Depth defect retrieval using the wavelet pulsed phased thermography

Abstract

Pulsed Phased Thermography (PPT) is a known method to process thermograms in pulsed thermography through a Fourier frequency analysis. However, this Fourier transform is limited to a qualitative analysis. This paper shows that the wavelet transform enables to perform both a qualitative and a quantitative analysis. Experimental and simulation results are presented as well.