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Archaeological underground 3D visualization Chaya Mitsuru (presenter), Director, Simmon Corporation Co.,ltd, Miyatsuka Yoshito Manager, Miyatsuka Institute of Archaeology 1686-3 Yaeda, Isaka-cho, Yokkaichi city, Mie-Pref., 512-8064, Japan Tel.: +81-593-66-1660 Fax: +81-593-66-1662 Email: simmon-m@ipc-tokai.or.jp Abstract The success of the archaeological survey in field is mostly due to excaving. Considering the distribution of the object under ground has a great importance. Concretely, this is achieved by means of excavating test pit or a trench. Despite of this effort, there are still possibilities that the test pit did not hit the important area of the site. Having information of under ground before archaeological surveying can be extremely effective for archaeologists. The Ground Penetration Radar system (GPR) is one method for getting these data. The problem for archaeologists to use GPR is the difficulty of understanding and analyzing the data. Placing the radar scanner lengthwise and breadth wise according to the condition of the underground ruin does measurement. The elevation of surface is measured which makes it possible to create 3D models from radar-scanned data. 3D visualization is done by using computer and it is still useful even it is done by easy and cheap software in some particular scale and type of ruin(such as ancient road). Introduction It is very important that archaeologists know the underground data before excavations. The excavations of archaeological sites are always started to excavate from no data, archaeologists must consider from the nothing about the archaeological sites to excavate. Recently, Japanese archaeologists become to test the Geo (Underground) Radar system before excavations. Geo Radar system will not only give to archaeologists about the 2D data, like profiles under the ground, but also give about 3D data, if they will get many data. This paper will show the Visualizations for the under ground 3D images for the archaeological sites. Methods and Test Testing Area We tried to test at Honjo-baru archaeological site in Miyazaki pref., southern Kyushu Island. This test area is covered by many volcanic ashes (about 3-4m) from the Kirishima and Sakurajima volcanoes (Fig.-1), therefore, we cannot find the archaeological sites easily. Honjo-baru archaeological site belongs in 14-15th century, is the fortress site with ditches and clay walls that the
In 1998, the educational office of Miyazaki pref., found the ditches from the profiles of road construction. This point is considerable to the ridge of the Honjo-baru fortress site, the educational office of Miyazaki pref., ordered to test the Geo Radar system to be clear the limit of archaeological site.
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