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Proceedings Paper

Spectral coding of mesh geometry with a hierarchical set partitioning algorithm
Author(s): Umut Konur; Ulug Bayazit; Hasan F. Ates; Fikret S. Gürgen
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Paper Abstract

We propose a progressive mesh geometry coder, which expresses geometry information in terms of spectral coefficients obtained through a transformation and codes these coefficients using a hierarchical set partitioning algorithm. The spectral transformation used is the one proposed in [10] where the spectral coefficients are obtained by projecting the mesh geometry onto an orthonormal basis determined by mesh topology. The set partitioning method that jointly codes the zeroes of these coefficients, treats the spectral coefficients for each of the three spatial coordinates with the right priority at all bit planes and realizes a truly embedded bitstream by implicit bit allocation. The experiments on common irregular meshes reveal that the distortion-rate performance of our coder is significantly superior to that of the spectral coder of [10].

Paper Details

Date Published: 28 January 2008
PDF: 8 pages
Proc. SPIE 6822, Visual Communications and Image Processing 2008, 682227 (28 January 2008); doi: 10.1117/12.764851
Show Author Affiliations
Umut Konur, Bogaziçi Univ. (Turkey)
Ulug Bayazit, Istanbul Technical Univ. (Turkey)
Hasan F. Ates, Isik Univ. (Turkey)
Fikret S. Gürgen, Bogaziçi Univ. (Turkey)


Published in SPIE Proceedings Vol. 6822:
Visual Communications and Image Processing 2008
William A. Pearlman; John W. Woods; Ligang Lu, Editor(s)

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