstruction filter bank. Our method is compared with several conventional techniques including our previous work.