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Display and Calibration Method of Colorimetric Temperature Measurement System

A technology of colorimetric temperature measurement and calibration method, which is applied in the field of infrared temperature measurement, to achieve the effects of reducing the output data bandwidth, being portable, and implementing a simple process

Active Publication Date: 2018-03-02
XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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  • Abstract
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  • Application Information

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Problems solved by technology

[0010] In order to overcome the limitations of the current focal plane colorimetric temperature measurement system display and calibration method, the present invention proposes a new focal plane colorimetric temperature measurement system display and calibration method

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  • Display and Calibration Method of Colorimetric Temperature Measurement System
  • Display and Calibration Method of Colorimetric Temperature Measurement System
  • Display and Calibration Method of Colorimetric Temperature Measurement System

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Embodiment Construction

[0050] The overall flow chart of the colorimetric temperature measurement system in the present invention is as follows image 3 As shown, it specifically includes image preprocessing, image registration, information fusion, and temperature calibration. Realize the schematic diagram as Figure 4 As shown, the specific implementation of each step is as follows:

[0051] 1. Image preprocessing

[0052] Ideally, when the infrared focal plane detector is irradiated by uniform light, the output signal amplitude of each pixel should be exactly the same. In fact, due to the inhomogeneity of the semiconductor material used to make the device, mask errors, defects, processes and other factors, the output amplitude will appear uneven, and at the same time there will be some bright or dark spots on the image, which are blind elements ( Also known as invalid elements). Non-uniformity will vary with the temperature of the detector's operating environment. Due to the existence of these...

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Abstract

The invention relates to a display and calibration method of a colorimetric temperature measurement system, which includes 1] preprocessing the transmitted light path image collected by the detector on the transmitted light path and the reflected light path image collected by the detector on the reflected light path; The preprocessed image is registered so that each point on the transmitted light path image has a unique point corresponding to it on the reflected light path image to form a corresponding point, and two points in each set of corresponding points correspond to the same physical position. That is, the image registration is completed; 3] For all the pixels of the two images after registration, calculate the ratio of the gray value of the two points in the corresponding points, and then use the image gray mapping algorithm to correspond the gray value to a suitable display value. On the gray level, the image after information fusion is formed and other steps. This method overcomes the limitations of the ratio and temperature calibration commonly used in current focal plane colorimetric temperature measurement systems and the limitations of separate display of images in the transmitted light path and reflected light path. The implementation process is simple, and it has application and promotion value.

Description

technical field [0001] The invention belongs to the field of infrared temperature measurement, in particular to a display and calibration method for an infrared focal plane colorimetric temperature measurement system. Background technique [0002] Temperature measurement plays an important role in national defense, military affairs, scientific experiments, and industrial and agricultural production. Infrared temperature measurement technology has the advantages of not destroying the temperature field of the measured object, fast response, high sensitivity, and wide temperature measurement range. It is widely used in aerospace, materials, energy, metallurgy and other fields. At present, various infrared temperature measurement methods have appeared at home and abroad, and these methods can be roughly divided into: full radiation temperature measurement method, brightness temperature measurement method, and colorimetric temperature measurement method. The accuracy of the tota...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01J5/00
Inventor 刘伟曹剑中段程鹏陈耀弘谢庆胜易波陈卫宁范哲源
Owner XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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