Title :
Vector quantization using image adaptive codebook
Author :
Wang, Limin ; Goldberg, Morris
Author_Institution :
Dept. of Electr. Eng., Ottawa Univ., Ont., Canada
Abstract :
The authors present vector quantization using image adaptive codebook (VQIAC), an image adaptive vector-quantization technique where the codebook generated from the input image is encoded by using variable-length transform coding (VLTC). It is shown experimentally that VQIAC-VLTC is competitive with both vector quantization using a universal codebook and the conventional VLTC operating on the original image. Excellent subjective quality is obtained at a bit rate of about 0.9161 b/pixel
Keywords :
encoding; picture processing; image adaptive codebook; picture processing; variable-length transform coding; vector quantization; Bit rate; Books; Clustering algorithms; Data compression; Degradation; Image coding; Pattern matching; Table lookup; Transform coding; Vector quantization;
Conference_Titel :
Communications, 1989. ICC '89, BOSTONICC/89. Conference record. 'World Prosperity Through Communications', IEEE International Conference on
Conference_Location :
Boston, MA
DOI :
10.1109/ICC.1989.49901
