文章基本信息

标题：Principal Components Analysis for the Interpretation of Humidification Phenomena—Preliminary Results
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作者：Eva Barreira ; Maria Lurdes Simões ; Ricardo M. S. F. Almeida 等
期刊名称：Proceedings
电子版ISSN：2504-3900
出版年度：2019
卷号：27
期号：1
页码：2
DOI：10.3390/proceedings2019027002
语种：English
出版社：MDPI AG
摘要：Moisture is one of the major causes of building decay, compromising the indoor air quality and the durability of building components. Infrared thermography is a non-destructive technique that can be used to prevent damage caused by the presence of water. In this study, the potential of Principal Component Analysis (PCA) was assessed as a quantitative technique for processing the thermal images captured during 24 hours of water absorption by a lightweight concrete specimen. PCA showed that the first principal component is the one that better explains the phenomenon. The initial instant was the most interesting to identify the water level in the sample and the final instant allowed defining the first 8h as the most relevant.