A multiple description coding method based on 3-D SPIHT for videos

This study presents a new multiple description coding method based on a three-dimensional set partitioning in hierarchical trees (3-D SPIHT) algorithm in WiMAX for videos. Applying a poly-phase sampling technique to sample an input video over its intra-frame or inter-frame, several independent and highly correlated descriptions are generated. Then, a 3-D SPIHT algorithm is applied to each of the produced descriptions. Finally, the coding results are transmitted via different channels. This proposed approach achieves high compression ratio, enhances transmission speed, and more importantly, attains acceptable video quality when channel congestion occurs. Experimental results are provided to demonstrate promising performance of the proposed method.