Fast boundary artifact reduction algorithm for image deconvolution

Residential College	false
Status	已發表Published
	Fast boundary artifact reduction algorithm for image deconvolution
	Ma Z.1; Liu X.1; Wu E.1
	2014
Source Publication	Jisuanji Fuzhu Sheji Yu Tuxingxue Xuebao/Journal of Computer-Aided Design and Computer Graphics
ISSN	10039775
Volume	26 Issue:7
Abstract	Frequency domain image deconvolution algorithms assume the periodicity of the input signals. But the discontinuities appeared along image boundaries can cause severe ringing artifacts in the restored results. This paper presents a fast and effective boundary artifact reduction method. Inspired by previous expansion based algorithms, this paper firstly simplifies the definition of expansion regions into three types, and then proposes an improved convolution pyramid model with symmetric coefficients. Based on this model, it trains the filter coefficients for each type of region on some special images, before it can be applied to compute expansions for arbitrary images. Experimental results show that the proposed method can avoid solving huge sparse linear systems, and bring an acceleration of two orders of magnitude without sacrificing the accuracy of the deconvolution, while reducing the ringing artifact effectively for all Fourier domain deconvolution methods.
Keyword	Boundary artifacts Fourier transform Image deconvolution Image restoration
URL	View the original
Language	英語English
Fulltext Access	View Full-Text via Scopus
Document Type	Journal article
Collection	University of Macau
Affiliation	1.Institute of Software Chinese Academy of Sciences 2.Universidade de Macau 3.University of Chinese Academy of Sciences
Recommended Citation GB/T 7714	Ma Z.,Liu X.,Wu E.. Fast boundary artifact reduction algorithm for image deconvolution[J]. Jisuanji Fuzhu Sheji Yu Tuxingxue Xuebao/Journal of Computer-Aided Design and Computer Graphics, 2014, 26(7).
APA	Ma Z.., Liu X.., & Wu E. (2014). Fast boundary artifact reduction algorithm for image deconvolution. Jisuanji Fuzhu Sheji Yu Tuxingxue Xuebao/Journal of Computer-Aided Design and Computer Graphics, 26(7).
MLA	Ma Z.,et al."Fast boundary artifact reduction algorithm for image deconvolution".Jisuanji Fuzhu Sheji Yu Tuxingxue Xuebao/Journal of Computer-Aided Design and Computer Graphics 26.7(2014).

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