Title :
A new statistical bit allocation system for subband coding of images
Author :
Rege, P.P. ; Jog, K.S.
Author_Institution :
Dept. of Electron. & Telecomm., Gov. Coll. of Eng., Pune, India
Abstract :
In this paper, we present a wavelet based subband decomposition scheme. Since the wavelet decomposition can be implemented in terms of quadrature mirror filters (QMF), we have used Daubechies (1992) 4-tap filter for our work. By applying QMF bank we have split the full-band original image into 16 equally-divided subbands. The entropy of these bands is selected as a criteria for bit allocation of various bands
Keywords :
channel bank filters; data compression; entropy; filtering theory; image coding; quadrature mirror filters; statistical analysis; transform coding; wavelet transforms; Daubechies 4-tap filter; QMF bank; entropy; full-band original image; quadrature mirror filters; statistical bit allocation system; subband image coding; transform coding; wavelet based subband decomposition; Bit rate; Educational institutions; Entropy; Filtering; Filters; Frequency; Image coding; Mirrors; Telecommunications; Transform coding;
Conference_Titel :
TENCON 99. Proceedings of the IEEE Region 10 Conference
Conference_Location :
Cheju Island
Print_ISBN :
0-7803-5739-6
DOI :
10.1109/TENCON.1999.818502
