TY - JOUR
T1 - Lifting factorization based on block parallel system of m-channel perfect reconstruction filter banks
AU - Suzuki, Taizo
AU - Ikehara, Masaaki
PY - 2009/12/1
Y1 - 2009/12/1
N2 - Several lifting-based filter banks (LBFBs) are proposed for lossless-to-lossy image coding. However, the conventional methods can not achieve good coding performance due to many rounding operations, and they may have wide dynamic range of lifting coefficients due to inverse matrix. This paper presents a more practical lifting factorization of M-channel perfect reconstruction filter bank (PRFB). Using the block parallel system of PRFBs with an imposed condition, we can factorize them into a novel lifting structure which is called the parallel lifting. The validity of our structures is shown by applying them to lossless-to-lossy image coding.
AB - Several lifting-based filter banks (LBFBs) are proposed for lossless-to-lossy image coding. However, the conventional methods can not achieve good coding performance due to many rounding operations, and they may have wide dynamic range of lifting coefficients due to inverse matrix. This paper presents a more practical lifting factorization of M-channel perfect reconstruction filter bank (PRFB). Using the block parallel system of PRFBs with an imposed condition, we can factorize them into a novel lifting structure which is called the parallel lifting. The validity of our structures is shown by applying them to lossless-to-lossy image coding.
KW - Block parallel system
KW - Lossless-to-lossy image coding
KW - Parallel lifting
KW - Perfect reconstruction filter bank (PRFB)
UR - http://www.scopus.com/inward/record.url?scp=78049283684&partnerID=8YFLogxK
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M3 - Conference article
AN - SCOPUS:78049283684
SN - 2219-5491
SP - 2245
EP - 2248
JO - European Signal Processing Conference
JF - European Signal Processing Conference
T2 - 17th European Signal Processing Conference, EUSIPCO 2009
Y2 - 24 August 2009 through 28 August 2009
ER -