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Volume 19 Issue 5
September  2004
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Kun Zhou, Hu-Jun Bao, Jiao-Ying Shi, Qun-Sheng Peng. Geometric Signal Compression[J]. Journal of Computer Science and Technology, 2004, 19(5).
Citation: Kun Zhou, Hu-Jun Bao, Jiao-Ying Shi, Qun-Sheng Peng. Geometric Signal Compression[J]. Journal of Computer Science and Technology, 2004, 19(5).
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Geometric Signal Compression

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  • Published Date: September 14, 2004
    Abstract
  • Compression of mesh attributes becomes a challenging problem due to the great need for efficient storage and fast transmission. This paper presents a novel geometric signal compression framework for all mesh attributes, including position coordinates, normal, color, texture, etc. Within this framework, mesh attributes are regarded as geometric signals defined on mesh surfaces. A planar parameterization algorithm is first proposed to map 3D meshes to 2D parametric meshes. Geometric signals are then transformed into 2D signals, which are sampled into 2D regular signals using an adaptive sampling method. The JPEG2000 standard for still image compression is employed to effectively encode these regular signals into compact bit-streams with high rate/distortion ratios. Experimental results demonstrate the great application potentials of this framework.
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