High-resolution imaging of space target based on compressed sensing
Yu, Congcong1,2; Zhao, Hui1; Zhang, Ling1,2; Wang, Jing1,2; Ge, Rui1,2; Fan, Xuewu1
2019
会议日期2019-05-10
会议地点Guangzhou, China
关键词compressed sensing TVAL3 algorithm super resolution space target
卷号11179
DOI10.1117/12.2539647
英文摘要

Different degradation factors such as Poisson noise, blurring effect, different contrast and different reflectivity and so on will impose severe influences on the imaging process of the non-cooperative space targets with low light intensity and the corresponding image quality is usually poor. In this paper, a two-step reconstruction framework based on compressed sensing (CS) theory is proposed to deal with these degradation factors to improve the quality of the space target images. The proposed algorithm is divided into two steps, the first step is standard compressed sensing based reconstruction, and the second step is super-resolution based on the theory of compressed sensing. Specifically speaking, when the sparsely sampling are obtained, the total variation augmented Lagrangian alternating direction algorithm (TVAL3) is first used to recover the 2D image, which only obtain 25% of the number of pixels in the original image instead of all the pixels in the traditional sampling. Subsequently, the single-frame image super-resolution reconstruction is performed on the captured 2D image, and the super-resolution algorithm based on the dictionary learning is used to realize super-resolution reconstruction, which makes the image resolution doubled. © COPYRIGHT SPIE. Downloading of the abstract is permitted for personal use only.

产权排序1
会议录Eleventh International Conference on Digital Image Processing, ICDIP 2019
会议录出版者SPIE
语种英语
ISSN号0277786X;1996756X
ISBN号9781510630758
内容类型会议论文
源URL[http://ir.opt.ac.cn/handle/181661/31874]  
专题西安光学精密机械研究所_空间光学应用研究室
作者单位1.Space Optics Lab, Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Science, Xi'an; 710019, China;
2.University of Chinese Academy of Sciences, Beijing; 100049, China
推荐引用方式
GB/T 7714
Yu, Congcong,Zhao, Hui,Zhang, Ling,et al. High-resolution imaging of space target based on compressed sensing[C]. 见:. Guangzhou, China. 2019-05-10.
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