Hyperspectral imaging device
A hyperspectral imaging and spectral technology, applied in the field of spectral analysis, can solve the problems of affecting image resolution and unable to capture spectral information, and achieve the effects of improving resolution, spectral recognition sensitivity, and portability
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[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, making it impossible to capture detailed spectral information related to the object to be measured from the hyperspectral image
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[0014] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with specific embodiments and with reference to the accompanying drawings.
[0015] like figure 1 As shown, the hyperspectral imaging device 100 of this embodiment includes a scanning unit 10 , a photodetection unit 20 and a spectrum processing unit 30 .
[0016] The scanning unit 10 is used to scan the target along the modulation direction of the spectral sieve to obtain a series of images of the target. The scanning unit 10 may include an imaging lens and a scanning driving part. The imaging lens can be composed of lenses, mirrors or combinations thereof. The radiant light emitted by the object to be measured is collected and collimated by the imaging lens. The imaging lens can choose different focal lengths according to different needs to ensure that the radiant light emitted by the target i...
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The invention provides a hyperspectral imaging device which retains all incident light energy and improves spectral resolution. The hyperspectral imaging device comprises: a scanning unit used for scanning a target along the modulation direction of a spectral sieve to obtain a series of images of the target; a photoelectric detection unit which is used for modulating the series of images and carrying out photoelectric conversion to generate image data, wherein the image data comprises pixel information experienced by an object point of the monitoring target in the moving process on a phase plane and generated corresponding signals; a spectrum processing unit which is used for carrying out calculation processing on the corresponding signals to obtain spectrum distribution information of theobject points and processing all the 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, so that different pixels of the photoelectric detection unit have different photoelectric response curves for the light in the researched spectral range.
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, making it impossible to capture 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 invention provides a hyperspectral imaging device that preserves all incident light energy and improves spectral resolution. [0004] In order to achieve t...
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IPC IPC(8): G01J3/28
CPCG01J3/2823
Inventor 缪同群