DocumentCode
997148
Title
Cache vector quantisation algorithm in video compression
Author
Ku, C.-W. ; Chen, Li-Guang ; Chiueh, Tzi-Dar
Author_Institution
Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan
Volume
29
Issue
16
fYear
1993
Firstpage
1423
Lastpage
1424
Abstract
A new vector quantisation (VQ) algorithm based on a strategy similar to the cache in traditional computers is proposed and simulated. The method can significantly reduce the redundancy in VQ indices. According to the simulated results, the bit rate is variable but is much less than that of the primary full search algorithm. For test sequence ´Miss America´, the mean square error is approximately 23 and the bit rate is approximately 0.3 bit/pixel.
Keywords
data compression; image coding; image reconstruction; vector quantisation; VQ indices; bit rate; mean square error; primary full search algorithm; redundancy; vector quantisation; video compression;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:19930953
Filename
252471
Link To Document