Title :
Image coding using vector quantization with a hierarchical codebook in wavelet domain
Author :
Chen, Wen-Shiung ; Ou, Fu-Chiang ; Lin, Li-Chien ; Hsin, Chengho
Author_Institution :
Dept. of Video & Image Process., Feng Chia Univ., Taichung, Taiwan
fDate :
2/1/1999 12:00:00 AM
Abstract :
Wavelet transforms have emerged as powerful tools for data compression in image and video applications. Based on the strong interscale correlation between different scales on the same orientation and location in the wavelet domain, a vector quantization coding scheme with a hierarchical codebook in the wavelet domain is developed. The structure of the hierarchical codebook is designed and its training and construction criterion, based upon the conditional probability concept, is also described. Finally, the simulation results are presented
Keywords :
correlation methods; image coding; probability; transform coding; vector quantisation; wavelet transforms; codebook training; conditional probability; data compression; hierarchical codebook; image coding; interscale correlation; simulation results; training; vector quantization; video applications; wavelet domain; Data compression; Data engineering; Humans; Image coding; Image processing; Image storage; Vector quantization; Video compression; Wavelet domain; Wavelet transforms;
Journal_Title :
Consumer Electronics, IEEE Transactions on
