Calibration registration method based on infrared and visible light images

By using simultaneous shooting and stereo calibration, and employing joint calibration parameters of infrared and visible light images for image preprocessing and distortion correction, the problem of registration of infrared and visible light images in complex scenes is solved, achieving efficient and real-time image registration.

CN121120722APending Publication Date: 2025-12-12SICHUAN JIUZHOU ELECTRIC GROUP CO LTD
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Patent Information

Application Number
CN202511243633.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-09-02
Publication Date
2025-12-12

AI Technical Summary

Technical Problem

Existing infrared and visible light image registration algorithms are unstable in complex scenes, have high computational complexity, and cannot meet real-time requirements.

Method used

By simultaneously capturing images of the calibration board, and using stereo calibration and joint calibration parameters for image preprocessing and distortion correction, efficient registration of infrared and visible light images is achieved.

Benefits of technology

It achieves efficient registration of infrared and visible light images, is applicable to multiple modal images, reduces computational load, improves registration efficiency, and meets real-time requirements.

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Abstract

The invention provides a calibration registration method based on infrared and visible light images, and the method comprises the steps: carrying out the synchronous shooting of a calibration plate through a visible light camera and an infrared camera, and obtaining a plurality of groups of visible light calibration plate images and infrared calibration plate images; synchronously shooting a target scene by using a visible light camera and an infrared camera to obtain a visible light image and an infrared image to be registered; all the collected images are preprocessed; independently calibrating a visible light camera and an infrared camera by using the pre-processed visible light calibration plate image and the pre-processed infrared calibration plate image respectively; jointly calibrating the visible light image and the infrared image to be registered and carrying out image stereo correction; and translating and cutting the image after stereo correction to obtain a registration image. According to the method, the registration problem of the multi-modal image in a complex scene is solved in a mode of combining with stereo correction, the registration efficiency is improved, and the real-time problems such as target identification and target tracking can be solved.
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Citation Information

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