Title :
On the Significance of the Zerotree Hypothesis for Wavelet-Based Image Coding
Author_Institution :
Dept. of Comput. Sci., Salzburg
Abstract :
The significance of the zerotree hypothesis and its importance for the coding efficiency of zerotree-based wavelet image coding schemes is discussed. We apply specific coefficient permutations within the JPEG2000 and SPIHT coding pipelines which allow to control the amount of inter and intra subband correlations present in the visual data to be compressed. Results document and emphasize the importance of the zerotree hypothesis for image coding and suggest that it has a high likelihood of being correct
Keywords :
correlation methods; data compression; image coding; trees (mathematics); wavelet transforms; JPEG2000; SPIHT coding pipelines; coefficient permutation; inter subband correlation; intra subband correlation; set partitioning-in-hierarchical trees; wavelet-based image coding; zerotree hypothesis; Codecs; Displays; Frequency; Image coding; Pipelines; Rate-distortion; Transform coding; Wavelet coefficients; Wavelet domain; Wavelet transforms;
Conference_Titel :
Signal Processing Symposium, 2006. NORSIG 2006. Proceedings of the 7th Nordic
Conference_Location :
Rejkjavik
Print_ISBN :
1-4244-0412-6
Electronic_ISBN :
1-4244-0413-4
DOI :
10.1109/NORSIG.2006.275219
