A real-time encoding/decoding system (REDS) for HDTV editing

4 programmable and scalable parallel architecture i s proposed for the real-time encoding/decoding of I-IDTV images and for nonlinear editing of the compressed video data. It only use!; the intra-mode compression/decompression so that nonlinear editing can be performed easily and high-quality images can be recovered. Spatially partitioned image data are concurrently processed by multiple parallel processing units (PU's). Each PU consists o f a programmable parallel digital signal processor, called multimedia video processor (MVP; TMS320C80), and reconfigurable field programmabile logic devices (FPLD's). The performance o f the REDS i s described in terms of the required MVP cycles for transform coding and the FPLD's throughput for entropy coding. Robust RD-optimized quantization matrices for HDTV images a r e presented.