Automatic thermographic inspection of buildings envelope using laser and thermal images

Abstract. This paper describes an automatic system that detects ther-mal insulation properties of the different components of buildings en-velope by combining laser data with thermal images. Sensor data is obtained from a moving vehicle equipped with a GPS sensor. Range data is integrated to obtain the 3D structure of the building facade, and combined with thermal images to separate components such as walls, windows frames and glasses. Thermal leakage is detected by detecting irregularities in the thermal measurements of each component separately.