DocumentCode :
2368749
Title :
Lossy to lossless image compression using allpass filters
Author :
Zhang, Xi ; Kawai, K. ; Yoshikawa, T. ; Takei, Y.
Author_Institution :
Dept. of Inf. & Commun. Eng., Univ. of Electro-Commun., Tokyo, Japan
Volume :
1
fYear :
2005
fDate :
11-14 Sept. 2005
Abstract :
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 integer-to-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.
Keywords :
all-pass filters; data compression; image coding; wavelet transforms; allpass filters; decomposition process; integer-to-integer wavelets; lossless image compression; orthonormal symmetric wavelets; real-to-real wavelets; Codecs; Filter bank; Finite impulse response filter; IIR filters; Image analysis; Image coding; Image reconstruction; Nonlinear filters; Transform coding; Wavelet analysis; Allpass filter; Invertible implementation; Lossy to lossless coding; Orthonormal symmetric wavelet;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Image Processing, 2005. ICIP 2005. IEEE International Conference on
Print_ISBN :
0-7803-9134-9
Type :
conf
DOI :
10.1109/ICIP.2005.1529811
Filename :
1529811
Link To Document :
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