Frame or sub-frame rate adaptive vector quantizer for moving images

摘要: An adaptive vector quantization scheme suitable for packet video adapts to the varying characteristics of actual images sequence being compressed. A large code book is divided into two sections, having higher and lower priority, representing common specific images. Each new image be coded first compared section book. If a match acceptable quality not found, then it section. The best sections utilized. Entries in are reorganized and/or exchanged as function usage vectors therein. rate extent adaptation dictated by update interval desired level quality, respectively, without requiring any transmission themselves or side information.