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7 March 2019 A fast infrared thermal imaging detection method based on spatial correlation
Libing Bai, Xue Chen, Yuhua Cheng, Lulu Tian, Bin Liu, Haichao Yu
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Proceedings Volume 11053, Tenth International Symposium on Precision Engineering Measurements and Instrumentation; 110530C (2019) https://doi.org/10.1117/12.2511101
Event: 10th International Symposium on Precision Engineering Measurements and Instrumentation (ISPEMI 2018), 2018, Kunming, China
Abstract
The existing infrared thermal imaging detection methods usually process the whole video stream data collected by a thermal camera, which involve large amounts of data and have a negative effect on the efficiency of defect detection. In this paper, we propose an infrared thermal imaging detection method which considers the spatial correlation of the adjacent images in the video stream data. By extracting the edge information and analyzing the correlation between two adjacent frames, the defect area and the non-defect area show different correlation coefficients, and only part of the video data is required for defect detection. Furthermore, the fusion method is introduced to enhance the image quality. The experiment results demonstrate that the proposed method can not only reflect the change of heat in the defect area during the heating process but also reduce computation time involved in the subsequent processing.
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Libing Bai, Xue Chen, Yuhua Cheng, Lulu Tian, Bin Liu, and Haichao Yu "A fast infrared thermal imaging detection method based on spatial correlation", Proc. SPIE 11053, Tenth International Symposium on Precision Engineering Measurements and Instrumentation, 110530C (7 March 2019); https://doi.org/10.1117/12.2511101
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KEYWORDS
Thermography
Image fusion
Infrared imaging
Image processing
Defect detection
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