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.
In this work, we present a multiple description coding (MDC) scheme for reliable transmission of compressed
three dimensional (3-D) meshes. It trades off reconstruction quality for error resilience to provide the best
expected reconstruction of 3-D mesh at the decoder side. The proposed scheme is based on multiresolution
geometry compression achieved by using wavelet transform and modified SPIHT algorithm. The trees of wavelet
coefficients are divided into sets. Each description contains the coarsest level mesh and a number of tree sets
coded with different rates. The original 3-D geometry can be reconstructed with acceptable quality from any
received description. More descriptions provide better reconstruction quality. The proposed algorithm provides
flexible number of descriptions and is optimized for varying packet loss rates (PLR) and channel bandwidth.
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