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Study on the Digital Reassembly of Yoni Monument Excavated from Cella of Hong Nang Sida, Lao PDR

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초록

During the dismantling of the cella of the Hong Nang Sida temple in Laos, 100 highlysignificant Yoni-monument members were recovered as fragmented individual stones. To restore theHong Nang Sida temple to its former glory, it is necessary to restore the fragmented Yoni-monumentmembers to their original positions. However, the high weight and low mobility of the stones makeit difficult to physically reassemble the story members. Therefore, this study utilized three-dimensional(3D) scanning, modeling, and printing technologies to digitally reassemble the Yoni monument. Toachieve this goal, optimization modeling was performed to connect the three-dimensional (3D) scanningdata of individual fragmented stones, after which each story member was reduced to a 1/5 of its originalsize and printed by sand printing to evaluate the feasibility of physical assembly. Finally, 3D scansof the Yoni monument assembled using the sand-printing outputs were taken, and all the story memberswere virtually aligned based on the scan data to complete the digital reassembly. We believe that theresults of this study will improve the feasibility and completeness of the physical reassembly by allowingfor a full preliminary examination of stone blocks, which would otherwise be difficult to achieve becauseof the risk of secondary damage or weight limitation. In particular, it is possible to objectively andvisually illustrate the geometric relationship between the members of each story, which can be extendedto similar stone-based cultural heritage sites. To broaden the utility of the digital-reassembly model,it must be evolved into a historic building information model that links the unstructured data, includingdocuments, photos, and images, obtained throughout the process life cycle.

Abstract

During the dismantling of the cella of the Hong Nang Sida temple in Laos, 100 highlysignificant Yoni-monument members were recovered as fragmented individual stones. To restore theHong Nang Sida temple to its former glory, it is necessary to restore the fragmented Yoni-monumentmembers to their original positions. However, the high weight and low mobility of the stones makeit difficult to physically reassemble the story members. Therefore, this study utilized three-dimensional(3D) scanning, modeling, and printing technologies to digitally reassemble the Yoni monument. Toachieve this goal, optimization modeling was performed to connect the three-dimensional (3D) scanningdata of individual fragmented stones, after which each story member was reduced to a 1/5 of its originalsize and printed by sand printing to evaluate the feasibility of physical assembly. Finally, 3D scansof the Yoni monument assembled using the sand-printing outputs were taken, and all the story memberswere virtually aligned based on the scan data to complete the digital reassembly. We believe that theresults of this study will improve the feasibility and completeness of the physical reassembly by allowingfor a full preliminary examination of stone blocks, which would otherwise be difficult to achieve becauseof the risk of secondary damage or weight limitation. In particular, it is possible to objectively andvisually illustrate the geometric relationship between the members of each story, which can be extendedto similar stone-based cultural heritage sites. To broaden the utility of the digital-reassembly model,it must be evolved into a historic building information model that links the unstructured data, includingdocuments, photos, and images, obtained throughout the process life cycle.

참고문헌 (39)

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