Study on the influence of spectral overflow and its correction method of push broom static hadamard transform spectral imager | |
Zhou, Yingshu1,2; Gao, Xiaohui1; Liu, Jie1; Liu, Xuebin1 | |
2023 | |
会议名称 | 2022 Applied Optics and Photonics China: Optical Spectroscopy and Imaging, AOPC 2022 |
会议录名称 | AOPC 2022: Optical Spectroscopy and Imaging |
卷号 | 12558 |
会议日期 | 2022-12-18 |
会议地点 | Virtual, Online, China |
出版者 | SPIE |
产权排序 | 1 |
摘要 | Hadamard transform spectral imaging technology has high signal-To-noise ratio and the advantage in energy distribution. In recent decades, related works focus on dynamic coding Hadamard spectral imager instead of static coding ones. The latter has great potential value in spaceborne and airborne applications, but the accuracy of its restored spectral image data is poor at present. Therefore, it is necessary to further study the formation mechanism and correction method of errors in static coding Hadamard spectral imager. In this paper, the influencing mechanism and correction method of spectral overflow are studied. Firstly, the imaging and restoration process of the Hadamard coding spectral imager with spectral overflow is mathematically deduced, and the conclusion is compared with the simulated restoration results. Secondly, the simulated results are compared with the experimental data, verifying that spectral overflow is an important source of the error in experimental results. Finally, a correction method for eliminating spectral overflow errors under certain conditions is proposed, and the effectiveness of the method is verified by simulation. This paper can provide reference for the design and data restoration of static coding Hadamard spectral imager. © COPYRIGHT SPIE. Downloading of the abstract is permitted for personal use only. |
关键词 | spectral imaging hadamard encoding hadamard transform push broom spectral overflow error correction spectral image restoration simulation |
作者部门 | 光谱成像技术研究室 |
DOI | 10.1117/12.2647236 |
收录类别 | EI |
ISBN号 | 9781510662308 |
语种 | 英语 |
ISSN号 | 0277786X;1996756X |
EI入藏号 | 20230713574415 |
引用统计 | |
文献类型 | 会议论文 |
条目标识符 | http://ir.opt.ac.cn/handle/181661/96360 |
专题 | 光谱成像技术研究室 |
通讯作者 | Gao, Xiaohui |
作者单位 | 1.Xi an Institute of Optics and Precision Mechanics of CAS, Xi'an; 710119, China; 2.University of Chinese Academy of Science, Beijing; 100049, China |
推荐引用方式 GB/T 7714 | Zhou, Yingshu,Gao, Xiaohui,Liu, Jie,et al. Study on the influence of spectral overflow and its correction method of push broom static hadamard transform spectral imager[C]:SPIE,2023. |
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