Abstract
Abstract. 3D documentation and visualization of cultural heritage has a great significance in preserving the memories and history, and supports cultural tourism. It is of great importance to study the 3D reconstruction of cultural relics and historic sites. Preservation, visualization of valuable cultural heritage has always been a difficult challenge. With the developments of photogrammetry, terrestrial laser scanning, 3D models were able to obtained quickly and accurately. In this paper we present the survey and 3D modelling of an ancient temple, Banteay Srei, situated in Angkor, which has long been admired as a “Precious Gem” of Khmer Art for its miniature size of structures and exceptional refinement of the sculptures. The survey was performed with FARO Focus3D 330 and FARO Focus3D 120 terrestrial laser scanners, a micro unmanned aerial vehicle (UAV) (DJI Phantom 4 Pro) and a digital camera (Nikon D90). Once the acquired scans were properly merged, a 3D model was generated from the global point cloud, and plans, sections and elevations were extracted from it for restoration purposes. A short multimedia video was also created for the “Digital Banteay Srei”. In the paper we will discuss all the steps and challenges addressed to provide the 3D model of Banteay Srei Temple.
Highlights
Laser scanning, which is completeness, accuracy and fastness rapidly has a wide range of application in the cultural heritage documentation and conservation
On 27-28 September 2017 and 16-18 August 2018, a field survey was conducted at the Banteay Srei Temple
The dense point cloud generated from unmanned aerial vehicle (UAV) images and the terrestrial laser scanner (TLS) point cloud are from two different coordinates
Summary
As a part of cultural heritage enhancement process, the 3D documentation of historic sites plays a more and more important role for the monitoring and restoring of the site, as well as for popular-informative and educational purposes. We have witnessed the development of the 3D survey techniques: close-range photogrammetry, laser scanning et al These techniques improve the accuracy of the results and reduce time in a great deal. UAV is playing an extremely important role in cultural heritage documentation for its costeffective and efficient manner to acquire high spatial resolution data and realistic. With a single technique mentioned above is not able to deliver satisfactory results, a fusion methodology (of data and sensors) is normally required and performed.
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