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ICIP
2005
IEEE

Lossy to lossless image compression using allpass filters

13 years 1 months ago
Lossy to lossless image compression using allpass filters
In this paper, an effective implementation of the allpass-based orthonormal symmetric wavelets is proposed for image compression. Since the orthonormal symmetric wavelets are used, it can be expected to get better compression performance than biorthogonal wavelets. Firstly, the implementation of irreversible real-to-real wavelets is presented and its decomposition process is shown by using allpass filters. Then, the realization of the reversible integerto-integer wavelets is given by utilizing the invertible implementation of allpass filters. Finally, the coding performance of the orthonormal symmetric wavelets is evaluated and compared with the D-9/7 and D-5/3 wavelets. It is shown from the experimental results that the allpass-based orthonormal symmetric wavelets can achieve better compression performance than the D-9/7 and D-5/3 wavelets.
Xi Zhang, Kousuke Kawai, Toshinori Yoshikawa, Yosh
Added 23 Oct 2009
Updated 23 Oct 2009
Type Conference
Year 2005
Where ICIP
Authors Xi Zhang, Kousuke Kawai, Toshinori Yoshikawa, Yoshinori Takei
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