高速2値イメージ圧縮伸張LSIの開発 : ファクシミリと画像一般 : 画像通信システム

概要

論文の詳細を見る
For high-speed decoding of the MMR code, presented is a new pipelined CODEC, which generates output image nearly at the maximum data flow rate of I byte per machine cycle. A pipeline hazard which is intrinsic to the MMR coding scheme is identified. Proposed pipeline configuration optimized for the MMR-decoding, enhanced parallelism to generate - a fixed amount of the image regardless the word-boundary, and hardwired controls for key-steps are attributed for this high data rate. This was designed as a VLSI, fablicated and evaluated. Any of the CCITT test charts was expanded in less than 0.15 sec. with machine cycle time of 200ns.
社団法人映像情報メディア学会の論文