Title :
Reversible non-expansive symmetric convolution for M-channel lifting based linear-phase filter banks
Author :
Suzuki, Takumi ; Ikehara, Masaaki
Author_Institution :
EEE Dept., Nihon Univ., Koriyama, Japan
fDate :
Sept. 30 2012-Oct. 3 2012
Abstract :
This paper presents an effective signal boundary solution in lossy-to-lossless image coding which is the unification of lossy and lossless image coding. Although M-channel filter banks (FBs) for lossy image coding have several effective signal boundary solutions, M-channel lifting based FBs (L-FBs) for lossless image coding do not have such an effective signal boundary solutions due to rounding error in each lifting step. This paper proposes reversible non-expansive symmetric convolution for M-channel lifting based linear-phase FBs (L-LPFBs) to apply lossy-to-lossless image coding. Our proposal is validated by comparing with the periodic extension in lossy-to-lossless image coding.
Keywords :
channel bank filters; convolution; image coding; M channel filter banks; M channel lifting; linear phase filter banks; lossless image coding; lossy image coding; reversible nonexpansive symmetric convolution; signal boundary solutions; Bit rate; Convolution; Filter banks; Image coding; Image reconstruction; Symmetric matrices; Transforms; M-channel lifting based linear-phase filter bank (L-LPFB); lossy-to-lossless image coding; reversible non-expansive symmetric convolution;
Conference_Titel :
Image Processing (ICIP), 2012 19th IEEE International Conference on
Conference_Location :
Orlando, FL
Print_ISBN :
978-1-4673-2534-9
Electronic_ISBN :
1522-4880
DOI :
10.1109/ICIP.2012.6467394
