Infrared thermography also commonly referred as thermal imaging, or simply thermography, is a nondestructive testing (NDT) technique that has received vast and growing attention for diagnostics and monitoring in the last few decades. This is mainly due to the fact that commercial infrared or thermal cameras, the main instrument for performing infrared thermography, are continuously improving in both sensibility and in spatial resolution, and they are getting faster and relatively less expensive. Every year or so, it is possible to acquire a better camera for about the same cost as the preceding model from the year before.