Title :
Orientation selective subband decomposition and stack-run coding
Author :
Mello, Magatho A. ; Bamberger, Roberto H. ; Fischer, Thomas R.
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., Washington State Univ., Pullman, WA, USA
Abstract :
We compare using traditional separable filter banks with a simple non-separable filter bank with orientation selectivity, for image compression. The image is decomposed into 19 subbands (6-level) using a separable octave-band decomposition. The high-frequency subband at each decomposition level is split into two bands with an orientation selective filter bank. The image data is then coded using stack-run coding. Results based on subjective testing showed an improvement in the oriented data of the reconstructed images
Keywords :
band-pass filters; data compression; filtering theory; image coding; image reconstruction; runlength codes; high-frequency subband; image compression; image data coding; nonseparable filter bank; orientation selective filter bank; orientation selective subband decomposition; reconstructed images; separable filter banks; separable octave-band decomposition; stack-run coding; subjective testing; Arithmetic; Computer science; Degradation; Filter bank; Frequency response; Image coding; Image reconstruction; Passband; Testing;
Conference_Titel :
Image Processing, 1997. Proceedings., International Conference on
Conference_Location :
Santa Barbara, CA
Print_ISBN :
0-8186-8183-7
DOI :
10.1109/ICIP.1997.638842
