DMCA
On Optimal Tiling Of The Spectrum In Subband Image Compression (1997)
| Venue: | In Proceedings of the IEEE International Conference on Image Processing |
| Citations: | 2 - 1 self |
BibTeX
@INPROCEEDINGS{Balasingham97onoptimal,
author = {Ilangko Balasingham and Arild Fuldseth and Tor A. Ramstad},
title = {On Optimal Tiling Of The Spectrum In Subband Image Compression},
booktitle = {In Proceedings of the IEEE International Conference on Image Processing},
year = {1997}
}
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Abstract
The performance of subband image coders depends on the proper choice of frequency partitioning in the subband domain. It is therefore desirable to have an adaptive nonuniform filter bank to cope with the frequency characteristics of the image at hand. However, a good choice, if a nonadaptive structure is to be used, is combinations of uniform parallel and octave-band treestructured filter banks. In this paper, uniform parallel (8-channel, 32-tap), and 3-stage and 6-stage octaveband tree-structured systems are compared using a fixed rate coder for image coding purposes. Favorable results are obtained using the combination of a parallel filter bank and a tree-structured system. The coding results are comparable to the "best" results reported in the literature. 1. INTRODUCTION Filter banks (FBs) find applications in communications, filtering, restoration, compression, etc.. In compression applications, the popularity is due to the fact that most signal sources, e.g. speech and image dat...
Keyphrases
optimal tiling subband image compression uniform parallel frequency partitioning compression application adaptive nonuniform filter bank proper choice parallel filter bank nonadaptive structure subband domain tree-structured system signal source subband image coder image dat 6-stage octaveband tree-structured system filter bank favorable result coding result frequency characteristic good choice fixed rate coder introduction filter bank image coding purpose
