Solar loading thermography : time-lapsed thermographic survey and advanced thermographic signal processing for the inspection of civil engineering and cultural heritage structures

Authors: Ibarra Castanedo, ClementeSfarra, StefanoKlein, MatthieuMaldague, X.
Abstract: The experimental results from infrared thermography surveys over two buildings externally exposed walls are presented. Data acquisition was performed on a static configuration by recording direct and indirect solar loading during several days and was processed using advanced signal processing techniques in order to increase signal-to-noise ratio and signature contrast of the elements of interest. It is demonstrated that it is possible to detect the thermal signature of large internal structures as well as surface features under such thermographic scenarios. Results from a long-wave microbolometer compared favorably to those from a mid-wave cooled infrared camera for the detection of large subsurface features from unprocessed images. In both cases, however, advanced signal processing greatly improved contrast of the internal features.
Document Type: Article de recherche
Issue Date: 1 May 2017
Open Access Date: Restricted access
Document version: VoR
This document was published in: Infrared physics and technology, Vol. 82, 56–74 (2017)
Alternative version: 10.1016/j.infrared.2017.02.014
Collection:Articles publiés dans des revues avec comité de lecture

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