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Nonparametric Illumination Correction for Scanned Document Images via Convex Hulls

文献类型：期刊论文

作者Meng, Gaofeng1; Xiang, Shiming1; Zheng, Nanning2; Pan, Chunhong1
刊名IEEE TRANSACTIONS ON PATTERN ANALYSIS AND MACHINE INTELLIGENCE
出版日期2013-07-01
卷号35期号:7页码:1730-1743
关键词Document image processing illumination correction scanning artifacts dark border noise convex hull
英文摘要A scanned image of an opened book page often suffers from various scanning artifacts known as scanning shading and dark borders noises. These artifacts will degrade the qualities of the scanned images and cause many problems to the subsequent process of document image analysis. In this paper, we propose an effective method to rectify these scanning artifacts. Our method comes from two observations: that the shading surface of most scanned book pages is quasi-concave and that the document contents are usually printed on a sheet of plain and bright paper. Based on these observations, a shading image can be accurately extracted via convex hulls-based image reconstruction. The proposed method proves to be surprisingly effective for image shading correction and dark borders removal. It can restore a desired shading-free image and meanwhile yield an illumination surface of high quality. More importantly, the proposed method is nonparametric and thus does not involve any user interactions or parameter fine-tuning. This would make it very appealing to nonexpert users in applications. Extensive experiments based on synthetic and real-scanned document images demonstrate the efficiency of the proposed method.
WOS标题词Science & Technology ; Technology
类目[WOS]Computer Science, Artificial Intelligence ; Engineering, Electrical & Electronic
研究领域[WOS]Computer Science ; Engineering
关键词[WOS]MARGINAL NOISE REMOVAL ; SHADING CORRECTION ; PRINTED MATERIALS ; 2 DIMENSIONS ; BOOK ; BINARIZATION ; ALGORITHMS ; DISTORTION ; BOUNDARY ; POINTS
收录类别SCI
语种英语
WOS记录号WOS:000319060600015
源URL[http://ir.ia.ac.cn/handle/173211/3712]  
专题自动化研究所_模式识别国家重点实验室_遥感图像处理团队
作者单位1.Chinese Acad Sci, Inst Automat, Natl Lab Pattern Recognit, Beijing 100190, Peoples R China
2.Xi An Jiao Tong Univ, Inst Artificial Intelligence & Robot, Xian 710049, Peoples R China
推荐引用方式
GB/T 7714		 Meng, Gaofeng,Xiang, Shiming,Zheng, Nanning,et al. Nonparametric Illumination Correction for Scanned Document Images via Convex Hulls[J]. IEEE TRANSACTIONS ON PATTERN ANALYSIS AND MACHINE INTELLIGENCE,2013,35(7):1730-1743.
APA Meng, Gaofeng,Xiang, Shiming,Zheng, Nanning,&Pan, Chunhong.(2013).Nonparametric Illumination Correction for Scanned Document Images via Convex Hulls.IEEE TRANSACTIONS ON PATTERN ANALYSIS AND MACHINE INTELLIGENCE,35(7),1730-1743.
MLA Meng, Gaofeng,et al."Nonparametric Illumination Correction for Scanned Document Images via Convex Hulls".IEEE TRANSACTIONS ON PATTERN ANALYSIS AND MACHINE INTELLIGENCE 35.7(2013):1730-1743.

入库方式： OAI收割

来源：自动化研究所

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