A Lifting Scheme of Symmetric-antisymmetric Multiwavelet Transform for Image Coding

A Lifting Scheme of Symmetric-antisymmetric Multiwavelet Transform for Image Coding

A symmetric-antisymmetric (SA) multiwavelet lifting factorization of matrix filter banks is presented as an extension of Sweldens’ traditional scalar wavelet lifting scheme. A prefilter absorbed (PA) multiwavelet lifting factorization is also presented to reduce the redundant computations in prefilt...

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Veröffentlicht in:Circuits, systems, and signal processing systems, and signal processing, 2012-10, Vol.31 (5), p.1887-1900
Hauptverfasser: Chen, Jiazhong, Ju, Zengwei, Cao, Hua, Xie, Ping, Chen, Changnian, Li, Rong, Xia, Tao, Qin, Leihua
Format: Artikel
Sprache:eng
Schlagworte:
Algorithms
Circuits
Circuits and Systems
Electrical Engineering
Electronics and Microelectronics
Engineering
Factorization
Filter banks
Hoisting
Image coding
Instrumentation
Prefilters
Preserves
Scalars
Short Paper
Signal,Image and Speech Processing
Wavelet transforms
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Zusammenfassung:A symmetric-antisymmetric (SA) multiwavelet lifting factorization of matrix filter banks is presented as an extension of Sweldens’ traditional scalar wavelet lifting scheme. A prefilter absorbed (PA) multiwavelet lifting factorization is also presented to reduce the redundant computations in prefiltering. Then an algorithm of multiwavelet lifting is designed and used for signal decomposition. The experimental results show this lifting scheme can achieve lower complexity while preserve high quality for image coding.
ISSN:0278-081X
1531-5878
DOI:10.1007/s00034-012-9404-3