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Sustainability 2018, 10(9), 3138; https://doi.org/10.3390/su10093138

Surveying and Digital Restoration of Towering Architectural Heritage in Harsh Environments: a Case Study of the Millennium Ancient Watchtower in Tibet

1
Architecture Department, Xi’an University of Architecture & Technology, No. 13, Yanta Road, Xi’an 710055, China
2
Architecture Department, Chang’an University, No. 161, Chang’an Road, Xi’an 710061, China
3
School of Remote Sensing and Information Engineering, Wuhan University, No. 129, Luoyu Road, Wuhan 430079, China
*
Authors to whom correspondence should be addressed.
Received: 12 August 2018 / Revised: 24 August 2018 / Accepted: 31 August 2018 / Published: 3 September 2018
(This article belongs to the Special Issue Digital Heritage)
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Abstract

Aiming at the problem of difficult data collection and modeling in high-rise ancient buildings with narrow interiors, a method is proposed in this paper for modeling and supporting digital restoration based on unmanned aerial vehicle oblique photogrammetry combined with three-dimensional (3D) laser scanning technology. The ancient watchtower complex in the Tibetan region of China is taken as an example. Firstly, the data is collected using an unmanned aerial vehicle and 3D laser scanner. Secondly, the two types of data are merged to generate a three-dimensional status model. Finally, by analyzing the status model and combining the similar remaining conditions, a virtual restoration scheme is proposed, and a 3D restoration model is established. The results show that virtual restoration based on 3D measurement technology can be used as a new method for the research and protection of towering ancient buildings, asrecorded by adopting targeted technology for digital documentation. It is necessary and effective to adopt a method combining unmanned aerial vehicle oblique photogrammetry and the ground 3D laser scanning technology in harsh environments. The digital model can promote the sustainable utilization of cultural heritage. It is necessary to analyze and make full use of the status model of such ancient buildings based on accurately measured data for the virtual restoration of the damaged ancient buildings. The status model of the ancient buildings can be used for display browsing and disaster recording. The restoration model can be dismantled and used to guide the repair work. View Full-Text
Keywords: digital architectural heritage; virtual restoration; harsh environment; unmanned aerial vehicle aerophotogrammetry; ground 3D laser scanning; watchtower; data fusion digital architectural heritage; virtual restoration; harsh environment; unmanned aerial vehicle aerophotogrammetry; ground 3D laser scanning; watchtower; data fusion
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Chen, S.; Yang, H.; Wang, S.; Hu, Q. Surveying and Digital Restoration of Towering Architectural Heritage in Harsh Environments: a Case Study of the Millennium Ancient Watchtower in Tibet. Sustainability 2018, 10, 3138.

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