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Reconstruction method for calculating multispectral imaging map based on compressed sensing

A multi-spectral imaging and compressed sensing technology, which is applied in computing, image enhancement, spectrum investigation, etc.

Active Publication Date: 2014-11-19
SHANGHAI INST OF TECHNICAL PHYSICS - CHINESE ACAD OF SCI
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Problems solved by technology

In terms of detectors, unit detectors are used to solve bottleneck problems such as the failure of large-scale integration of domestic mid-to-far infrared detectors and the non-uniformity of the detector itself.

Method used

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  • Reconstruction method for calculating multispectral imaging map based on compressed sensing
  • Reconstruction method for calculating multispectral imaging map based on compressed sensing
  • Reconstruction method for calculating multispectral imaging map based on compressed sensing

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Embodiment Construction

[0063] Combine below figure 1 A better example of the present invention is given, mainly for further detailed description, but not for limiting the scope of the present invention.

[0064] (1) First determine the basic technical parameters of the components used in each module of the system. The details are as follows: the telescope imaging module 1 adopts the telescope of Edmund Optics (Shenzhen) Co., Ltd., the selected focal length is 304.8mm, and the aperture is 101.6mm; the digital micromirror DMD and the control module 2 adopt the DMD produced by TI Company of the United States, and the technical indicators It is 1024×768 pixels, and the pixel size is 13.69 μm. The control board adopts TI-Discovery-4100 matched with it; the focal length of the optical convergence lens 3 is 40mm; The spectral bands are 650nm, 540nm, and 470nm; the single-pixel photomultiplier tube PMT 5 adopts the H5784-01 product of Hamamatsu Photonics K.K. The working spectrum is 300nm-900nm, the pixel ...

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Abstract

The invention discloses a reconstruction method for calculating a multispectral imaging map based on compressed sensing. The method of the invention is implemented based on a system composed of a telescope imaging module, a digital micro-mirror device DMD and control module, an optical converging lens, an optical filter wheel, a photomultiplier tube PMT, a data acquisition module, and a multispectral image reconstruction module. The system modulates the spatial information of a target scene according to the mathematical form of a preset modulation template, and carries out inversion by a subsequent data calculation method to obtain the multispectral image of the target scene. The reconstruction method has the following advantages: no scanning is needed, only a small amount of data is required for target scene image reconstruction, the detection sensitivity is high, and the structure is simple.

Description

technical field [0001] The invention relates to the fields of computational spectral imaging technology, multi-spectral image reconstruction algorithm, signal processing and the like. In particular, it relates to a reconstruction method of computational multispectral imaging atlas based on compressed sensing. Background technique [0002] Multispectral and hyperspectral imaging technology (see Document 1) is based on the spectral analysis theory of matter, involving optical system design, imaging technology, photoelectric detection, signal processing and information mining, spectral information transmission theory, research on spectral characteristics of ground objects, etc. , is one of the most important space-to-Earth observation technical means at present. Because hyperspectral imaging technology can simultaneously obtain two-dimensional spatial information and spectral information of the target scene, it is widely used in food safety detection, detection and identificat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01J3/28G06T5/50
Inventor 马彦鹏舒嵘亓洪兴葛明锋王义坤王雨曦
Owner SHANGHAI INST OF TECHNICAL PHYSICS - CHINESE ACAD OF SCI
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