An Embedded Infrared Image Superframe Processing Method Based on Adaptive Integration Time

Abstract

The invention provides an embedded infrared image super-frame processing method based on adaptive integration time, the purpose of which is to utilize the advantages of the infrared image super-frame processing method to improve the detection sensitivity and dynamic range of the infrared imaging system, and effectively solve the problem of traditional super-frame processing In the method, the integration time of acquiring subframes cannot be adaptively adjusted according to the radiation temperature of the target scene, so as to better guide the detector to work in the middle area of ​​the entire response range. The invention includes two stages of off-line calibration and on-line processing. The invention also provides correction measures for the image non-uniformity problem caused by the adjusted integration time of the detector. The invention is an infrared image super-frame processing method based on an embedded platform, does not need any special device in the realization process, and can realize the real-time engineering application of the method.

Description

technical field [0001] The invention relates to an embedded infrared image superframe processing method based on self-adaptive integration time, belonging to the technical field of infrared imaging. Background technique [0002] Due to the many advantages of infrared imaging systems, in addition to being widely used in the field of national defense, it is also receiving more and more attention in civilian fields such as security, meteorology, medical treatment, and industrial inspection. In recent years, with the rapid development of some basic research related to infrared imaging technology, and the increasing demand for objective applications, the research and development of infrared imaging systems with high sensitivity and large dynamic range has become a continuous trend in the industry. The goal to pursue. [0003] As the core component of the infrared imaging system, the infrared detector realizes the conversion of infrared radiation to photocurrent. The function of...

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Problems solved by technology

[0007] The present invention proposes an embedded infrared image super-frame processing method based on self-adaptive integration time, the purpose of which is to utilize the advantages of the infrared image super-frame processing method to improve the detection sensitivity of the infrared imaging system and expand the dynamic range of the infrared imaging system. Effectively solve the problem that the integration time of sub-frame acquisition in the traditional super-frame processing method cannot be adaptively adjusted according to the radiation temperature of the target scene, and better guide the detector to work in the ideal area of ​​the entire response range

[0008] In addition, the present invention also proposes a correction measure for image inhomogeneity caused by the adjustment of the detector integration time, so as to solve or suppress the image inhomogeneity problem caused by the adjustment of the detector integration time

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