Snapshot type hyperspectral imaging chip structure based on spectrum modulation array

Abstract

The invention belongs to the technical field of hyperspectral imaging, and particularly relates to a snapshot type hyperspectral imaging chip structure based on a spectrum modulation array, which comprises a snapshot type hyperspectral imaging chip and a detected light passing lens array, the detected light passing lens array is arranged right below the snapshot type hyperspectral imaging chip, and the detected light passing lens array is arranged right below the snapshot type hyperspectral imaging chip. The snapshot type hyperspectral imaging chip comprises an area array detector and a spectrum modulation array, the area array detector is arranged on the spectrum modulation array, and the spectrum modulation array and detected light are in one-to-one correspondence through the lens array. According to the invention, a light splitting element is not needed, the size is small, the spectral resolution is high, the chip level is realized, hyperspectral imaging detection can be realized through single imaging, and the speed is high; according to the invention, a spectrum modulation array is adopted, a snapshot spectrum transmittance modulation measurement matrix is realized, and hyperspectral imaging is realized in combination with a compressed sensing theory; the system is of a chip level, a front optical system is simple and easy to integrate, scanning is not needed, and the number of spectrum channels is large.

Description

technical field [0001] The invention belongs to the technical field of hyperspectral imaging, in particular to a snapshot type hyperspectral imaging chip structure based on a spectral modulation array. Background technique [0002] With the continuous development of optical imaging information acquisition technology, many spectral information acquisition methods use integrated technology to achieve the simultaneous acquisition of target two-dimensional spectral and spatial information. Spectral imaging technology is a multi-dimensional optical information acquisition technology that combines imaging technology with spectral analysis technology to simultaneously obtain two-dimensional spectral and spatial information of a target object. Therefore, spectral imaging technology is widely used in satellite imaging, military exploration, atmospheric environment monitoring, medical inspection and other fields. However, small spectral imaging methods with high spectral resolution a...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the technical problems that the spectral resolution and time resolution cannot be realized simultaneously in the above-mentioned existing spectral imaging, and the spectral imaging system is complex and bulky, the present invention provides a snapshot hyperspectral imaging chip structure based on a spectral modulation array, through The spectral transmittance modulation realizes the design of the spectral measurement matrix, combined with the compressive sensing spectral inversion algorithm, realizes the multi-channel spectral measurement under a single measurement

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