Abstract:Video spectral imaging technology is an important direction in the development of remote sensing detection. 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 improve 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 acquisition 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 10Hz video spectral imaging method, and cSASHI achieves a higher frame rate. The proposed system provides a new direction for the video spectral imaging technology and lays a better foundation for future applications.