Translator Disclaimer
Paper
4 January 2002 Compression of parametric surfaces for efficient 3D model coding
Author Affiliations +
Proceedings Volume 4671, Visual Communications and Image Processing 2002; (2002) https://doi.org/10.1117/12.453068
Event: Electronic Imaging, 2002, San Jose, California, United States
Abstract
In the field of compression, the type of 3D models traditionally considered is that of polygonal meshes, for which several efficient compression techniques have been proposed in the recent years. Nowadays, an increasing proportion of 3D models are created by a synthesis or modeling process, instead of captured from the real world. Such models are most often given as parametric surfaces, which have several advantages over polygonal meshes, such as resolution independence and a more compact representation. This paper proposes a method to code parametric surfaces, given as Non-Uniform Rational B-Splines (NURBS). The coding scheme consists in coding the NURBS parameters (knots and control points) using a predictive scheme, coupled with uniform quantization and entropy coding. The multiplicity of knots is preserved by decomposing the knot vectors in a break vector (the values) and a multiplicity map. The rate-distortion of the proposed scheme is evaluated and compared against compressed triangular meshes. The results show that a considerable compression ratio is achievable under visually lossless conditions, that outperforms by far triangular meshes. In addition of having a better rate-distortion performance, the coding scheme enables the efficient transmission of synthesized 3D models retaining their resolution independence.
© (2002) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Diego Santa-Cruz and Touradj Ebrahimi "Compression of parametric surfaces for efficient 3D model coding", Proc. SPIE 4671, Visual Communications and Image Processing 2002, (4 January 2002); https://doi.org/10.1117/12.453068
PROCEEDINGS
12 PAGES


SHARE
Advertisement
Advertisement
RELATED CONTENT

The correction of the distortion of human face based on...
Proceedings of SPIE (August 05 2015)
Performance evaluation of 3D-TV systems
Proceedings of SPIE (January 28 2008)
Motion-compensated coding of 3D animation models
Proceedings of SPIE (January 04 2002)
UrbanScape
Proceedings of SPIE (May 01 2007)
The virtual reality 3D city of Ningbo
Proceedings of SPIE (November 03 2010)

Back to Top