Forward-flipping architecture for lifting-based discrete wavelet transform

Details Forward-flipping architecture for lifting-based discrete wavelet transform Forward-flipping architecture for lifting-based discrete wavelet transform

Mar 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011opten..50c7005t&link_type=abstract

Optical Engineering, Volume 50, Issue 3, pp. 037005-037005-8 (2011).

Statistics

Computation

Discrete Wavelet Transforms, Image Coding, Optical Filters, Optical Losses, Image Forming And Processing, Filters, Zone Plates, And Polarizers

Scientific paper

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.

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