Title :
Finding the right wavelet for image compression: on the relevance of criteria
Author :
Büschgens, Thomas ; Hartenstein, Frank
Author_Institution :
Dept. of Comput. Sci., Tech. Hochschule Aachen, Germany
Abstract :
Finding the right wavelet is a crucial problem in wavelet-based image compression. Several criteria for choosing the right wavelet have been presented during the last years, but have never been evaluated together under equivalent conditions. We review some of them, present one additional criterion, the shift variance of compressed impulses, and show the results of an extensive evaluation using parameterized orthonormal wavelet filters of lengths 4, 6 and 8. We can show that under these conditions only few of the proposed criteria prove relevant
Keywords :
data compression; filtering theory; image coding; transform coding; wavelet transforms; compressed impulses; compression ratio; correlation; filter lengths; image compression; parameterized orthonormal wavelet filters; shift variance; transform coding; wavelet transforms; Compression algorithms; Computer science; Discrete wavelet transforms; Filters; Frequency measurement; Histograms; Image coding; Pulse measurements; Quantization; Wavelet transforms;
Conference_Titel :
Digital Signal Processing Workshop Proceedings, 1996., IEEE
Conference_Location :
Loen
Print_ISBN :
0-7803-3629-1
DOI :
10.1109/DSPWS.1996.555458