This paper describes a 64-kb/s full-color video CODEC using DSPs. The coding algorithm is mostly based on CCITT Reference Model 5,which uses motion-compensated interframe prediction and DCT. The image format is 1/4 CSIF. The coder, as well as the decoder, consists of a personal computer. DSP boards, and other boards. Each DSP board has two DSP circuits, and many DSP boards can work concurrently. Experimental results show that this CODEC can transmit 1.65 frames/sec when three DSPs are used at each end, and if nine DSPs are used, the theoretically expected performance is 4.46 frames/sec.
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