Rapid spectral imaging system and method based on sub-sampling
A technology of spectral imaging and imaging method, applied in the field of image processing, can solve problems such as unfavorable application, prolonged acquisition time, etc., and achieve the effect of good effect and simple hyperspectral image separation.
Pending Publication Date: 2022-01-07
南京知谱光电科技有限公司
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If you need to collect high-resolution spectral images, you need to use a high-order coding matrix, and the acquisition time is greatly extended, which is not conducive to its application in scenarios that require transient measurements
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[0044] The present invention is described in further detail now in conjunction with accompanying drawing. These drawings are all simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, so they only show the configurations related to the present invention.
[0045] Such as figure 1 As shown, the fast spectral imaging system based on sub-sampling of the present invention includes a hyperspectral data acquisition system and a spectral image super-resolution reconstruction network, and the hyperspectral data acquisition system includes an objective lens, a DMD, a collimator, a total reflection prism, a grating, A focusing lens and a CCD camera, the hyperspectral data acquisition system is a hyperspectral data acquisition device based on a Hadamard transform spectrometer,
[0046] The basic principle of the Hadamard Transform Spectrometer (HTS) is the weighing theory in statistics: when there are several physical qua...
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The invention relates to a rapid spectral imaging system and method based on sub-sampling, and belongs to the technical field of image processing. The rapid spectral imaging system comprises a hyperspectral data acquisition system and a spectral image super-resolution reconstruction network. The hyperspectral data acquisition system comprises an objective lens, a DMD, a collimating lens, a total reflection prism, a grating, a focusing lens and a CCD camera. The rapid spectral imaging method comprises the following steps: S1, making a Hadamard matrix coding template; S2, acquiring a spectrum; S3, reconstructing the spectrum into a spectrum image, inversing the Hadamard matrix coding template of each order, multiplying the inversed Hadamard matrix coding template with the collected matrix, carrying out dimension conversion and classifying and comparing the reconstructed spectral images coded by the coding templates of all orders; and S4, carrying out super-resolution reconstruction on the spectral image reconstructed in the step S3. According to the method, the coding times can be effectively reduced, the spectral image reconstruction speed is improved, rapid spectral reconstruction is realized, and the hyperspectral image super-resolution is realized through the deep learning neural network.
Description
technical field [0001] The invention relates to a fast spectral imaging system based on subsampling, and also relates to a fast spectral imaging method based on subsampling, which belongs to the technical field of image processing. Background technique [0002] Various emerging applications in the new era put forward higher requirements for the performance of spectral measurement equipment. For example, for imaging spectrometers, since the collected data is a three-dimensional data cube, the amount of data increases exponentially. In remote sensing monitoring and other fields, if high image resolution and high spectral resolution data are required, it will inevitably lead to excessive data volume, difficult data transmission, and long reconstruction time. Moreover, the fixed overall light intensity of the scene also makes it difficult to have both image resolution and spectral resolution. Therefore, other means need to be explored to solve such problems. [0003] For trad...
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IPC IPC(8): G01J3/28G06N3/04G06N3/08G06T3/40
CPCG01J3/2823G06T3/4053G06T3/4046G06N3/084G01J2003/283G06N3/045
Inventor 赵壮韩静陆骏张毅谢辉
Owner 南京知谱光电科技有限公司