红外与毫米波学报2023，Vol.42Issue(1)：50-60,11.DOI:10.11972/j.issn.1001-9014.2023.01.008
基于多视场狭缝的高效信息获取光谱成像系统
Efficient information acquisition spectral imaging system based on multi-field slits
刘世界 1张星宇 2周浩 1李春来 1李东景 1亓洪兴 2王建宇1
作者信息
- 1. 国科大杭州高等研究院,浙江 杭州,310024
- 2. 中国科学院上海技术物理研究所 空间主动光电技术重点实验室,上海 200083
- 折叠
摘要
Abstract
Video spectral imaging technology is an important direction in the development of remote sensing de?tection. It can achieve 4-dimensional information acquisition (two-dimensional space + spectrum + time), which is of great significance for application such as dynamic target detection. The current technical means are mainly based on the filter method, and do not have the high-resolution advantage of grating. Uncoupled Slit Array Scan Hyperspectral imager (uSASHI) and Coded Slit Array Scan Hyperspectral imager (cSASHI) are proposed in this paper, both use multiple slits to achieve simultaneous acquisition of multiple fields of view information to im?prove the information acquisition rate, and enables video-level spectral imaging. The information obtained by each slit of uSASHI will not be coupled, and n slits can achieve n times the improvement of information acquisi?tion efficiency. The slits of cSASHI are arranged according to the compressed sensing theory, which can achieve under-sampling conditions (sampling rate α≤ 1) video spectral imaging, the information acquisition efficiency can be improved by n/α times. The system designed in this paper finally realizes the 1024*490*30 spectral data cube 10 Hz video spectral imaging method, and cSASHI achieves a higher frame rate. The proposed system pro?vides a new direction for the video spectral imaging technology and lays a better foundation for future applica?tions.关键词
视频光谱成像/计算成像/压缩感知/遥感Key words
video spectral imaging/computational imaging/compressed sensing/remote sensing分类
信息技术与安全科学引用本文复制引用
刘世界,张星宇,周浩,李春来,李东景,亓洪兴,王建宇..基于多视场狭缝的高效信息获取光谱成像系统[J].红外与毫米波学报,2023,42(1):50-60,11.
