5:15 PM - 6:30 PM
[G02-P01] 3D modelling for digital archive of monuments that records historical Nankai earthquakes at Kochi Prefecture
Keywords:stone monument, digital archive, education for disaster prevention, Nankai Earthquake, SfM-MVS
In this project, we construct three-dimensional digital images of the stone monuments for the preservation of the historical records on the earthquake monuments in Kochi Prefecture, and provide information that links the moments and location on the web browser. We then promote to use our content as an education for disaster prevention so that the future generation can inherit the disastrous earthquake history.
The stone monuments have been researched mainly in deciphering the content of the characters engraved on the stones. However, rock physical/chemical properties (such as mineral composition, color, and magnetic susceptibility) and shapes also contain the cultural background at the era when the monuments were built. Therefore, in this project, we construct the three-dimensional digital image of the monuments and measure the rock physical/chemical properties, and then, to publish the information on the web.
We used the commercial software (PhotoScan, Agisoft company) to reconstruct 3D models from digital photo images. Photos were taken by compact digital camera (GR, RICOH imaging company). We plan to view 3D images on web or ask to download to personal computers. Large numbers of face are necessary to display the characters on monuments clearly, though, it may take time to display in browser. Therefore we use the existing platform (Sketchfab, https://sketchfab.com/) that can display and share 3D models based on the WebGL technology. 3D pdf were chosen as format to view 3D models on PC. Spectrophotometer (CM-700d, KONICA MINOLTA Inc.) were used to measure the color, and magnetic susceptibility were measured by KT-10 S/C (Terraplus inc.).
In this presentation, we report our project on progress and preliminary data.