FFT spectra based matching algorithm for active dynamic thermography

In Active Dynamic thermography (ADT) sequences of consecutive temperature distributions are analyzed. In biomedical applications of ADT, the problems of a patient's movements in front of a thermal camera should be eliminated before data analysis. Complete mechanical stabilization of the patients is impossible due to natural voluntary and involuntary moves caused by the heart action, breathing, etc. This paper presents a simple and efficient thermal image matching method based on the two dimensional Fast Fourier Transform.