Multiple Description Coding of 3D Mesh Based on Weighted Wavelet Coefficients
The proposed WW_MDC(weighted wavelet Multiple Description Coding) method was based on the dependency of wavelet generated in the remeshing process.The wavelet was used to extract a base mesh and obtain an array of wavelet coefficients.Then the wavelet coefficients were scaled up before using the embedded character of SPIHT to derive multiple descriptions of the mesh,which the number of descriptions and redundant can vary according to the change of channel bandwidth and the PLR(packet loss rate).The experimental results show that the proposed method has better ability to adapt the complex network environment and error resilient,and also lower reconstruction error.