iPhone ProによるLiDAR測量を活用した洞窟調査;七久保の道穴 群馬県下仁田町青倉川上流）を例として

We conducted a Light Detection and Ranging(LiDAR) measurements using iPhone Pro for Nanakubo-no-michiana Cav(e limestone cave), which contains an almost horizontal passage of approximately 12 m in length. We used the three-dimensiona(l 3D) scanning application Polycam for LiDAR measurements to obtain 3D data. In addition, Cave Mapper was added to Blender 3.0.1 as a supplementary add-on tool for cave profile illustration. Cave maps, including plan views, longitudinal- and transversal cross-sections, were created using Blender. LiDAR technology on an iPhone is valuable for surveying caves, mainly when the cave features tight and cramped passages. [ABSTRACT FROM AUTHOR]