Suitability study of Structure-from-Motion for the digitisation of architectural (heritage) spaces to apply divergent photograph collection

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Moyano, J, Nieto-Julián, JE, Antón, D ORCID: https://orcid.org/0000-0002-4267-2433, Cabrera, E, Bienvenido-Huertas, D and Sánchez, N, 2020. Suitability study of Structure-from-Motion for the digitisation of architectural (heritage) spaces to apply divergent photograph collection. Symmetry, 12 (12): 1981.

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Official URL: https://doi.org/10.3390/sym12121981

Abstract

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.

Item Type:	Journal article
Publication Title:	Symmetry
Creators:	Moyano, J., Nieto-Julián, J.E., Antón, D., Cabrera, E., Bienvenido-Huertas, D. and Sánchez, N.
Publisher:	MDPI AG
Date:	30 November 2020
Volume:	12
Number:	12
Identifiers:	Number Type 10.3390/sym12121981 DOI 1442491 Other
Rights:	© 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
Divisions:	Schools > School of Architecture, Design and the Built Environment
Record created by:	Linda Sullivan
Date Added:	11 Jan 2022 11:00
Last Modified:	11 Jan 2022 11:00
URI:	https://irep.ntu.ac.uk/id/eprint/45241