High-resolution texturing of building facades with thermal images

Marco Scaioni; Elisabetta Rosina; Luigi Barazzetti; Mattia Previtali; Veronica Redaelli

doi:10.1117/12.920613

18 May 2012 High-resolution texturing of building facades with thermal images

Marco Scaioni, Elisabetta Rosina, Luigi Barazzetti, Mattia Previtali, Veronica Redaelli

Proceedings Volume 8354, Thermosense: Thermal Infrared Applications XXXIV; 83540I (2012) https://doi.org/10.1117/12.920613
Event: SPIE Defense, Security, and Sensing, 2012, Baltimore, Maryland, United States

Abstract

This paper presents two methodologies able to map a block of IR thermal and RGB images on 3D models derived from terrestrial laser scanning surveying. Proposed methods stand out from other traditional approaches that are mainly based on the projection of single images through approximate models. The first method is a rigorous photogrammetric orientation through a bundle adjustment integrating both RGB and thermal data. Then, another complementary solution based on the use of a calibrated 'bi-camera' system is illustrated. Both methods allows one to texture building facades (reconstructed with 3D models) with their temperature values. Finally, several products can be extracted and managed in different data processing environments: triangulated models to visualize 3D spatial information and to analyze 3D heating diffusion on the surface; raster datasets (e.g. orthophotos or rectified images) with temperature as radiometric value. Both approaches were tested on different buildings of Politecnico di Milano University, where a restoration project of historical and modern facades is currently work in progress.

Citation Download Citation

Marco Scaioni, Elisabetta Rosina, Luigi Barazzetti, Mattia Previtali, and Veronica Redaelli "High-resolution texturing of building facades with thermal images", Proc. SPIE 8354, Thermosense: Thermal Infrared Applications XXXIV, 83540I (18 May 2012); https://doi.org/10.1117/12.920613

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