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A Snapshot Imaging Spectrometer Based on Uniformly Distributed-Slit Array (UDA)
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DOI：10.3390/s22093206.png)
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Abstract
En 中文
Herein, we propose a system for a snapshot video hyperspectral imaging method based on a uniformly distributed-slit array (UDA) coding plate that not only effectively improves the scanning speed of spectrometers but also achieves a high spectral fidelity of snapshot videos. A mathematical model and optical link simulation of the new system are established. The analysis results show that the proposed method can more efficiently collect information and restore the spectral data cube, and the spectral smile of the system is less than 4.86 mu m. The results of the spectral performance and external imaging tests of the system show that the system has the ability to collect spatial spectrum video information with a frame rate of 10 Hz and identify dynamic targets, laying a foundation for the design of a system with a higher frame rate and resolution.
Keywords:
snapshot
uniformly distributed-slit array
spectral reconstruction
video spectral imaging
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