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Conference Paper
An Adaptive Quantization Scheme for Efficient Texture Coordinate Compression in MPEG 3DMC
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- Authors
- Sun Young Lee, Byeong Wook Min, Dai Yong Kim, Eun-Young Chang, Nam Ho Hur, Soo In Lee, Euee S. Jang
- Issue Date
- 2005-11
- Citation
- Pacific Rim Conference on Multimedia (PCM) 2005 (LNCS 3767), v.3767, pp.73-83
- Publisher
- Springer
- Language
- English
- Type
- Conference Paper
- Abstract
- Graphic models represented by 3D polygonal mesh (with geometry, color, normal vector, and texture coordinate information) are now heavily used in interactive multimedia applications. As an international standard, MPEG-4 3D mesh coding (3DMC) is a compression tool for 3D mesh models. Texture mapping on a 3D mesh model is now getting popular, since it can produce high quality reconstruction even with small number of polygons used. Texture coordinates (TCs) play an important role in texture mapping. In compressing TCs using 3DMC, we found that the lossless compression is not guaranteed, which jeopardizes the texture mapping due to the precision error between the original and reconstructed TC values. In this paper, we proposed an adaptive quantization scheme for efficient TC compression in 3DMC. By adaptively choosing the step size for quantization, the proposed method can guarantee the lossless compression. © Springer-Verlag Berlin Heidelberg 2005.
- KSP Keywords
- 3D mesh model, Coordinate compression, Interactive multimedia applications, International standard, Mpeg-4, Polygonal mesh, Step size, adaptive quantization, graphic models, lossless compression, normal vector