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Improvements in the compression performance can be achieved if the image transform is able to adapt to the shape of the objects present. We propose a new hybrid shape-adaptive orthogonal transform which is based on M-channel subband decomposition and shape-adaptive DCT techniques. The signal extension method for the region-based dyadic wavelet transform is applied to region-based image coding using M-channel filter banks. Simulation results show that the proposed method outperforms shape-adaptive DCT coding
Published in:
Circuits and Systems for Video Technology, IEEE Transactions on
(Volume:10
,
Issue:
8
)
Date of Publication: Dec 2000
- Page(s):
- 1471 - 1477
- ISSN :
- 1051-8215
- INSPEC Accession Number:
- 6811005
- Digital Object Identifier :
- 10.1109/76.889054
- Product Type:
- Journals & Magazines
- Date of Current Version :
- 06 August 2002
- Issue Date :
- Dec 2000
- Sponsored by :
- IEEE Circuits and Systems Society
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