Regularization algorithm for blind image restoration based on wavelet transform
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Regularization algorithm for blind image restoration based on wavelet transform
Optics and Precision EngineeringVol. 15, Issue 4, Pages: 582-586(2007)
作者机构:
北京航空航天大学 仪器与光电工程学院,北京 100083
作者简介:
基金信息:
DOI:
CLC:TP391.4
Received:22 December 2006,
Revised:16 March 2007,
Published Online:30 April 2007,
Published:30 April 2007
稿件说明:
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JIANG Jie, DENG Qiong, ZHANG Guang-Jun. Regularization algorithm for blind image restoration based on wavelet transform[J]. Optics and precision engineering, 2007, 15(4): 582-586.
DOI:
JIANG Jie, DENG Qiong, ZHANG Guang-Jun. Regularization algorithm for blind image restoration based on wavelet transform[J]. Optics and precision engineering, 2007, 15(4): 582-586.DOI:
Regularization algorithm for blind image restoration based on wavelet transform
A wavelet based adaptive regularization scheme for blind image restoration is presented. The degraded image is decomposed to obtain its wavelet coefficients in wavelet domain
and the image’s different frequency sub-bands are obtained also. Then
different adaptive regularization image restoration schemes are used in different sub-bands: removing blur in the low frequency sub-bands
while reducing noise and preserving edges in the high frequency sub-bands
and the algorithm finally obtains a restored image by adverse transforming. The experiments show that the MSE has a reduction of 1.60
while the SNR is increased by 1.76. It demonstrates that the blind image restoration method is more efficient compared with traditional space-adaptive regularization method.