Estimation-Quantization Geometry Coding Using Normal Meshes

We propose a new algorithm for compressing three-dimensional triangular mesh data used for representing surfaces. We apply the EstimationQuantization (EQ) algorithm originally designed for still image compression to the normal mesh wavelet coefficients. The EQ algorithm models the wavelet coefficients as a Gaussian random field with slowly varying standard deviation. By designing the quantizers in a rate-distortion optimal fashion, we improve upon the recently proposed zerotree normal mesh compression algorithm by 0.5 to 1 dB in distortion.

• Type: Conference
• Year: 2003
• Where: DCC
• Authors: Sridhar Lavu, Hyeokho Choi, Richard G. Baraniuk
• Keywords: Computer Graphics, DCC 2003, EQ Algorithm, Mesh Compression Algorithm, Mesh Wavelet Coefficients