DISPOSITIF ET PROCEDE DE COMPRESSION DE DONNEES D'IMAGES RECUES A PARTIR D'UN CAPTEUR D'IMAGES A CONFIGURATION BAYER, ET SYSTEME UTILISANT CE DISPOSITIF

摘要

Method and apparatus for image data compression that greatly reduces implementational complexity and cost, and improves error correction. These improvements are achieved at various implementational blocks which include a color extraction unit that can perform a first level of compression by reducing the frame size by, e.g., ¼ or 1/16. This is followed by compression through division by a programmable loss value where the division propagates the remainder to improve image quality. Differential coded modulation is then performed on the extracted color values to further reduce image data size. The result is variable length encoded using preferably a 1's complement approach that further reduces implementational complexity by eliminating VL coding tables. Finally, the VL encoded compressed data is packetized for transmission over a serial bus where the packetization improves error correction.