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Optical Engineering

Forward-flipping architecture for lifting-based discrete wavelet transform
Author(s): Xin Tian; Delie Ming; Jinwen Tian; Jiaolong Wei
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Paper Abstract

This paper illustrates a forward-flipping architecture for lifting-based discrete wavelet transform (DWT), in which the multiplication and addition operations are flipped to different computation paths in each lifting step through forward-flipping, and the critical path of each lifting step is shortened to one multiplication operation latency. Through case studies on the JPEG2000 default lossy (9,7) filter and the (6,10) filter, the efficiency of the proposed architecture has been demonstrated and confirmed. The comparison results have also shown that the proposed architecture is efficient in reducing the number of pipeline registers for the implementation of DWT under the given timing criteria.

Paper Details

Date Published: 1 March 2011
PDF: 9 pages
Opt. Eng. 50(3) 037005 doi: 10.1117/1.3558741
Published in: Optical Engineering Volume 50, Issue 3
Show Author Affiliations
Xin Tian, Huazhong Univ. of Science and Technology (China)
Delie Ming, Huazhong Univ. of Science and Technology (China)
Jinwen Tian, Huazhong Univ. of Science and Technology (China)
Jiaolong Wei, Huazhong Univ. of Science and Technology (China)


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