Abstract
Abstract. Ta Keo temple is one of the very famous temple complex of Angkor Wat in northwestern Cambodia. It has been suffering massive collapse and other serious damages in recent years. Nowadays, Terrestrial Laser Scanning(TLS) technology is considered as a wellestablished resource for heritage documentation and protection (Lerma et al, 2008; Reshetyuk, 2009). This paper used TLS to reconstruct Ta Keo Temple. Firstly, we acquired 71 scanning stations of points cloud data with high density and high accuracy, and over one thousand images with high spatial resolution about the temple. Secondly, the raw points cloud data were denoised, reduced and managed efficiently, and registrated using an adjusted ICP algorithm. Thirdly, a triangulation method was used to model most objects. At last, we mapped the texture data into the digital model and a 3-D model of Ta Keo with high accuracy was achieved. The authors focus on large object reconstruction by TLS technology, and pay much attention to the scanning design, multi-station data and the whole project’s data registration, and texture mapping and so on. The research result will be useful for Ta Keo restoration, reconstruction and protection. Also, it is a good reference source for large complex buildings reconstruction when using terrestrial laser scanning technology.
Highlights
Angkor Wat is a medieval temple complex at Angkor in northwestern Cambodia and has been the focus of intensive scholarly research in recent decades of years (Evans et al, 2013)
The distance, or range from the sensor to a point on the object surface is determined with high accuracy by measuring the time of flight between the emission of a laser signal and detection of its portion backscattered from the suface (Wehr and Lohr, 1999)
The authors deploy terrestrial laser scanning technology in Ta Keo Temple, one the most important parts of Angkor Wat, in order to achieve a 3-D model of the temple
Summary
Angkor Wat is a medieval temple complex at Angkor in northwestern Cambodia and has been the focus of intensive scholarly research in recent decades of years (Evans et al, 2013) It was designated as a UNESCO world heritage site in 1992. The authors deploy terrestrial laser scanning technology in Ta Keo Temple, one the most important parts of Angkor Wat, in order to achieve a 3-D model of the temple.
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