ew Construction for 9/7 Wavelet Basis and Fast Implementation

Wang Qian; Lü Dong-qiang; Li Jing; Ge Bao-shan

doi:10.3724/SP.J.1146.2008.00335

Volume 31 Issue 5

Dec. 2010

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Article Navigation > Journal of Electronics & Information Technology > 2009 > 31(5): 1210-1213

Wang Qian, Lü Dong-qiang, Li Jing, Ge Bao-shan. ew Construction for 9/7 Wavelet Basis and Fast Implementation[J]. Journal of Electronics & Information Technology, 2009, 31(5): 1210-1213. doi: 10.3724/SP.J.1146.2008.00335

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Wang Qian, Lü Dong-qiang, Li Jing, Ge Bao-shan. ew Construction for 9/7 Wavelet Basis and Fast Implementation[J]. Journal of Electronics & Information Technology, 2009, 31(5): 1210-1213. doi: 10.3724/SP.J.1146.2008.00335

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ew Construction for 9/7 Wavelet Basis and Fast Implementation

doi: 10.3724/SP.J.1146.2008.00335

Received Date: 2008-03-24
Rev Recd Date: 2008-07-07
Publish Date: 2009-05-19

Abstract

Abstract

Fast implementation of CDF9/7 wavelet is strictly retained for its complex coefficient. This paper constructs a new biorthogonal and lifting-based wavelet model with parameters. The new wavelet basis of rational number proposed is adapted to shift operation with the same compression performance to CDF9/7 by using energy concentration and iterative searching algorithm. One multiplication can be implemented by one addition and shift in the hardware design. It amounts to the original calculation quantity of 25% and its precision is not influenced by the word length. The 4 level pipelined architecture of one dimensional transform is demonstrated on the FPGA. Compared with the related design, it reduces half resource requirement and improves the working frequency of system prominently.

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References

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