An adaptive wide temperature range non-uniform correction method and system

A non-uniform correction and wide temperature technology, applied in the field of adaptive wide temperature range non-uniform correction method and system, can solve problems such as saturation and loss of a large number of image details, reduce correction coefficient drift, expand dynamic response range, and strong adaptability sexual effect

Active Publication Date: 2019-07-23
HUBEI JIUZHIYANG INFRARED SYST CO LTD
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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a correction technology and scene based on black body calibration for the defect that there will be saturation phenomenon in the existing technology when the target scene suddenly appears extremely high or low temperature, and then lose a lot of image details. Adaptive correction technology combined, combined with artificial neural network technology and parameter kernel regression technology, adaptive wide temperature range non-uniform correction method and system

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  • An adaptive wide temperature range non-uniform correction method and system
  • An adaptive wide temperature range non-uniform correction method and system
  • An adaptive wide temperature range non-uniform correction method and system

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[0050] In order to make the object, technical solution and advantages of the present invention clearer, the present invention 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 invention, not to limit the present invention.

[0051] Such as figure 1 As shown, the adaptive wide temperature range non-uniform correction method of the embodiment of the present invention includes the following steps:

[0052] S1. Use uniform black body radiation at different temperatures as a reference source to perform segmented calibration, calculate the correction coefficients of pixels at different temperatures, and save the correction coefficients as a standard;

[0053] S2. Acquire infrared images, select appropriate correction coefficients according to different scene temperatures, and automatically adjust the correction coefficients...

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Abstract

The invention discloses an adaptive wide temperature range non-uniform correction method and system. The method includes the following steps: S1. Using uniform blackbody radiation at different temperatures as a reference source to perform segmented calibration, and calculating correction coefficients of pixels at different temperatures , and save the correction coefficient as a standard; S2. Acquire the infrared image, select the appropriate correction coefficient according to different scene temperatures, and automatically adjust the correction coefficient to correct the infrared image according to the kernel regression interpolation technology and artificial neural network algorithm combined with the scene change ; S3 , judging whether the corrected image meets the precision requirement, if the non-uniform correction of the image is not accurate enough, return to step S2 ; if the image meets the precision requirement, complete the correction. The invention realizes scene self-adaptive non-uniform correction, reduces the probability of "ghost image" phenomenon, and realizes non-uniform correction in a wide temperature range.

Description

technical field [0001] The invention relates to the technical field of infrared imaging and infrared image processing, in particular to an adaptive wide temperature range non-uniform correction method and system. Background technique [0002] Infrared focal plane array detectors have become the most advanced infrared detectors in today's technical performance. Its rapid development and wide range of applications make it more and more researched. Infrared focal plane array detectors can be used to make a variety of infrared thermal imager products, among which handheld infrared thermal imagers are small in size and light in weight, and are very popular military equipment in the military fields of various countries. Very huge effect. However, in the process of researching thermal imaging cameras, scientists have discovered some bottlenecks, one of which is the non-uniformity of the infrared focal plane. [0003] There are many non-uniformity correction methods for infrared f...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01J5/00G06T5/00
CPCG06T5/00G01J5/00G01J2005/0077G06T2207/10048G01J5/80
Inventor 岳松陈华旺张智杰赵坤郭良贤余徽
Owner HUBEI JIUZHIYANG INFRARED SYST CO LTD
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