Title :
Factorisation for subclass of symmetric-antisymmetric multifilter banks and its application to image coding
Author :
Gao, Xiqi ; Gan, Lu ; Zou, Cairong
Author_Institution :
Dept. of Radio Eng., Southeast Univ., Nanjing, China
fDate :
3/16/2000 12:00:00 AM
Abstract :
A complete and minimal factorisation is proposed for an important subclass of symmetric-antisymmetric multiwavelet filter banks (SAMFBs). Based on this factorisation, optimal SAMFBs are designed for image coding under an optimisation criterion. Experimental results show that the SAMFBs significantly outperform the traditional 9-7 wavelet in terms of coding efficiency, especially for hard-to-compress images
Keywords :
data compression; filtering theory; image coding; optimisation; coding efficiency; hard-to-compress images; image coding application; minimal factorisation; multiwavelet filter banks; optimisation criterion; symmetric-antisymmetric multifilter banks; zerotree image coder;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20000370
