Bit Allocation for Spatio-temporal Wavelet Coding of Animated Semi-regular Meshes
MMM '09 Proceedings of the 15th International Multimedia Modeling Conference on Advances in Multimedia Modeling
SNR and temporal scalable coding of 3-D mesh sequences using singular value decomposition
Journal of Visual Communication and Image Representation
The alpha parallelogram predictor: A lossless compression method for motion capture data
Information Sciences: an International Journal
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We propose an algorithm that represents three-dimensional dynamic objects with a semi-regular mesh sequence and compresses the sequence using the spatiotemporal wavelet transform. Given an irregular mesh sequence, we construct a semi-regular mesh structure for the first frame and then map it to subsequent frames based on the hierarchical motion estimation. The regular structure of the resulting mesh sequence facilitates the application of advanced coding schemes and other signal processing techniques. To encode the mesh sequence compactly, we develop an embedded coding scheme, which supports signal-to-noise ratio and temporal scalability modes. Simulation results demonstrate that the proposed algorithm provides significantly better compression performance than the static mesh coder, which encodes each frame independently