Title :
DWT and CVQ based image coding for a low bit rate
Author :
Park, H.J. ; Park, H.W.
Author_Institution :
Dept. of Inf. & Commun. Eng., Korea Adv. Inst. of Sci. & Technol., Seoul, South Korea
fDate :
5/11/1995 12:00:00 AM
Abstract :
A low bit rate coding method using the discrete wavelet transform (DWT) and classified vector quantisation (CVQ) is presented. An image is decomposed by DWT; then, the transformed image is encoded by CVQ. The proposed method allows the decoder to self-generate the class information for CVQ rather than requiring that it be received from the encoder. This results in improved compression performance
Keywords :
image coding; vector quantisation; wavelet transforms; CVQ based image coding; DWT; class information; classified vector quantisation; compression performance; discrete wavelet transform; low bit rate coding method;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19950532
