Application of Handheld Laser Scanner with SLAM Technology for Digital Archiving of Historical Cultural Assets

Abstract

The maintenance of 3D data is necessary to record the current state of castle ruins and remains for restoration work due to damage from the natural disaster. In acquiring data on the remains castle ruins of Kajo Park in Yamagata City, it was a challenge to obtain accurate 3D data on the remains without any blind spots and restricting access to the park by visitors. However, previous 3D data measurement methods like airborne laser measurement methods using aircraft and UAVs and ground-mounted laser measurement methods have problems in efficiency and measurement range for 3D data acquisition in small areas. This paper describes a case study of obtaining 3D data with a handheld laser scanner of castle ruins at Kajo Park in Yamagata City.