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Method and device for processing terahertz spectral imaging data

A technology of spectral data and spectral imaging, which is applied in measuring devices, spectrometry/spectrophotometry/monochromator, spectrum investigation, etc., can solve the problems of low spectral imaging efficiency and large data volume, and improve spectral imaging Efficiency, the effect of reducing the amount of collection

Active Publication Date: 2021-11-23
TSINGHUA UNIV
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

However, the traditional method needs to collect a large amount of data, resulting in low spectral imaging efficiency

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  • Method and device for processing terahertz spectral imaging data
  • Method and device for processing terahertz spectral imaging data
  • Method and device for processing terahertz spectral imaging data

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Embodiment Construction

[0032] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0033] The processing method of terahertz spectral imaging data provided in the embodiment of this application can be applied to such as figure 1 In the terahertz spectral imaging data processing system shown, the system includes a laser, a beam splitter, a time delay device, a terahertz radiation generating device, a terahertz detecting device, a loc...

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Abstract

The present application provides a method and device for processing terahertz spectral imaging data. The method includes: scanning the object to be tested, collecting initial terahertz spectral data, and extracting hyperspatial data and first hyperspectral data from the initial terahertz spectral data , performing reconstruction processing on the hyperspatial data to obtain second hyperspectral data, and using the first hyperspectral data and the second hyperspectral data as the target terahertz spectral data, the method scans and collects the initial Terahertz spectral data, and extract and reconstruct the initial terahertz spectral data, without the need to add or change additional hardware devices, can reduce the amount of high-space hyperspectral terahertz spectral data collection, thereby improving spectral imaging efficiency.

Description

technical field [0001] The present application relates to the technical field of spectral image processing, in particular to a method and device for processing terahertz spectral imaging data. Background technique [0002] With the development of terahertz technology, the earliest and most mature imaging technology in terahertz detection technology is terahertz time-domain spectral imaging technology. Among them, terahertz spectral imaging technology can not only detect the shape of objects, but also perform spectral analysis and identification, and has great application potential in security inspection and other fields. [0003] Traditionally, asynchronous optical sampling methods, continuously rotating optical delay line methods, and compressive sensing methods using mask modulators have been used. At the same time, increase the number of sampling points in time domain and space domain to realize terahertz high-spatial hyperspectral imaging technology. However, the tradi...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01J3/28G01N21/3586
CPCG01J3/2823G01N21/3586G01J3/28G01J3/10G06V10/803G06V10/143G01J3/2803G01J3/06
Inventor 郑小平曹斌耿华邓晓娇
Owner TSINGHUA UNIV