Hyperspectral imaging device

Abstract

The invention provides a hyperspectral imaging device which retains all incident light energy and improves the resolution of the spectrum. The hyperspectral imaging device provided by the invention comprises a scanning unit for acquiring a series of images of a target; a photoelectric detection unit which modulates the series of images and performs photoelectric conversion to generate image data; and a spectrum processing unit which is used for carrying out calculation processing on the corresponding signals to obtain spectrum distribution information of object points and processing all object points of the target to obtain a hyperspectral image of the target, wherein photoelectric response of pixels of the photoelectric detection unit is modulated, different pixels of the photoelectric detection unit have different photoelectric response curves for light in a researched spectral range, the scanning unit comprises a tunable filter for tuning radiation light, the tunable filter is provided with a rotatable rotary optical filter, the rotation angle range of the rotary optical filter is 0-70 degrees, and a wavelength tuning formula of the tunable filter is shown in description.

Description

technical field [0001] The invention relates to the field of spectral analysis, in particular to a hyperspectral imaging device. Background technique [0002] The existing hyperspectral camera scans the line information of the two-dimensional image to obtain the spectral information of the target, and then generates the corresponding hyperspectral image according to the obtained spectral information, and recognizes the hyperspectral image to complete the target recognition, but the grating used by the hyperspectral camera It will affect the resolution of the image, and the optical path change of the hyperspectral camera is small, and it is impossible to collect spectral images in a large range, resulting in an increase in the accuracy of capturing detailed spectral information related to the object to be measured from the hyperspectral image. Contents of the invention [0003] Therefore, in order to overcome the above-mentioned shortcomings of the prior art, the present in...

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Problems solved by technology

[0002]The existing hyperspectral camera scans the line information of the two-dimensional image to obtain the spectral information of the target, and then generates the corresponding hyperspectral image according to the obtained spectral information. The image is recognized to complete the target recognition, but the grating used by the hyperspectral camera will affect the resolution of the image, and the optical path change of the hyperspectral camera is small, and it is impossible to collect spectral images in a large range, which leads to the improvement of the ability to capture and measure images from hyperspectral images. Accuracy of detailed spectral information related to objects

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