Calibration method of visible light and infrared camera based on edge detection

Yu Zou; Honghuai Mo; Yuanchun Wang; Duan Luo; Chuncheng Chen

doi:10.1117/12.2681529

23 May 2023 Calibration method of visible light and infrared camera based on edge detection

Yu Zou, Honghuai Mo, Yuanchun Wang, Duan Luo, Chuncheng Chen

Proceedings Volume 12645, International Conference on Computer, Artificial Intelligence, and Control Engineering (CAICE 2023); 126451N (2023) https://doi.org/10.1117/12.2681529
Event: International Conference on Computer, Artificial Intelligence, and Control Engineering (CAICE 2023), 2023, Hangzhou, China

Abstract

Visible and infrared cameras can solve the practical problem of high-resolution image recognition in complex operation scenes of substations, but the prerequisite is that visible and infrared cameras need to be calibrated effectively. In this paper, a calibration method of visible light and infrared camera based on edge detection is proposed. The method adopts a visible light camera and an infrared camera to shoot two images of the same calibration plate, namely a visible light image and an infrared image, and implements preprocessing. It detects the edges of two images, extracts feature point description information by using a scale invariant feature conversion algorithm and determines four groups of determined matching point pairs. It solves a transformation model by combining an internal parameter matrix to obtain an external parameter matrix and realizes visible light and infrared camera calibration. The results verify that the parallel equipotential error is less than zero. One under the application of the method, which indicates that the calibration effect of the method is better.

Citation Download Citation

Yu Zou, Honghuai Mo, Yuanchun Wang, Duan Luo, and Chuncheng Chen "Calibration method of visible light and infrared camera based on edge detection", Proc. SPIE 12645, International Conference on Computer, Artificial Intelligence, and Control Engineering (CAICE 2023), 126451N (23 May 2023); https://doi.org/10.1117/12.2681529

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KEYWORDS

Calibration

Infrared cameras

Visible radiation

Cameras

Edge detection

Infrared imaging

Camera calibration

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