Compressed sensing imaging device and method

An imaging device and compressive sensing technology, which can be used in measurement devices, re-radiation of electromagnetic waves, utilization of re-radiation, etc., and can solve problems such as poor applicability and low accuracy of target images.

Pending Publication Date: 2018-03-09
苏州蛟视智能科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The present invention provides a compressed sensing imaging device and method to solve the problems in the prior art that the single-wavelength imaging method has poor applicability and the accuracy of the restored target image is low

Method used

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  • Compressed sensing imaging device and method

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Experimental program
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Embodiment 2

[0049] The difference from Embodiment 1 is that in this embodiment, the multi-channel detection system 20 includes a light receiving unit 230 for collecting the reflected beam of the detection target, a beam splitting unit connected to the light receiving unit, and a A plurality of photodetectors 220 corresponding to the beam splitting unit, each photodetector 220 detects light of one wavelength in the non-monochromatic light source, the beam splitting unit divides the reflected light beam into lights of different wavelengths, through The photodetector 220 corresponding to the wavelength detects. Specifically, the light receiving unit 230 is used to collect the multi-wavelength light beams reflected by the detection target 40 and transmit them to the beam splitting unit. One or more light receiving units 230 can be provided in one-to-one correspondence with the photodetectors 220. In the embodiment, a light receiving unit 230 is provided, and the light receiving unit 230 is lo...

Embodiment 3

[0051]Different from Embodiment 1, in this embodiment, the non-monochromatic light source 110 includes a light source array composed of several monochromatic light sources with different wavelengths. In this embodiment, three monochromatic light sources are taken as an example, which are red light source 111a, green light source 111b, and blue light source 111c. The three light sources can be arranged in dislocations, and the light emitted is independent of each other. They can also be fused by setting optical elements. a beam such as Figure 4 As shown, by arranging the third mirror 50c and the fourth mirror 50d, the beams emitted by the three light sources are merged into one beam, and the third mirror 50c is selected as a mirror that transmits red light and reflects green light , the fourth transflector 50d is selected as the transmissive mirror for red light and green light and blue light reflection, the red light source 111a, the third transflector 50c and the fourth tran...

Embodiment 4

[0054] Such as Figure 5 As shown, the difference from Embodiment 3 is that in this embodiment, the multi-channel detection system 20 includes a light receiving unit 230 for collecting the reflected light beam of the detection target, and a beam splitter connected to the light receiving unit. Unit and several photodetectors 220 corresponding to the beam splitting unit, each photodetector 220 detects light of one wavelength in the non-monochromatic light source, and the beam splitting unit divides the reflected light beam into different wavelengths The light is detected by the photodetector 220 corresponding to the wavelength. Specifically, the light receiving unit 230 is used to collect the multi-wavelength light beams reflected by the detection target 40 and transmit them to the beam splitting unit. One or more light receiving units 230 can be provided in one-to-one correspondence with the photodetectors 220. In the embodiment, a light receiving unit 230 is provided, and the...

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Abstract

The invention discloses a compressed sensing imaging device and method. The imaging device comprises an emitting system, a multi-channel detection system and a central processing system, a non-monochromatic light source in the emitting system emits multi-wavelength light beams, the multi-wavelength light beams are projected to a detection target to be reflected, reflected light with different wavelengths is detected by the multi-channel detection system, detection results of the light with different wavelengths are subjected to parallel processing by the central processing system and subjectedto correlated calculation, and corresponding reconstructed images are obtained; finally, the reconstructed images with different wavelengths are processed with a multi-channel image fusion technologyby a signal processing unit, a final imaging result is obtained, the detection target is detected by the non-monochromatic light source, similar frequency spectrum information and complementary frequency spectrum information based on different wavelengths are obtained, more comprehensive frequency spectrum information of the reconstructed target is obtained, so that image loss caused by air pollutants or water body is reduced, and image reconstruction precision is improved.

Description

technical field [0001] The invention relates to the field of target detection, recognition and imaging, and in particular to a compressed sensing imaging device and method. Background technique [0002] Correlated imaging, also known as ghost imaging, is a quantum or classical correlation characteristic based on light field fluctuations. Through the intensity correlation operation between the reference light field and the target detection light field, the non-definite A new imaging technology that obtains target image information locally. However, the traditional correlation imaging has the problems of high sampling times, long imaging time, and complex system structure, and is not suitable for imaging in complex and changeable environments such as severe weather or water bodies. Compressive Sensing technology is a new signal sampling technology that has emerged in recent years. Different from the traditional Nyquist sampling theorem, this technology synchronizes the signal...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S17/89G01S7/481
CPCG01S7/4814G01S17/89
Inventor 黄帆韩捷飞初宁蔡栋龙涛邹诚
Owner 苏州蛟视智能科技有限公司
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