Suitability study of structure-from-motion for the digitisation of architectural (Heritage) spaces to apply divergent photograph collection
The digitisation of architectural heritage has experienced a great development of low-cost and high-definition data capture technologies, thus enabling the accurate and effective modelling of complex heritage assets. Accordingly, research has identified the best methods to survey historic buildings,...
| Autores: | , , , , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2020 |
| País: | España |
| Institución: | Consejo General de la Arquitectura Técnica de España (CGATE) |
| Repositorio: | RIARTE |
| OAI Identifier: | oai:www.riarte.es:20.500.12251/1990 |
| Acceso en línea: | http://hdl.handle.net/20.500.12251/1990 https://doi.org/10.3390/sym12121981 |
| Access Level: | acceso abierto |
| Palabra clave: | Patrimonio arquitectónico Digitalización 3D Edificios históricos Structure from Motion (SfM) Escáner Láser 3D Nube de puntos Sevilla Fotogrametría arquitectónica 1203.09 Diseño Con Ayuda del Ordenador 2501.21 Simulación Numérica 3305.01 Diseño Arquitectónico 5506.01 Historia de la Arquitectura 2504.04 Fotogrametría Geodésica 3305.34 Topografía de la Edificación |
| Sumario: | The digitisation of architectural heritage has experienced a great development of low-cost and high-definition data capture technologies, thus enabling the accurate and effective modelling of complex heritage assets. Accordingly, research has identified the best methods to survey historic buildings, but the suitability of Structure-from-Motion/Multi-view-Stereo (SfM/MVS) for interior square symmetrical architectural spaces is unexplored. In contrast to the traditional SfM surveying for which the camera surrounds the object, the photograph collection approach is divergent in courtyards. This paper evaluates the accuracy of SfM point clouds against Terrestrial Laser Scanning (TLS) for these large architectural spaces with a symmetrical configuration, with the main courtyard of Casa de Pilatos in Seville, Spain, as a case study. Two different SfM surveys were conducted: (1) Without control points, and (2) referenced using a total station. The first survey yielded unacceptable results: A standard deviation of 0.0576 m was achieved in the northwest sector of the case study, mainly because of the difficulty of aligning the SfM and TLS data due to the way they are produced. This value could be admissible depending on the purpose of the photogrammetric model. © 2020 by the authors. Licensee MDPI, Basel, Switzerland. |
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