Multiple description video coding and transmission simulation over ZigBee.

This paper developed a multiple description video coding scheme based on 3D-SPIHT to solve the problem that receiving terminals were unable to decode because of the partial loss of coded video bit-stream transmitted over unreliable networks like ZigBee. Compared with traditional MDC methods like MDSQ, the descriptions created by this scheme were basically equal with each other and could improve compression ratio by cancelling frame redundant. Compared with international standard like H. 264, this scheme had some advantages, such as the algorithm was much more simple, the bit-stream could be decoded at any bit, the bit rate was scalable, and the reconstruction images had no clearly block effecting. The experiments show that this practical coding scheme being implemented on ZigBee multi-channel network will obtain good reconstruction images at a high compression ratio. [ABSTRACT FROM AUTHOR]