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A dual graph approach to 3D triangular mesh compression

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2 Author(s)
Jiankun Li ; Integrated Media Syst. Center, Univ. of Southern California, Los Angeles, CA, USA ; Kuo, C.-C.J.

The triangular mesh provides one of the most popular representations for 3D graphic models. A typical triangular mesh consists of two different types of data: topological data which specify the connectivity of the mesh and geometrical data which describe information associated with each individual vertex or triangle. We propose a new compression scheme which encode topological data by using the dual graph of the original mesh. It is found that the dual graph can be represented as a degraded binary tree. Furthermore, geometrical data can be coded progressively with local prediction and embedded entropy coding. Experimental results show that an acceptable quality level can be reached at a compression ratio of 60 to 1 for general test models

Published in:

Image Processing, 1998. ICIP 98. Proceedings. 1998 International Conference on  (Volume:2 )

Date of Conference:

4-7 Oct 1998