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Super-resolution imaging method and system, storage medium and equipment

A super-resolution imaging and super-resolution technology, which is applied in the field of optical imaging, can solve the problems of high application cost and unsuitable optical system transformation, and achieve the effect of reducing costs

Pending Publication Date: 2022-04-29
QINGDAO TECHNOLOGICAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the inventors found that the current super-resolution imaging technology requires multiple images or multiple sensors, and its application cost is relatively high, so it is not suitable for the transformation of existing optical systems

Method used

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  • Super-resolution imaging method and system, storage medium and equipment
  • Super-resolution imaging method and system, storage medium and equipment
  • Super-resolution imaging method and system, storage medium and equipment

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Experimental program
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Embodiment 1

[0033] refer to Figure 6 , the present embodiment provides a super-resolution imaging method, which specifically includes the following steps:

[0034] S101: Acquire a defocused image.

[0035] In step S101, after the defocus distance is determined, a defocus image is acquired.

[0036] In a specific implementation process, the image sensor is moved back and forth on the image plane of the optical system to determine the focal plane position L1 of the optical system. Adjust the image plane position L2 of the imaging system so that the main lobe energy cross-sectional size of the star point image of the optical system occupies more than two pixels, such as figure 1 As shown, fix the image sensor, record the defocus distance Δf=L1-L2, and use the image sensor to collect the defocus image I1, as shown in figure 2 shown.

[0037] Due to the introduction of defocus, the sub-pixel information is also recorded in adjacent pixels, which provides physical feasibility for super-re...

Embodiment 2

[0048] Such as Figure 7 As shown, this embodiment provides a super-resolution imaging system, which specifically includes the following modules:

[0049] A defocused image acquisition module, which is used to acquire a defocused image;

[0050] The out-of-focus image processing module is used to calculate the square of the amplitude of the field distribution complex function of the out-of-focus image corresponding to the out-of-focus plane to obtain the light intensity distribution of the point spread function of the optical system; the out-of-focus image is geometrically enlarged to the required multiple to obtain the enlarged out-of-focus image;

[0051] The super-resolution image calculation module is used to combine the enlarged defocused image with the point spread function of the optical system according to the mathematical relationship between the enlarged defocused image and the convolutional mathematical relationship between the light intensity distribution and the ...

Embodiment 3

[0054]This embodiment provides a computer-readable storage medium, on which a computer program is stored, and when the program is executed by a processor, the steps in the above-mentioned super-resolution imaging method are realized.

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Abstract

The invention belongs to the technical field of optical imaging, and provides a super-resolution imaging method and system, a storage medium and equipment. The super-resolution imaging method comprises the following steps: acquiring an out-of-focus image; calculating the square of the complex function amplitude of the out-of-focus plane field distribution corresponding to the out-of-focus image to obtain the point spread function light intensity distribution of the optical system; geometrically amplifying the out-of-focus image to a required multiple to obtain an amplified out-of-focus image; and according to a convolution mathematical relationship that the amplified out-of-focus image is equal to the point spread function light intensity distribution of the optical system and the super-resolution image, carrying out inverse convolution processing on the amplified out-of-focus image and the point spread function light intensity distribution of the optical system to obtain a super-resolution image corresponding to the out-of-focus image.

Description

technical field [0001] The invention belongs to the technical field of optical imaging, and in particular relates to a super-resolution imaging method, system, storage medium and equipment. Background technique [0002] The statements in this section merely provide background information related to the present invention and do not necessarily constitute prior art. [0003] The image details of optical imaging are often limited by the resolution of the image sensor. If a higher image resolution is obtained, it is often impossible to achieve without related sensors. Super-resolution imaging technology is a new technology, which can deduce high-resolution images based on low-resolution image information, and has the advantage of low cost. [0004] However, the inventors found that the current super-resolution imaging technology requires multiple images or multiple sensors, and its application cost is relatively high, so it is not suitable for the transformation of existing opt...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T3/40
CPCG06T3/4053G06T2207/20081G06T2207/20084
Inventor 邵晶韩素立林海波董浩
Owner QINGDAO TECHNOLOGICAL UNIVERSITY