Detection and Quantification of Material Displacements at Historical Structures Using Photogrammetry and Laser Scanning Techniques
نویسنده
چکیده
This study proposes a new non-contact approach allows detecting, measuring and tracking the change of cracks in the historical structure using photogrammetric techniques and computer methods. The proposed procedure used an accurate generation of true orthophoto of the studied structure using precise 3D surface representations derived from laser scanning and several digital images that entirely cover the object of interest. Cracks are extracted from the generated orthophoto using a series of image processing techniques. The developed algorithm is applied to analyze and monitor the structural damage in Amra Palace, a UNESCO world heritage site, in Jordan desert.
منابع مشابه
Digital Photogrammetry and Tls Data Fusion Applied to Cultural Heritage 3d Modeling
A great number of papers have been so far published about the comparison and the integration between terrestrial laser scanning and digital photogrammetry, as surveying and 3D modeling techniques. Though most of the works report about their application to Cultural Heritage, achieved results have shown that these two technologies can supplement each other in creating high-quality 3D recordings a...
متن کاملApplication of Digital Photogrammetry for Measuring Deformation and Cracks during Load Tests in Civil Engineering Material Testing
Methods of digital photogrammetry depict a suitable tool for the automatic measurement of twoand three-dimensional displacements fields, deformations and surface defects such as cracks of test objects and structures during short and long time load tests. The paper gives an overview on recent research and development activities in the field of civil engineering material testing, conducted by the...
متن کاملHealth Monitoring of Complex Structure Using Tls and Photogrammetry
The demand for high-definition surveys within cultural heritage projects represents one of the main factors which promoted the use of laser scanning technology and photogrammetry. By measuring millions of points within relatively short time periods, terrestrial laser scanners allow to derive complete and detailed 3D models of real objects from acquired point clouds. Despite the wide spread of T...
متن کاملRock mass structural characterization via short-range digital photogrammetry
Because of the important role of rock mass structural properties on its mechanical behavior, determining the qualitative and quantitative properties of has been a subject of intense research. In this regard, numerous techniques such as scanline surveying, cell mapping, and geologic structure mapping have been proposed. However, applying such field surveying techniques for rock mass properties i...
متن کاملLaser Scanning or Image-based Modeling? a Comparative through the Modelization of San Nicolas Church
Nowadays, the demand for 3D models of historical monuments is continuously growing in the field of archaeological and architectural applications. Currently, the two main sources that can provide detailed and reliable 3D surface models are Photogrammetry through image-based modeling and Terrestrial Laser Scanner through laser scanning techniques. Among the plenty of works so far presented the us...
متن کامل