Title :
Subband block coding of images through M-band wavelet transform
Author :
Biao, Hou ; Licheng, Jiao
Author_Institution :
Key Lab. for Radar Signal Process., Xidian Univ., Xi´´an, China
Abstract :
A subband block coding method is proposed, by exploiting the frequency characteristic of the M-band wavelet transform of images. Two consequent problems are efficiently solved, i.e. (a) how to select proper subbands for reconstruction, and (b) how to determine the size of the block of selected subbands. The bound effect is efficiently removed. Subband block coded images are presented along with their PSNR and compression ratios
Keywords :
data compression; image coding; image resolution; transform coding; wavelet transforms; M-band multiresolution analysis; M-band wavelet transform; PSNR; compression ratios; frequency characteristic; image reconstruction; subband block image coding; subband block size; subbands selection; Block codes; Discrete wavelet transforms; Frequency conversion; Image coding; Image reconstruction; Laboratories; Multiresolution analysis; Radar signal processing; Wavelet analysis; Wavelet transforms;
Conference_Titel :
Signal Processing Proceedings, 2000. WCCC-ICSP 2000. 5th International Conference on
Conference_Location :
Beijing
Print_ISBN :
0-7803-5747-7
DOI :
10.1109/ICOSP.2000.891731
