Volume XLI-B6
Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XLI-B6, 95-100, 2016
https://doi.org/10.5194/isprs-archives-XLI-B6-95-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XLI-B6, 95-100, 2016
https://doi.org/10.5194/isprs-archives-XLI-B6-95-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

  17 Jun 2016

17 Jun 2016

THE USE OF UAS FOR RAPID 3D MAPPING IN GEOMATICS EDUCATION

Tee-Ann Teo1, Peter Tian-Yuan Shih1, Sz-Cheng Yu1, and Fuan Tsai2 Tee-Ann Teo et al.
  • 1Dept. of Civil Engineering, National Chiao Tung University, Hsinchu, Taiwan 30010
  • 2Center for Space and Remote Sensing Research, National Central University, Taoyuan, Taiwan 32001

Keywords: Unmanned Aerial Vehicle, Rapid Mapping, Education

Abstract. With the development of technology, UAS is an advance technology to support rapid mapping for disaster response. The aim of this study is to develop educational modules for UAS data processing in rapid 3D mapping. The designed modules for this study are focused on UAV data processing from available freeware or trial software for education purpose. The key modules include orientation modelling, 3D point clouds generation, image georeferencing and visualization. The orientation modelling modules adopts VisualSFM to determine the projection matrix for each image station. Besides, the approximate ground control points are measured from OpenStreetMap for absolute orientation. The second module uses SURE and the orientation files from previous module for 3D point clouds generation. Then, the ground point selection and digital terrain model generation can be archived by LAStools. The third module stitches individual rectified images into a mosaic image using Microsoft ICE (Image Composite Editor). The last module visualizes and measures the generated dense point clouds in CloudCompare. These comprehensive UAS processing modules allow the students to gain the skills to process and deliver UAS photogrammetric products in rapid 3D mapping. Moreover, they can also apply the photogrammetric products for analysis in practice.