Geometrical correction and photogrammetric approach in thermographic inspection of buildings

Abstract

Thermography is now commonly used as a tool for the qualitative inspection of buildings, for different purposes such as energy monitoring, moisture mapping and many others. All these controls need to correctly locate in space the different phenomena observed and evaluate the area affected by the phenomena. Furthermore, when thermography is applied quantitatively and fluxes are evaluated, the precise area affected by the process is of paramount importance. This paper intends to approach the issue to obtain a correct three-dimensional reconstruction of the building that will promptly integrate all the information to the surface, such as wall temperature, optical absorption coefficient, etc.