Efficient three-dimensional wavelet codecs for networked video communications

Based on our previously developed significance-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 (N-SLCCA), the SLCCA data organization and representation strategy is separately applied on each of the two temporal subbands obtained by Haar wavelet-based 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.