Efficient Three-Dimensional Wavelet Codecs for Networked Video Communications

Based on our previously developed signi cance-linked connected component analysis (SLCCA) data organization and representation strategy, two three-dimensional wavelet video coding techniques are proposed covering a wide range of applications areas. In three-dimensional SLCCA (3D-SLCCA), both the wavelet decomposition and SLCCA data organization and representation strategy are extended to 3-D case. In Haar wavelet SLCCA (H-SLCCA), the SLCCA data organization and representation strategy is separately applied on each of the two temporal subbands obtained by Haar waveletbased temporal decomposition. The developed codecs not only provide comparable or superior performance in comparison to state-of-the-art video coding standards, but also have several desirable properties such as scalability, low computational complexity, and error resilience, well suited for networked video communications.