Optical Instruments, Volume. 33, Issue 1, 38(2011)

The blind restoration of Gaussian blurred images

DING Zuohong1... GUO Hanming1,2, GAO Xiumin1, LAN Jingheng1, WENG Xiaoyu1, MAN Zhongsheng1 and ZHUANG Songlin |Show fewer author(s)
Author Affiliations
  • 1School of Optical-Electrical and Computer Engineering,University of Shanghai for Science and Technology, Shanghai 200093,China
  • 1School of Optical-Electrical and Computer Engineering,University of Shanghai for Science and Technology, Shanghai 200093,China:
  • 2Electronics and Information College,Hangzhou Dianzi University,Hangzhou 310018,China
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    Classical image restoration algorithm is based on point spread function (PSF) is known. However, it is difficult to determine PSF in many cases, we have to estimate the true image and PSF in the case of only knowing some of the information or no information of imaging systems, this process is called blind image restoration. For the Gaussian blurred image, it is very difficult to detect PSF, so blind restoration of the Gaussian blurred image has been a troublesome issue. In this paper, we suppose the initial PSF using the characteristics of Gaussian PSF, and do Wiener filtering based on Gaussian blurred image with noise, then gain the restoration image through the median filtering. Experiment shows that, restored image is better in subjective visual effect, and remarkable in recovery effect with good noise immunity. This method has some reference value to improve the image quality.

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    DING Zuohong, GUO Hanming, GAO Xiumin, LAN Jingheng, WENG Xiaoyu, MAN Zhongsheng, ZHUANG Songlin. The blind restoration of Gaussian blurred images[J]. Optical Instruments, 2011, 33(1): 38

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    Paper Information

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    Received: Aug. 2, 2010

    Accepted: --

    Published Online: Dec. 6, 2012

    The Author Email:

    DOI:10.3969/j.issn.1005-5630.2011.01.009

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