Adaptive integral time based embedded infrared image superframe processing method

Abstract

The invention provides an adaptive integral time based embedded infrared image superframe processing method, and aims at exerting the advantage of the infrared image superframe processing method on improving the detection sensitivity and dynamic range of an infrared imaging system, effectively solving the shortage that the integral time of acquiring sub-frames in the traditional superframe processing method cannot be adaptively adjusted according to the target scene radiation temperature, as well as guiding well a detector to work in a medium area within the whole response rang. The method comprises the steps of offline calibration and online processing. The invention further provides a correction measure for the problem of non-uniformity of an image caused by the adjusting of the integral time of the detector. The method is an embedded platform based infrared image superframe processing method and does not need any special device during implementing; in addition, the method can be applied to real-time engineering.

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...

AI Technical Summary

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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