Historic building information modeling (HBIM) and 3D terrestrial laser scanning and UAV point clouds for an archaelogical site : a case study of Wat Maha That, Thailand | |
| Author | Supaporn Manajitprasert |
| Call Number | AIT Diss. no.RS-19-02 |
| Subject(s) | Building information modeling--Thailand--Wat Maha That--Case studies Aerial photography in geomorphology Drone aircraft in remote sensing |
| Note | A dissertation submitted in partial fulfillment of the requirements for the degree of Doctor of Philosophy in Remote Sensing and Geographic Information Systems, School of Engineering and Technology |
| Publisher | Asian Institute of Technology |
| Abstract | A technological transformation has been observed in remote sensing, which has renovated the image and model of the object during the past few years. Specifically, the precise acquisition of huge amounts of data has become possible through advancements in terrestrial surveying. The application of terrestrial photogrammetry will serve as an instrument to improve cultural resources documentation and it will provide an initial guide. The field of terrestrial photogrammetry is growing quickly, because of the availability of high-definition digital cameras and software for remote control capable to produce precise georeferenced models. Nevertheless, terrestrial laser scanning provides a digital cultural heritage conservation method at high cost. In order to fill this technological gap, the dissertation assesses UAV photogrammetry and 3D modelling as candidates to reconstruct and map complex areas like archaeological sites with a user-friendly, accurate and cost-effective technique. In addition to this, the development of Historic Building Data Model (HBIM) is proposed that can contain a lot of information such as spatial data, topology, building elements for management of archeological sites in Thailand. The objectives of this dissertation are to provide a comparative analysis of TLS and UA V photogrammetry in the evaluation of the pagoda structure at Wat Maha That, Phra Nakhon Si Ayutthaya Province, and 2) to integrate Historic Building Information Modelling (HBIM) with 3D geographical information to provide effective, accurate documentation on cultural heritage sites. Study cultural heritage site: pagoda point clouds dataset in Wat Maha That site is located at Ayutthaya, which was historically one of Thailand's capitals and is now a UNESCO World Heritage site and was granted UNESCO World Heritage status in 1991. Wat Maha That is situated east of the Ayutthaya Island. It was a temple that held royal status and was considered the most sacred during the Ayutthaya period. This study focuses on the main Mahathat Chedi (bell-shaped pagoda) and Mahathat Prang (towering corn-cob pagoda) pagodas. The main zone was the structural cluster, Chedi and Prang, which is 45 m x 45 m around the base of the main ruin, which rises about 15 m above the courtyard. For terrestrial laser scanning, A Reigl LMS-Z21 0 scanner was used for recording the dataset and it provided point clouds that had sequence of X, Y, Z and R, G, B. Two different methods were considered regarding efficiency and accuracy for the generation of the pagoda structures. The segmentation algorithm that has been implemented using Matlab, helps in reducing point cloud from terrestrial laser scanning. This approach is presented to evaluate noise and redundancy in poin tclouds reduction while preserving a full meaning of an object in the 3D model. The experimental findings indicate that the redundant data can efficiently be eliminated by the segmentation technique with distinct necessary precision and models with a less sharpness than a complicated model. This algorithm can also generate a structural estimate of the pagodas based on the dense point clouds from terrestrial laser scanning. For Unmanned aerial vehicles (UAVs) are simple photogrammetric tool which can produce high-resolution scaled models. The UAV imagery is being used to generate an accurate 3D model using two pagodas at Wat Maha That as case studies: Chedi and Prang. The methodology provides an effective, economical manner of semi-automatic mapping and contributes to the high-quality modeling of cultural heritage sites. The unmanned aerial vehicle structure-from-motion (UAV-SfM) method was used to generate a 3D Wat Mahathat pagoda model. Its accuracy was compared with a model obtained using terrestrial laser scanning and check points. The findings indicated that the 3D UA V -SfM pagoda model was sufficiently accurate to support pagoda conservation management in Thailand. This dissertation highlights the principal aspects of digital photogrammetry and its applications on the archaeological site. The benefits of the use of terrestrial laser scanning and UA V monitoring in archaeological photogrammetry are also described here. The practical aspects are illustrated by the three-dimensional model of two pagodas in Wat Maha That, Ayutthaya. Furthermore, aspects relating to data collection using a total station, terrestrial laser scanning and UAV, as well as the use of AutoCAD, Google SketchUp, and Pix4D are discussed. This dissertation provides the development of 3D pagoda reconstruction methods, which minimize 3D pagoda modeling costs. The HBIM application in Thailand is also considered an effective solution for integrating spatial data and valuable information for Thailand's archaeological production, preservation, documentation and management. |
| Year | 2019 |
| Type | Dissertation |
| School | School of Engineering and Technology |
| Department | Department of Information and Communications Technologies (DICT) |
| Academic Program/FoS | Remote Sensing (RS) |
| Chairperson(s) | Tripathi, Nitin Kumar |
| Examination Committee(s) | Sarawut Ninsawat ;Surachet Pravinvongvuth |
| Scholarship Donor(s) | Office of the Higher Education Commission (OHEC) Burapha University, Thailand |
| Degree | Thesis (Ph.D.) - Asian Institute of Technology, 2019 |