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Efficient Architectures for the Biorthogonal Wavelet Transform by Filter Bank and Lifting Scheme
YeuHorng SHIAU Jer Min JOU ChinChi LIU
Publication
IEICE TRANSACTIONS on Information and Systems
Vol.E87D
No.7
pp.18671877 Publication Date: 2004/07/01 Online ISSN:
DOI: Print ISSN: 09168532 Type of Manuscript: PAPER Category: VLSI Systems Keyword: discrete wavelet transform, VLSI design, pipelining architecture, multimedia applications,
Full Text: PDF(960.8KB)>>
Summary:
In this paper, two efficient VLSI architectures for biorthogonal wavelet transform are proposed. One is constructed by the filter bank implementation and another is constructed by the lifting scheme. In the filter bank implementation, due to the symmetric property of biorthogonal wavelet transform, the proposed architecture uses fewer multipliers than the orthogonal wavelet transform. Besides, the polyphase decomposition is adopted to speed up the processing by a factor of 2. In the lifting scheme implementation, the pipelinescheduling technique is employed to optimize the architecture. Both two architectures are with advantages of lower implementation complexity and higher throughput rate. Moreover, they can also be applied to realize the inverse DWT efficiently. Based on the above properties, the two architectures can be applied to timecritical image compressions, such as JPEG2000. Finally, the architecture constructed by the lifting scheme is implemented into a single chip on 0.35 µm 1P4M CMOS technology, and its area and working performance are 5.005 5.005 mm^{2} and 50 MHz, respectively.

