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We propose a method that extracts sparse and spatially localized deformation modes from an animated mesh sequence. To this end, we propose a new way to extend the theory of sparse matrix decompositions to 3D mesh sequence processing, and further contribute with an automatic way to ensure spatial locality of the decomposition in a new optimization framework.(More)
–In this paper we review error resilience techniques for real-time video transport over unreliable networks. Topics covered include an introduction to today's protocol and network environments and their characteristics, encoder error resilience tools, decoder error concealment techniques, as well as techniques that require cooperation between encoder,(More)
Multiple description coding (MDC) offers a competitive solutionfor video transmission over lossy packet networks,with a graceful degradation of the reproduced quality as theloss rate increases. This paper illustrates how redundantpictures, an error resilience tool included in H.264/AVC,can be employed in conjunction with multiple state videocoding scheme,(More)
Transmission of hybrid coded video including motion compensation and spatial prediction over error-prone channels results in the well-known problem of spatio-temporal error propagation at the decoder. A widely accepted standard-compliant technique to enhance the quality of the decoded video significantly is the more frequent introduction of intra-coded(More)