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Joint Method of Interference Suppression and Super-Resolution for Chinese Characters Image with Interference
Jiang, Bo1; Hu, Wei1; Liang, Jian2; Zhang, Shouxu3; Ma, Xiaolei4; Zhou, Yan1; Niu, Jinping1; Chen, Xiaoxuan1
作者部门信息光子学研究室
2018
发表期刊MATHEMATICAL PROBLEMS IN ENGINEERING
ISSN1024-123X;2155-3165
产权排序2
摘要

As Chinese characters image often has insufficient photography illumination, or underlines under characters, or low resolution, a joint method of interference suppression and super-resolution for Chinese characters image with interference is proposed. In the stage of interference suppression preprocessing, the technology of image layer separation is used to decompose Chinese characters image into the illumination layer and reflectance layer at first, and reflectance layer that contains the essential property of input image is retained consequently. Then the reflectance layer is decomposed into four coefficient subimages by wavelet transform, and image smoothing via L-0 gradient minimization with different scale factors is adopted to these different coefficient subimages. Subsequently, by a simple background processing and image filtering, the image preprocessing for Chinese characters image with interference is ultimately completed. In the stage of image super-resolution, due to acquisition limitation of a large number of high-resolution Chinese characters images, we adopt neighbor embedding super-resolution method for its advantage of greatly reducing the scale of training set. In the key feature vector of Chinese characters image, the weights of horizontal and vertical stroke features are strengthened; meanwhile, the other stroke features of Chinese characters are also considered. Ultimately, a super-resolution method more suitable for Chinese characters image is proposed. Experimental results show that our method of interference suppression has the superiority for Chinese characters images with aforementioned interference, and our optimized super-resolution method has better performance for test Chinese characters images than bicubic interpolation method and three classical super-resolution methods.

DOI10.1155/2018/4203121
收录类别SCI ; EI
语种英语
WOS记录号WOS:000449192300001
出版者HINDAWI LTD
EI入藏号20184606063135
引用统计
文献类型期刊论文
条目标识符http://ir.opt.ac.cn/handle/181661/30723
专题信息光子学研究室
通讯作者Chen, Xiaoxuan
作者单位1.Northwest Univ, Sch Informat Sci & Technol, Xian 710127, Shaanxi, Peoples R China
2.Chinese Acad Sci, State Key Lab Transient Opt & Photon, Xian 710119, Shaanxi, Peoples R China
3.Northwestern Polytech Univ, Sch Marine Sci & Technol, Xian 710072, Shaanxi, Peoples R China
4.Emory Univ, Dept Phys, Atlanta, GA 30322 USA
推荐引用方式
GB/T 7714
Jiang, Bo,Hu, Wei,Liang, Jian,et al. Joint Method of Interference Suppression and Super-Resolution for Chinese Characters Image with Interference[J]. MATHEMATICAL PROBLEMS IN ENGINEERING,2018.
APA Jiang, Bo.,Hu, Wei.,Liang, Jian.,Zhang, Shouxu.,Ma, Xiaolei.,...&Chen, Xiaoxuan.(2018).Joint Method of Interference Suppression and Super-Resolution for Chinese Characters Image with Interference.MATHEMATICAL PROBLEMS IN ENGINEERING.
MLA Jiang, Bo,et al."Joint Method of Interference Suppression and Super-Resolution for Chinese Characters Image with Interference".MATHEMATICAL PROBLEMS IN ENGINEERING (2018).
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