Multispectral imaging method, device and equipment for coding compression based on dispersion

A multi-spectral imaging and coding compression technology, applied in the field of multi-spectral imaging, can solve the problem of inability to collect spectral information with dynamic and high spatial resolution, and achieve the effect of avoiding the optical path modulation process, low cost and simple operation process.

Active Publication Date: 2022-04-05
TSINGHUA UNIV
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Problems solved by technology

[0005] This application provides a multi-spectral imaging method, device and equipment based on dispersion-based encoding and compression to solve the problem that ordinary cameras cannot collect dynamic and high-spatial-resolution spectral information in one shot with a simple system

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  • Multispectral imaging method, device and equipment for coding compression based on dispersion
  • Multispectral imaging method, device and equipment for coding compression based on dispersion
  • Multispectral imaging method, device and equipment for coding compression based on dispersion

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Embodiment Construction

[0050] Embodiments of the present application are described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary, and are intended to explain the present application, and should not be construed as limiting the present application.

[0051] The multispectral imaging method, device and equipment for encoding and compressing based on dispersion according to the embodiments of the present application will be described below with reference to the accompanying drawings. In view of the above-mentioned background technology center, the ordinary camera that only contains three color channels cannot collect dynamic, high-spatial-resolution spectral information in one shot with a simple system, and cannot satisfy the problem of accurate spectra displa...

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Abstract

The invention relates to a multispectral imaging method, device and equipment for coding compression based on dispersion, and the method comprises the steps: carrying out the imaging of a mask based on a high-resolution lens which is provided with glass having a preset angle with an optical axis, and obtaining mask images of different spectrums, which generate different shifts in the horizontal direction, overlapping the collected mask images to obtain a multispectral film mask, collecting the view of the camera pasted with the multispectral film mask under white light, obtaining a scene image subjected to dispersion coding, and performing vectorization calculation on the scene image under a to-be-reconstructed spectrum band; and when the number of calculation times reaches the number of iterations, images of different uncoded spectrums are obtained. Therefore, the problem that a common camera cannot collect dynamic and high-spatial-resolution spectral information in one-time shooting through a simple system is solved, fine features of different spectral bands are distinguished by constructing an imaging system and executing a reconstruction algorithm, and the capacity of reconstructing a multispectral high-resolution image after one-time shooting is improved.

Description

technical field [0001] The present application relates to the technical field of spectral imaging, in particular to a multispectral imaging method, device and equipment for coding and compressing based on dispersion. Background technique [0002] Ordinary cameras collect light intensity information of red, green, and blue colors in nature through specific modes, and image them on sensors. However, in the fields of medical screening, ground remote sensing, etc., there are often high requirements for the precise spectrum that objects show to the world, and ordinary cameras that only contain three color channels can no longer meet the requirements. [0003] A series of hyperspectral cameras have now appeared, and different methods have been used to improve spectral resolution, that is, the ability to distinguish fine features in different spectral bands. The data they acquire is a three-dimensional data cube containing two-dimensional spatial intensity information for differen...

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Application Information

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IPC IPC(8): G01J3/28G01J3/02
Inventor 索津莉张伟航董开明戴琼海
Owner TSINGHUA UNIV
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