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Geography / Terrain / Spatial Basic Survey
地理・地形・空間 基礎調査

with Associate Prof. YS Hayakawa, Hokkaido University. Et al.

ドローン空撮 (2).jpg

Survey the position of this cave in the ground.

Grasp the underground position of the cave.


Geography / Terrain / Spatial Basic Survey
Graduate School of Environmental Science, Hokkaido University
Center for Strategic and Information Science, University of Tokyo (CSIS)
Graduate School of Education,
University of Teacher Education

Associate Professor Yuichi Hayakawa, Hokkaido University
Assistant Professor (Lecture) Takuro Ogura, Hyogo University of Teacher Education
Professor Takashi Oguchi,
The University of Tokyo CSIS
 Assistant Professor Kotaro Iizuka,
The University of Tokyo CSIS
Hiroyuki Yamauchi,
University of Tokyo CSIS
Kenichi Tsuruoka,
University of Tokyo CSIS
Past cooperation:
3D Surveyplus GK
PointCloud3Dmodel (3).jpg

photo by Hayakawa  

© Copyright 田谷の洞窟保存実行委員会

In cooperation with Hokkaido University and the University of Tokyo's Centre for Spatial Information Science (CSIS), basic research is being carried out to understand high-resolution spatial information on the spatial shape of caves and their relationship with the terrain, using various digital survey techniques such as drones and laser scanning surveying.

From the high-resolution digital information, we have been aiming to understand information on the thickness of cave floors, walls and ceilings, as well as their precise positional relationship with the topography.

Understanding complex cave geometries that cannot be surveyed by human hands.

  • Determination of the dimensions of floors, walls and ceilings.

  • Understanding the relationship between the terrain on the ground and the cave.

  • Prototyping and studying 3D models.

Center for Spatial Information Science, University of Tokyo (CSIS)-  JoRAS (joint research)

"Utilization of GIS for environmental conservation of satoyama: Taking Taya Caves and its surroundings as an example"

​SfM解析による三次元写真測量 3D Photogrammetry Survey

​SfM 3D photogrammetry

​SfM(Structure from Mortion)解析による三次元写真測量

TLS地上レーザー測量 Terrestrial Laser Scanner Survey

​TLS (Terrestrial Laser Scanner)  Laser Survey

​TLS(Terrestrial Laser Scanner)地上レーザー測量

UAV aerial photography surveys

UAV(Unmanned Aerial Vehicle)空撮調査

UAV空撮調査 Terrestrial Laser Scanner Survey

VR (Virtual Reality)  development for education

VR(Virtual Reality)洞窟体験学習教材 開発

Satoyama LiDAR Survey

里山 LiDAR測量(微地形測量)


Purpose & Expansion

​調査の目的・展開:「地理・地形・空間 基礎調査 から繋がる事とは?」

調査目的展開 Purpose & Expansion

* Part of this survey was conducted from April 2019 to March 2020 with the support of the Asahi Shimbun Cultural Foundation.

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