Multiple description coding of 3D dynamic meshes based on temporal subsampling

18 January 2010 Multiple description coding of 3D dynamic meshes based on temporal subsampling

M. Oguz Bici, Gozde Bozdagi Akar

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Proceedings Volume 7543, Visual Information Processing and Communication; 75430C (2010) https://doi.org/10.1117/12.839850
Event: IS&T/SPIE Electronic Imaging, 2010, San Jose, California, United States

Abstract

In this paper, we propose a Multiple Description Coding (MDC) method for reliable transmission of compressed time consistent 3D dynamic meshes. It trades off reconstruction quality for error resilience to provide the best expected reconstruction of 3D mesh sequence at the decoder side. The method is based on partitioning the mesh frames into two sets by temporal subsampling and encoding each set independently by a 3D dynamic mesh coder. The encoded independent bitstreams or so-called descriptions are transmitted independently. The 3D dynamic mesh coder is based on predictive coding with spatial and temporal layered decomposition. In addition, the proposed method allows for different redundancy allocations by including a number of encoded spatial layers of the frames in the other set. The algorithm is evaluated with redundancy-rate-distortion curves and it is shown that, when one of the descriptions is lost, acceptable quality can be achieved with around 50% redundancy.

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M. Oguz Bici and Gozde Bozdagi Akar "Multiple description coding of 3D dynamic meshes based on temporal subsampling", Proc. SPIE 7543, Visual Information Processing and Communication, 75430C (18 January 2010); https://doi.org/10.1117/12.839850

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KEYWORDS

Computer programming

Distortion

3D imaging standards

Computer simulations

Data compression

Error analysis

Forward error correction

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