Short-wave infrared hyperspectral video imaging system based on S matrix slit array

Abstract

The invention discloses a hyperspectral video imaging system based on an S matrix slit array. The hyperspectral video imaging system comprises a telescope, the S matrix slit array, a field diaphragm,a high-precision electric control displacement table, a spectrograph assembly and a data processing module. The S matrix slit array is fixed on a high-precision electric control displacement table, and placed on a primary focal plane of the telescope; the field diaphragm is placed behind the S-matrix slit array, the high-precision electric control displacement table translates to drive the S-matrix slit array to achieve code conversion, a signal is generated to trigger synchronous exposure, and three-dimensional hyperspectral data are reconstructed through the data processing module. On the basis of existing single-slit dispersion type hyperspectral imaging, the S matrix slit array is used for replacing a single slit, the luminous flux of the system is improved, the problem that integration time and frame frequency restrict each other is solved, the video imaging effect is achieved, and the method can be used for real-time high-sensitivity detection of a dynamic target.

Description

Technical field: [0001] The invention discloses a hyperspectral video imaging system based on an S-matrix slit array. As a typical application of hyperspectral computing imaging, this solution uses an S-matrix slit array instead of a single slit to increase the system luminous flux and solve the problem of insufficient integration time under high-speed exposure, thereby realizing fast three-dimensional imaging of the target. It is suitable for use scenarios that have high requirements for real-time imaging. Background technique: [0002] Hyperspectral imaging technology has great application value in many fields such as geological resource exploration, atmospheric environmental protection, and modern agricultural production. In the field of aerospace hyperspectral imaging, the imaging systems are generally divided into three types: sweeping, push-broom and staring. At present, the dispersion-type hyperspectral imaging based on the push-broom imaging system is a more mainstr...

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