Texture coordinate compression for 3-d mesh models using texture image rearrangement

Authors:
Sung-Yeol Kim;Young-Suk Yoon;Seung-Man Kim;Kwan-Heng Lee;Yo-Sung Ho
Affiliations:
Gwangju Institute of Science and Technology (GIST), Gwangju, Korea;Gwangju Institute of Science and Technology (GIST), Gwangju, Korea;Gwangju Institute of Science and Technology (GIST), Gwangju, Korea;Gwangju Institute of Science and Technology (GIST), Gwangju, Korea;Gwangju Institute of Science and Technology (GIST), Gwangju, Korea
Venue:
PCM'05 Proceedings of the 6th Pacific-Rim conference on Advances in Multimedia Information Processing - Volume Part I
Year:
2005

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Abstract

Previous works related to texture coordinate coding of the three-dimensional(3-D) mesh models employed the same predictor as the geometry coder. However, discontinuities in the texture coordinates cause unreasonable prediction. Especially, discontinuities become more serious for the 3-D mesh model with a non-atlas texture image. In this paper, we propose a new coding scheme to remove discontinuities in the texture coordinates by reallocating texture segments according to a coding order. Experiment results show that the proposed coding scheme outperforms the MPEG-4 3DMC standard in terms of compression efficiency. The proposed scheme not only overcome the discontinuity problem by regenerating a texture image, but also improve coding efficiency of texture coordinate compression.