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Method and device for removing optical aberration based on light field information

An optical aberration and light field image technology, applied in image analysis, graphic image conversion, image data processing, etc., can solve the problems of inaccurate reconstruction results and complex reconstruction process, achieve accurate three-dimensional reconstruction results, and simplify the reconstruction process. Effect

Active Publication Date: 2022-07-19
TSINGHUA UNIV
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Problems solved by technology

These aberrations can lead to inaccurate reconstruction results
In addition, since the point spread function of the actual collection is different from that of the simulation, it is generally necessary to calibrate the point spread function of the system, which makes the reconstruction process more complicated

Method used

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  • Method and device for removing optical aberration based on light field information
  • Method and device for removing optical aberration based on light field information
  • Method and device for removing optical aberration based on light field information

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Embodiment Construction

[0041] The following describes in detail the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary, and are intended to explain the present invention and should not be construed as limiting the present invention.

[0042] The following describes the method and device for removing optical aberration based on light field information according to the embodiments of the present invention with reference to the accompanying drawings.

[0043] First, a method for removing optical aberration based on light field information according to an embodiment of the present invention will be described with reference to the accompanying drawings.

[0044] figure 1 This is a flowchart of a method for removing optica...

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Abstract

The invention discloses a method and device for removing optical aberration based on light field information, wherein the method includes: acquiring a light field image of a fluorescent sample, and rearranging the light field image to obtain sub-aperture images of the fluorescent sample at different angles; Calculate the displacement of each sub-aperture image relative to the central aperture image, obtain a displacement map according to the calculated displacement, calculate the phase on the corresponding frequency domain according to the displacement map and obtain the phase map; process the phase map to obtain the correct phase Figure, the correct phase map is added to the simulation of the point spread function, a new sub-aperture point spread function is obtained, and the correct three-dimensional information of the fluorescent sample is obtained according to the new sub-aperture point spread function. The method can eliminate the aberration of the optical system and the spatial inconsistency caused by the environmental sample, and use the light field information to carry out accurate three-dimensional reconstruction without the need to calibrate the point spread function, which simplifies the reconstruction process.

Description

technical field [0001] The present invention relates to the technical field of light field imaging, in particular to a method and device for removing optical aberration based on light field information. Background technique [0002] Light field imaging is a fast volume imaging method that records 4D light field information by adding a microlens array to the light path. Since the light field simultaneously records the spatial and angular information, the three-dimensional information of the scene can be obtained by processing a single or multiple light field images. [0003] In macroscopic imaging scenarios, optical elements such as lenses introduce aberrations; in microscopic imaging, aberrations are caused by scattering from the sample and the optical path. These aberrations can lead to inaccurate reconstruction results. In addition, due to the difference between the actual acquired point spread function and the simulation, it is generally necessary to calibrate the point...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T3/40G06T7/70G06T17/00
CPCG06T17/00G06T7/70G06T3/4023G06T3/4038
Inventor 戴琼海张亿季向阳吴嘉敏
Owner TSINGHUA UNIV
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