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Parallel architecture for lifting-based 2DDWT algorithm

Baofeng Li

Journal of Computer Applications（2011）

Cited 1|Views6
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Abstract
A 2×2 parallel architecture for the lifting-based Two-Dimensional Discrete Wavelet Transform(2DDWT) was proposed.The architecture made use of the three inherent parallel characteristics of 2DDWT,such as row parallel,column parallel and row-column parallel to improve the execution speed and reduce the memory requirement.The proposal takes N2/4+N/2+1 clocks to transform a N×N image while only 3N internal memory is required.The architecture is verified by simulation and implemented in a StratixⅡFPGA.
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Key words
2ddwt algorithm,parallel architecture,lifting-based
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