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Projection onto the convex sets model based on non-downsampling contourlet transform and high-frequency iteration

文献类型：期刊论文

作者Ma, Zijie1,2; Ren, Guoqiang1
刊名Electronics Letters
出版日期2020-09-30
卷号56期号:20页码:1054-1056
ISSN号0013-5194
DOI10.1049/el.2020.0364
文献子类期刊论文
英文摘要Obtaining high-resolution images is one of the critical issues in many areas. The super-resolution (SR) algorithm is a method of obtaining a high-resolution image from low-resolution images. The projection onto the convex sets (POCS) iteration method is an essential spatial multiimage SR algorithm. In addition to generating Gibbs artefacts, the traditional POCS algorithm has some restrictions on the image source, such as the signal-to-noise ratio and the resolution of the reference frame. In order to remove the limitation of image source, eliminate artefact, and get more edge information from iteration. This Letter proposes a new POCS iterative model. This Letter uses the high-frequency (HF) image obtained after a non-downsampling contourlet transform as the iteration object. It uses the unique attributes of the HF image to establish a new constrained convex set to construct the iterative formula. In order to make the iteration effect more apparent, this Letter has Laplace enhancement to the reference frame selected by principal component analysis. The experimental results show that the results obtained by the proposed algorithm are satisfactory in both subjective and objective evaluations. © The Institution of Engineering and Technology 2020
语种英语
WOS记录号WOS:000581633600011
源URL[http://ir.ioe.ac.cn/handle/181551/10051]  
专题薄膜光学相机总体室
作者单位1.Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu; 610200, China;
2.University of Chinese Academy of Sciences, Beijing; 100049, China
推荐引用方式
GB/T 7714		 Ma, Zijie,Ren, Guoqiang. Projection onto the convex sets model based on non-downsampling contourlet transform and high-frequency iteration[J]. Electronics Letters,2020,56(20):1054-1056.
APA Ma, Zijie,&Ren, Guoqiang.(2020).Projection onto the convex sets model based on non-downsampling contourlet transform and high-frequency iteration.Electronics Letters,56(20),1054-1056.
MLA Ma, Zijie,et al."Projection onto the convex sets model based on non-downsampling contourlet transform and high-frequency iteration".Electronics Letters 56.20(2020):1054-1056.

入库方式： OAI收割

来源：光电技术研究所

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