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Title:
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Geometry Compression of Normal Meshes using Rate-Distortion Algorithms |
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Author:
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Lavu, Sridhar; Choi, Hyeokho; Baraniuk, Richard G.
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Type:
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Conference Paper |
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Keywords:
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Normal meshes; estimation-qunatization; geometry compression |
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Citation:
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S. Lavu, H. Choi and R. G. Baraniuk,"Geometry Compression of Normal Meshes using Rate-Distortion Algorithms," in Eurographics Symposium on Geometry Processing, |
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Abstract:
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We propose a new rate-distortion based algorithm for compressing 3D surface geometry represented using triangular normal meshes. We apply the Estimation-Quantization (EQ) algorithm to compress normal mesh wavelet coefficients. The EQ algorithm models the wavelet coefficients as a Gaussian random field with slowly varying standard deviation that depends on the local neighborhood and uses rate-distortion optimal scalar quantizers. We achieve gains of 0.5 to 1 dB with the EQ algorithm compared to the recently proposed zerotree compression for normal meshes. |
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Date Published:
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2003-06-01 |
