Predictive Geometry Compression of 3-D Mesh Models Using a Joint Prediction

Jeong-Hwan AHN  Yo-Sung HO  

IEICE TRANSACTIONS on Communications   Vol.E85-B    No.12    pp.2966-2970
Publication Date: 2002/12/01
Online ISSN: 
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Multimedia Systems
geometry compression,  3-D mesh,  VRML,  joint prediction,  vertex data,  

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In this letter, we address geometry coding of 3-D mesh models. Using a joint prediction, the encoder predicts vertex positions in the layer traversal order. After we apply the joint prediction algorithm to eliminate redundancy among vertex positions using both position and angle values of neighboring triangles, we encode those prediction errors using a uniform quantizer and an entropy coder. The proposed scheme demonstrates improved coding efficiency for various VRML test data.