ISHIGAKI Retrieval Systems for Restoration of Kumamoto Castle Using Multiple Information

Abstract

Many traditional cultural assets in Kumamoto City were damaged by the Kumamoto Earthquakes in 2016. The Kumamoto Castle disastrously damaged by the earthquakes should be completely repaired because it is one of the most important cultural assets in Japan. The Kumamoto Castle recently celebrated its 400th anniversary. In this paper, we propose database design method of broken stones in the Kumamoto Castle for completely repairing the wall of stones which is called “ISHIGAKI”. It is required to find accurate position of each stone before the Kumamoto Earthquakes. However it is difficult to matching each stones because of the shooting environment problem of the photographs of each stone. It is required to construct ISHIGAKI database for matching collect position of stones. We focus on location after broken ISHIGAKI and the surface area of each stone for increasing the ability to find the collect location. Moreover, we propose the entire ISHIGAKI matching algorithm based on not only image matching but also surface area information and location information of stones.