Terahertz spectral image data processing method and device, equipment and storage medium
A spectral image and processing method technology, which is applied in the field of terahertz spectral image data processing methods, devices, equipment and storage media, can solve the problem of low resolution of terahertz spectral images, and achieve high resolution and high precision of spectral images Effect
Active Publication Date: 2020-01-07
TSINGHUA UNIV
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[0004] However, the terahertz spectral images generated by the above methods have low resolution
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[0047] In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, not to limit the present application.
[0048] The processing method of terahertz spectral image data provided in the embodiment of this application can be applied to such as figure 1In the shown terahertz time-domain spectral imaging system, the system includes a laser, a beam splitter, a time delay device, a terahertz emitting element, a terahertz detecting element, a lock-in amplifier and computer equipment. Among them, the laser is used to generate laser pulses; the time delay is used to adjust the delay time of the terahertz pulse relative to the detection light; the terahertz emitting element is used to generate the terahe...
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The invention relates to a terahertz spectral image data processing method and device, computer equipment and a storage medium. The method comprises the steps of determining a spectrum training subsetcorresponding to each first pixel point from a spectrum library according to a similarity function value between an original spectrum curve of each first pixel point of a first spectrum image cube and a spectrum curve in the spectrum library; reconstructing a first spectral curve of each first pixel point according to the spectral curve in the spectral training subset corresponding to each firstpixel point; and reconstructing a new first spectral image cube according to the first spectral curve of each first pixel point. Compared with the traditional method for directly analyzing and processing the terahertz pulse time domain waveform to generate the terahertz spectral image, the terahertz spectral image data processing method has the advantage that the resolution ratio of the terahertzspectral image generated by the terahertz spectral image data processing method is higher.
Description
technical field [0001] The present invention relates to the technical field of spectral imaging, in particular to a processing method, device, equipment and storage medium for terahertz spectral image data. Background technique [0002] Terahertz wave (terahertz, THz) refers to electromagnetic radiation with a frequency in the range of 0.1 THz to 10 THz. It has the advantages of perspective, low energy non-destructive and spectral resolution characteristics, so it has unique advantages and applications in the field of imaging. At present, terahertz time-domain spectral imaging technology is the earliest and most mature imaging technology in terahertz imaging technology. [0003] The terahertz time-domain spectral imaging technology is to obtain the terahertz time-domain spectral image data by scanning the space and time of the measured object, and analyze and process the terahertz time-domain spectral image data. Image data to generate terahertz spectral images. [0004] H...
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IPC IPC(8): G06T15/00
CPCG06T15/005
Inventor 郑小平曹斌耿华窦站
Owner TSINGHUA UNIV