Rapid imaging device and method for millimeter wave security check

A technology of imaging equipment and imaging methods, which is applied to optical-based geological exploration, measurement devices, instruments, etc., can solve problems such as poor real-time performance, large computational load, and large imaging range, so as to shorten imaging time and reduce computational work. amount of effect

Pending Publication Date: 2021-04-16
TSINGHUA UNIV +1
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Problems solved by technology

However, the existing millimeter-wave near-field broadband holographic 3D wavenumber domain imaging method needs to resample the 3D wavenumber domain data through Stolt interpolation during the imaging process, and this method also requires that the range unambiguous range must be larger than the entire imaging where the target may appear Therefore, the existing imaging method has a large imaging range, a large amount of calculation, and poor real-time performance.

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  • Rapid imaging device and method for millimeter wave security check
  • Rapid imaging device and method for millimeter wave security check
  • Rapid imaging device and method for millimeter wave security check

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Embodiment Construction

[0043] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate 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 only for explaining the present invention and should not be construed as limiting the present invention.

[0044] Those skilled in the art will understand that unless otherwise stated, the singular forms "a", "an", "the" and "the" used herein may also include plural forms. It should be further understood that the word "comprising" used in the description of the present invention refers to the presence of said features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, Integers, steps, operations, elements, components, and / or groups thereof. It will be underst...

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Abstract

The invention provides a rapid imaging device and a method thereof. The rapid imaging device comprises an auto-focusing module configured to determine an effective imaging area of a subject, and a three-dimensional tomographic imaging module configured to perform a plurality of tomographic images based on the effective imaging area obtained by the auto-focusing module, and obtain a final image based on tomographic imaging results obtained by the plurality of tomographic images.

Description

technical field [0001] The invention relates to the field of image imaging of security inspection devices, and more specifically, the invention relates to a rapid imaging device and method for millimeter wave security inspection. Background technique [0002] At present, in the field of security inspection image imaging, the millimeter-wave near-field broadband holographic three-dimensional wavenumber domain imaging method is mainly used for imaging. However, the existing millimeter-wave near-field broadband holographic 3D wavenumber domain imaging method needs to resample the 3D wavenumber domain data through Stolt interpolation during the imaging process, and this method also requires that the range unambiguous range must be larger than the entire imaging where the target may appear As a result, the existing imaging methods have a large imaging range, a large amount of calculation, and poor real-time performance. Therefore, there is a need for an improved fast imaging dev...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01V8/00
Inventor 陈志强李元景吴万龙赵自然沈宗俊郑磊程航
Owner TSINGHUA UNIV
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