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An efficient architecture for two-dimensional discrete wavelet transform

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2 Author(s)
Po-Cheng Wu ; Inf. Technol. Div., Inst. for Inf. Ind., Taiwan, China ; Liang-Gee Chen

This paper proposes an efficient architecture for the two-dimensional discrete wavelet transform (2-D DWT). The proposed architecture includes a transform module, a RAM module, and a multiplexer. In the transform module, we employ the polyphase decomposition technique and the coefficient folding technique to the decimation filters of stages 1 and 2, respectively. In comparison with other 2-D DWT architectures, the advantages of the proposed architecture are 100% hardware utilization, fast computing time (0.5-0.67 times of the parallel filters'), regular data flow, and low control complexity, making this architecture suitable for next generation image compression systems, e.g., JPEG-2000

Published in:

Circuits and Systems for Video Technology, IEEE Transactions on  (Volume:11 ,  Issue: 4 )

Date of Publication:

Apr 2001

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