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31 January 2013Converting the infrared thermal image into temperature field for
detection the defects inside materials
Infrared thermography inspection is a full-field, non-contact method that allows the defects inside the materials to be detected at one time. However, an interface is required to transfer the gray-level represented infrared image into temperature field for further
evaluation. Based on the theory of radiation and the principle of infrared camera’s signal conversion, a method to convert the gray
level represented infrared thermal image into temperature field is developed. Test of the method on a cup of hot water was done. Thetemperature obtained by the proposed method and a commercial ones agree very well with each other. An average error less than 0.9% was achieved between them.
Terry Y. Chen andMing-Hsuan Kuo
"Converting the infrared thermal image into temperature field for
detection the defects inside materials", Proc. SPIE 8759, Eighth International Symposium on Precision Engineering Measurement and Instrumentation, 87594L (31 January 2013); https://doi.org/10.1117/12.2015771
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Terry Y. Chen, Ming-Hsuan Kuo, "Converting the infrared thermal image into temperature field for
detection the defects inside materials," Proc. SPIE 8759, Eighth International Symposium on Precision Engineering Measurement and Instrumentation, 87594L (31 January 2013); https://doi.org/10.1117/12.2015771