著者
岩佐 佳哉 濱 侃 中田 高 熊原 康博 後藤 秀昭 山中 蛍
出版者
一般社団法人 日本活断層学会
雑誌
活断層研究 (ISSN:09181024)
巻号頁・発行日
vol.2022, no.57, pp.1-13, 2022-12-26 (Released:2023-06-27)
参考文献数
19

In order to evaluate the applicability of 3D scanners for field survey on surface ruptures, we examined the scanning accuracy, point cloud density, usability, and time efficiency of the instruments of three different SLAM methods, Avia for LiDAR SLAM, ZED 2 for Visual SLAM, and iPad Pro for Depth SLAM We conducted experimental surveys on the surface ruptures associated with the 2016 Kumamoto Earthquake at two locations. One is the surface rupture preserved as the earthquake heritage in the Aso field of Tokai University, while another is a normal fault rupture in the forested area at Miyayama, Nishihara Village, Kumamoto Prefecture. All the scanners obtained detailed point clouds, from which we successfully made digital surface models, cross-profiles and contour maps in a few tens of minutes. We came to know that Avia is most effective among the three scanners for wide-area mapping and that iPad Pro is a useful handy instrument for mapping limited areas. From our experimental survey, it is highly recommended to use Avia and iPad Pro together (in the field) in order to collect detailed geometric data of surface ruptures immediately after earthquake.

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論文が無料公開!! モバイルLiDARを使った地形測量の手法を提示しました。数十分で高精度な地形データを取得でき、山城や遺跡など各種地理学的な調査にも活用できます。 SLAM技術を用いた低価格モバイル3Dスキャナーによる地表地震断層の数値表層モデルの作成とその有効性 https://t.co/OO3wMJdn1n https://t.co/CbQgigpJMQ https://t.co/Asl1TFPbLz

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