Browse > Article
http://dx.doi.org/10.7780/kjrs.2015.31.2.12

DSM Generation and Accuracy Analysis from UAV Images on River-side Facilities  

Rhee, Sooahm (3DLabs Co., Ltd.)
Kim, Taejung (Department of Geoinformatic Engineering, Inha University)
Kim, Jaein (Department of Geoinformatic Engineering, Inha University)
Kim, Min Chul (Neighbor System Co., Ltd.)
Chang, Hwi Jeong (Neighbor System Co., Ltd.)
Publication Information
Korean Journal of Remote Sensing / v.31, no.2, 2015 , pp. 183-191 More about this Journal
Abstract
If the damage analysis on river-side facilities such as dam, river bank structures and bridges caused by disasters such as typhoon, flood, etc. becomes available, it can be a great help for disaster recovery and decision-making. In this research, We tried to extract a Digital Surface Model (DSM) and analyze the accuracy from Unmanned Air Vehicle (UAV) images on river-side facilities. We tried to apply stereo image-based matching technique, then extracted match results were united with one mosaic DSM. The accuracy was verified compared with a DSM derived from LIDAR data. Overall accuracy was around 3m of absolute and root mean square error. As an analysis result, we confirmed that exterior orientation parameters exerted an influence to DSM accuracy. For more accurate DSM generation, accurate EO parameters are necessary and effective interpolation and post process technique needs to be developed. And the damage analysis simulation with DSM has to be performed in the future.
Keywords
DSM; stereo matching; UAV;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
연도 인용수 순위
1 Kim, D.I., Y.S. Song, G. Kim, and C.W. Kim, 2014. A Study on the Application of UAV for Korean Land Monitoring, Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography, 32(1): 29-38.   DOI
2 Kim, M.G., G.Y. Jung, J.B. Kim, and H.C. Yun, 2010. Applicability Analysis of UAV for Storm and Flood Monitoring, Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography, 28(6): 655-662.
3 Jaehoon J. and T. Kim, 2014. Analysis of Dual-Sensor Stereo Geometry and Its Positioning Accuracy, Photogrammetric Engineering and Remote Sensing, 80(5): 653-661.   DOI   ScienceOn
4 Rhee, S. and T. Kim, 2011. Research of Matching Performance Improvement for DEM generation from Multiple Images, Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography, 29(1): 101-109.   DOI
5 Rhee, S., T. Kim, and W. Park, 2013. Precision DEM extraction using pseudo GCPs with ALOS/PRISM data, Proceedings of International Symposium on Remote Sensing, Chiba, Japan, 15-17 May 2013.