3D Reconstruction of Thermal Images

Infrared Thermography (IT) is an imaging technology aimed at the non-invasive measurement of the temperature distribution of the observed object. The capability to capture the temperature map of an object by an imaging device, makes IT an effective solution within Wind Tunnels systems, because it avoids the undesired drawbacks which are typically raised by intrusive diagnostics, like the alteration of the flowfield inside the facility testing chamber. Nevertheless IT, as with any other imaging system, is a bi-dimensional sensing technology unable to provide any direct information about the tridimensional structure of the observed scene. The purpose of this paper is to present both hardware and software components of a system built at the CIRA laboratories, in order to overcome this limitation and retrieve a 3D thermal texture for the observed object from the corresponding thermal images.