Thermographic survey of two rural buildings in Spain

Ocaña, Silvia; Guerrero, Ignacio Cañas; Requeña, Ignacio

doi:10.1016/j.enbuild.2003.12.012

Cited by 89 publications

(26 citation statements)

References 5 publications

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“…Technological advances, such as thermography [19,20], allowed for a better understanding of building envelopes. Comparisons between historic and new building techniques [19,21], indoor air condition analyses [22][23][24], and inhabitants' surveys were also introduced during that time [21,25].…”

Section: History Of the Publications On Historic Buildingsmentioning

confidence: 99%

Energy efficiency and thermal comfort in historic buildings: A review

Martínez-Molina

Tort-Ausina

Cho

et al. 2016

Renewable and Sustainable Energy Reviews

330

143

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a b s t r a c tIn recent years, energy efficiency and thermal comfort in historic buildings have become high-interest topics among scholars. Research has demonstrated that retrofitting buildings to current energy efficiency and thermal comfort standards is essential for improving sustainability and energy performance and for maintaining built heritage of historic structures. This study is an extensive overview of the literature surrounding this topic. This paper summarizes the different methods and techniques that have been used around the world to achieve performance refurbishments. Articles are organized based on the different building types used as case studies (residential, religious, academic and palace, museums, libraries and theaters, urban areas, and others). The results reveal that residential, religious and museum building types, especially from the last two centuries, have been most often used as case studies. Moreover, Europe, particularly Italy, is leading the research. The aim of this note is to demonstrate the feasibility of maintaining built heritage values of historic buildings while achieving significant improvements in their energy efficiency and thermal comfort.

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Section: History Of the Publications On Historic Buildingsmentioning

confidence: 99%

Energy efficiency and thermal comfort in historic buildings: A review

Martínez-Molina

Tort-Ausina

Cho

et al. 2016

Renewable and Sustainable Energy Reviews

330

143

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“…From the thermographic point of view, the survey should be carried out before sunrise, in order to avoid surface heating by direct radiation of the sun; and it must not have rained 24 hours prior to the survey, so that wet surfaces are due to interior dampness and not to rainwater [1]. On the other hand, with the aim of making the subsequent image-matching process possible, image acquisition must include two images of the object from the same angle, that are named overlapping pairs [9] due to their high overlapping surface (90-95%).…”

Section: Data Acquisitionmentioning

confidence: 99%

“…Infrared thermography is the technique of measuring infrared radiation emitted by bodies, proportionally dependent on their superficial temperature [1]. Thanks to this, infrared thermography is a technique applicable to many different fields, such as medicine, fire detection, mechanical and electrical maintenance, and building inspection, among others.…”

Section: Introductionmentioning

confidence: 99%

Automation of Thermographic 3D Modelling through Image Fusion and Image Matching Techniques

Lagüela¹,

Armesto²,

González-Jorge³

et al. 2011

28th International Symposium on Automation and Robotics in Construction (ISARC 2011)

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Infrared thermography has proved to be an adequate technique for building inspection, as it can be used to determine energy efficiency through the measurement of heat losses, air leaks and infiltrations, and also to detect humidity areas. These parameters have great influence in energy consumption of buildings and in their users' well-being, which is demonstrated by the appearance of regulations as the Directive 2002/91/CE about Energy Efficiency.Geometry and spatial relationships are very important in building inspection because they make location of thermal defects possible. Moreover, quantification of heat losses is not possible without measuring the area affected. As plans are not always available or updated, especially in the case of old buildings, the metric survey is essential when developing an energetic study. Metric documentation in old buildings is hindered due to their complex and irregular geometry; therefore, geomatic techniques are an appropriate solution to achieve an accurate geometric data acquisition of buildings and 3D models.A procedure to fuse infrared and visible images in order to combine geometric information from photographies with thermal data from thermographies in the same image automatically is described in this paper. Fused images are then used for the automatic generation of a thermographic 3D model of the building through image matching. The proposed methodology is suitable for building inspection, where working space and time are usually limited so a reduction on the number and size of instruments is appreciated. Furthermore, automation of the process diminishes the error in results by avoiding operator's influence.

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“…10 A well-known major limitation in IRT surveys is connected to the narrow field-of-view (FoV) of infrared (IR) cameras adopted for close-range applications. 6 The analysis of a single thermographic image can be sufficient for identification of localized phenomena. However, in the case of large constructions or when thermal anomalies are evident only at a larger scale, the analysis of a single image may not be enough.…”

mentioning

confidence: 99%

“…In the domain of conservation and maintenance of existing buildings, the literature reports several works showing the effective usage of IRT for various tasks such as localization, visualization, and analysis of anomalies. [6][7][8] In particular, IRT is a valuable diagnostic tool for predictive maintenance, allowing the identification of thermal bridges, water infiltration, and energy leaking from the building's envelope. 9 Several studies are trying to define the best conditions for thermal data acquisition depending on several factors: typology of the defects to be detected, façade orientation, solar exposition, humidity, finishing materials, and image acquisition geometry.…”

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confidence: 99%

Rigorous procedure for mapping thermal infrared images on three-dimensional models of building façades

Previtali

Barazzetti

Redaelli

et al. 2013

J. Appl. Remote Sens

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Abstract. A rigorous methodology for mapping thermal and RGB images on three-dimensional (3-D) models of building façades is presented. The developed method differs from most existing approaches because it relies on the use of thermal images coupled with 3-D models derived from terrestrial laser scanning surveying. The primary issue for an accurate texturing is the coregistration of the geometric model of the façade and the thermal images in the same reference system. This task is done by using a procedure standing out from other approaches adopted in current practice, which are mainly based on the independent registration of each image on the basis of homography or space resection techniques. A rigorous photogrammetric orientation of both thermal and RGB images is computed together in a combined bundle adjustment. This solution allows one to have a better control of the quality of the results, especially to reduce errors and artifacts in areas where more images are mosaicked onto the 3-D model. Several products can be obtained: 3-D triangulated textured models or raster products like orthophotos, having the temperature as radiometric value. The proposed approach is tested on different buildings of Politecnico di Milano University. Applications demonstrated the performance of the procedure and its technical applicability in routine thermal surveys. © The Authors. Published by SPIE under a Creative Commons Attribution 3.0 Unported License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.

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Thermographic survey of two rural buildings in Spain

Cited by 89 publications

References 5 publications

Energy efficiency and thermal comfort in historic buildings: A review

Energy efficiency and thermal comfort in historic buildings: A review

Automation of Thermographic 3D Modelling through Image Fusion and Image Matching Techniques

Rigorous procedure for mapping thermal infrared images on three-dimensional models of building façades

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