Detection of thermal bridges from thermographic images for the analysis of buildings energy performance

2017/08/04 by Asdrubali, Francesco, Baldinelli, Giorgio, Bianchi, Francesco +4
#41A30 #65C99 #65D15 #65T99 #FOS: Mathematics #Numerical Analysis (math.NA)

paper · doi:10.48550/arxiv.1708.01463

Abstract

In this paper, we develop a procedure for the detection of the contours of thermal bridges from thermographic images, in order to study the energetic performance of buildings. Two main steps of the above method are: the enhancement of the thermographic images by an optimized version of the mathematical algorithm for digital image processing based on the theory of sampling Kantorovich operators, and the application of a suitable thresholding based on the analysis of the histogram of the enhanced thermographic images. Finally, an accuracy improvement of the parameter that defines the thermal bridge is obtained.

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