Compression of point-texture 3D motion sequences

In-Wook Song; Chang-Su Kim; Sang-Uk Lee

doi:10.1117/12.630234

24 October 2005 Compression of point-texture 3D motion sequences

In-Wook Song, Chang-Su Kim, Sang-Uk Lee

Proceedings Volume 6015, Multimedia Systems and Applications VIII; 60151E (2005) https://doi.org/10.1117/12.630234
Event: Optics East 2005, 2005, Boston, MA, United States

Abstract

In this work, we propose two compression algorithms for PointTexture 3D sequences: the octree-based scheme and the motion-compensated prediction scheme. The first scheme represents each PointTexture frame hierarchically using an octree. The geometry information in the octree nodes is encoded by the predictive partial matching (PPM) method. The encoder supports the progressive transmission of the 3D frame by transmitting the octree nodes in a top-down manner. The second scheme adopts the motion-compensated prediction to exploit the temporal correlation in 3D sequences. It first divides each frame into blocks, and then estimates the motion of each block using the block matching algorithm. In contrast to the motion-compensated 2D video coding, the prediction residual may take more bits than the original signal. Thus, in our approach, the motion compensation is used only for the blocks that can be replaced by the matching blocks. The other blocks are PPM-encoded. Extensive simulation results demonstrate that the proposed algorithms provide excellent compression performances.

Citation Download Citation

In-Wook Song, Chang-Su Kim, and Sang-Uk Lee "Compression of point-texture 3D motion sequences", Proc. SPIE 6015, Multimedia Systems and Applications VIII, 60151E (24 October 2005); https://doi.org/10.1117/12.630234

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