Application of a Terrestrial LIDAR System for Elevation Mapping in Terra Nova Bay, Antarctica

Sensors

Hyoungsig Cho²  Seunghwan Hong²  Sangmin Kim²  Hyokeun Park²  Ilsuk Park²  Hong-Gyoo Sohn¹ 

[1] School of Civil and Environmental Engineering, Yonsei University, Seoul 120-749, Korea;

关键词: terrestrial LIDAR;    Antarctica;    GNSS;    point cloud;    co-registration;    georeferencing;    DEM;    topographic map;   

DOI  :  10.3390/s150923514

来源: mdpi

【 摘 要 】

A terrestrial Light Detection and Ranging (LIDAR) system has high productivity and accuracy for topographic mapping, but the harsh conditions of Antarctica make LIDAR operation difficult. Low temperatures cause malfunctioning of the LIDAR system, and unpredictable strong winds can deteriorate data quality by irregularly shaking co-registration targets. For stable and efficient LIDAR operation in Antarctica, this study proposes and demonstrates the following practical solutions: (1) a lagging cover with a heating pack to maintain the temperature of the terrestrial LIDAR system; (2) co-registration using square planar targets and two-step point-merging methods based on extracted feature points and the Iterative Closest Point (ICP) algorithm; and (3) a georeferencing module consisting of an artificial target and a Global Navigation Satellite System (GNSS) receiver. The solutions were used to produce a topographic map for construction of the Jang Bogo Research Station in Terra Nova Bay, Antarctica. Co-registration and georeferencing precision reached 5 and 45 mm, respectively, and the accuracy of the Digital Elevation Model (DEM) generated from the LIDAR scanning data was ±27.7 cm.

【 授权许可】

CC BY   
© 2015 by the authors; licensee MDPI, Basel, Switzerland.