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题名:
Noniterative blind image restoration based on estimation of a significant class of point spread functions
作者: Zhang, Jianlin; Zhang, Qiheng
刊名: OPTICAL ENGINEERING
出版日期: 2007-07-01
卷号: 46, 期号:7
关键词: blind image restoration ; blind deconvolution ; GSECB method ; DAPEX method ; real time
文章类型: Article
英文摘要: Blind image restoration means estimating the true image from an observed degraded image, with incomplete or little prior knowledge of the blur function and the true image. Commonly, iterative or recursive methods are applied to this problem, but they are usually time-consuming, uncertain, and divergent. Focusing on a limited but significant class of point spread functions (heavy-tailed Levy processes), a noniterative blind image restoration method is proposed, which directly estimates the point spread functions from the degraded image's Fourier amplitude and restores the image by general slow evolution of a continuation boundary. This method is based on the fast Fourier transform, so it can accomplish the blind restoration of a 512 X 512 image in seconds of CPU time on a current desktop platform. From several experiments on synthetic blurred images and on actual images, it is found that the quality of the restored images has been greatly improved, and many fine details are restored, by applying this method. (c) 2007 Society of Photo-Optical Instrumentation Engineers.
WOS标题词: Science & Technology ; Physical Sciences
类目[WOS]: Optics
研究领域[WOS]: Optics
关键词[WOS]: NATURAL IMAGES ; DECONVOLUTION ; STATISTICS ; SPECTRA
收录类别: SCI
语种: 英语
WOS记录号: WOS:000250200700038
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ioe.ac.cn/handle/181551/3592
Appears in Collections:光电技术研究所被WoS收录文章_期刊论文

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作者单位: 1.Chinese Acad Sci, Inst Opt & Elect, Lab 5, Chengdu 610209, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China

Recommended Citation:
Zhang, Jianlin,Zhang, Qiheng. Noniterative blind image restoration based on estimation of a significant class of point spread functions[J]. OPTICAL ENGINEERING,2007,46(7).
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