Vector quantization using image adaptive codebook

Author

Wang, Limin ; Goldberg, Morris

Author_Institution

Dept. of Electr. Eng., Ottawa Univ., Ont., Canada

fYear

1989

Firstpage

1350

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications, 1989. ICC '89, BOSTONICC/89. Conference record. 'World Prosperity Through Communications', IEEE International Conference on

Conference_Location

Boston, MA

Type

conf

DOI

10.1109/ICC.1989.49901

Filename

49901

Link To Document

https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1648999