Geometry Compression of Normal Meshes Using Rate-Distortion Algorithms

Lavu, Sridhar; Choi, Hyeokho; Baraniuk, Richard

Geometry Compression of Normal Meshes Using Rate-Distortion Algorithms

Files

052-061.pdf (292.86 KB)

Date

2003

Authors

Lavu, Sridhar
Choi, Hyeokho
Baraniuk, Richard

Publisher

The Eurographics Association

Abstract

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.

        @inproceedings{:10.2312/SGP/SGP03/052-061
,
booktitle = {Eurographics Symposium on Geometry Processing
},
editor = {Leif Kobbelt and Peter Schroeder and Hugues Hoppe
},
title = {{Geometry Compression of Normal Meshes Using Rate-Distortion Algorithms
}},
author = {Lavu, Sridhar and 
Choi, Hyeokho and 
Baraniuk, Richard
},
year = {2003
},
publisher = {The Eurographics Association
},
ISSN = {1727-8384
},
ISBN = {3-905673-06-1
},
DOI = {/10.2312/SGP/SGP03/052-061
}
}