USE OF TERRESTRIAL PHOTOGRAMMETRY TOGETHER WITH STRUCTURE FROM MOTION TECHNIQUE FOR ARCHITECTURAL HERITAGE OF AYUTTHAYA-ERA THAI TEMPLE: A CASE STUDY OF PRASAT TEMPLE A Case Study of Prasat Temple

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Pongwatcharej Thong-in
Pongrid Klungboonkrong
Chattichai Waisurasingha
Pongsakorn Punrattanasin
Chutima Waisurasingha

Abstract

The positional accuracy and completeness of 3-dimentional model of Thailand's ancient monastery obtained from terrestrial photogrammetry and structure from motion techniques using full-frame mirrorless camera were studied. The chapel of Prasat Thai temple constructed since Ayutthaya era was used as a case study. The ground coordinate of photo-control and check points obtained from the utilization of the combining total station and laser scanner equipment, named “Trimble SX10”, were used as a reference dataset. At the 99% level of confidence, the result showed that the positional accuracy of ±10 cm, illustrating an acceptable level in civil engineering work. However, when the completeness of the result was checked, it was found that the roof structure was still incomplete. This showed that there was a lack of information from high-angle photography. The study thus indicates that the aerial data obtained from unmanned aerial vehicles should be used in combination with the terrestrial dataset.

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Research Articles

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