Answers are grounded in this paper and cite their sources.
In this paper, the images provided by a flying-spot camera dedicated to open-crack detection are considered. In this contribution, the authors focus on the enhancement of open-crack detection performances in the case of severe surface conditions. After a short description of the principle of the device, the tested structure and the obtained photothermal images are presented. The images are then processed thanks to a modified principal component analysis which allows to separate the thermal and optical effects from the raw images. The detection is then carried out and the performances are characterized thanks to Receiver Operating Characteristic curves.
No takes yet. Share an insight, caveat, or question.
Hermosilla-Lara et al. (2002) studied this question.