IMAGE COMPRESSIONS METHOD AND APPARATUS EMPLOYING DISTORTION ADAPTIVE TREE SEARCH VECTOR QUANTIZATION

摘要

2123915 9310636 PCTABS00022 A variable rate vector quantization method employs a tree structured codebook (114). The level of the codebook from which codevectors are selected is determined by a threshold (116). The threshold varies according to the fullness of a buffer (118) which stores vector quantized data to be transmitted.