Corrections to spectral restoration of Hadamard coding spectral imager | |
Hu, Bingliang1; Tang, Xingjia1,2; Li, Libo1; Zhang, Geng1; Wang, Shuang1; Yang, Ying1 | |
作者部门 | 光谱成像技术研究室 |
发表期刊 | SPECTROSCOPY LETTERS |
ISSN | 0038-7010;1532-2289 |
产权排序 | 1 |
摘要 | Hadamard coding spectral imaging technology is a computational spectral imaging technology that modulates the target's spectral information and recovers the original spectrum by the inverse transformation. Compared with the dispersive spectrometer, this system has the advantage of better signal-to-noise ratio coming from multi-channel detection under low illumination. However, the coding process of this system is inevitability affected by several errors, including the misalignment of the coding template and the detector, scanning error, bad pixels, and so on. These errors would have an impact on the accuracy of the calculated spectrum. In this paper, we propose a unitive spectral reconstruction model under different errors and design an integrated approach to correct the above-mentioned errors simultaneously, including the bad pixel's correction method with window function smoothing, the coding matrix's correction method by using corrected template matrix to reconstruct coding matrix, and the push-scanning offset's correction method including the inversion of line offset correction and column offset compensation, which could achieve better performance with the increase of spatial dimension. Experimental results on synthesized data and prototype tests show that the proposed correction method is effective in both single noise case and multiple noises condition, it is more accurate than traditional corrections in which only data preprocessing is finished. |
关键词 | Error correction Hadamard encoding spectral imaging spectral restoration |
DOI | 10.1080/00387010.2020.1834409 |
收录类别 | SCI |
语种 | 英语 |
WOS记录号 | WOS:000583462800001 |
出版者 | TAYLOR & FRANCIS INC |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.opt.ac.cn/handle/181661/93779 |
专题 | 光谱成像技术研究室 |
通讯作者 | Tang, Xingjia |
作者单位 | 1.Chinese Acad Sci, Xian Inst Opt & Precis Mech, 17 Informat Ave, Xian, Shaanxi, Peoples R China 2.Xi An Jiao Tong Univ, Sch Math & Stat, Xian, Peoples R China |
推荐引用方式 GB/T 7714 | Hu, Bingliang,Tang, Xingjia,Li, Libo,et al. Corrections to spectral restoration of Hadamard coding spectral imager[J]. SPECTROSCOPY LETTERS. |
APA | Hu, Bingliang,Tang, Xingjia,Li, Libo,Zhang, Geng,Wang, Shuang,&Yang, Ying. |
MLA | Hu, Bingliang,et al."Corrections to spectral restoration of Hadamard coding spectral imager".SPECTROSCOPY LETTERS |
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文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
Corrections to spect(2933KB) | 期刊论文 | 出版稿 | 限制开放 | CC BY-NC-SA | 请求全文 |
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