EVALUATION OF ACCURACY OF DEMS OBTAINED FROM UAV-POINT CLOUDS FOR DIFFERENT TOPOGRAPHICAL AREAS

The main objective of the study was to examine accuracies of DEMs (Digital Elevation Models) with different topographical structures generated by using the Unmanned Aerial Vehicle (UAV) point clouds. Two different terrains with flat and sloping topographical structures were selected for the study, and DEMs of these terrains were generated using eight interpolation techniques (Kriging, Natural Neighbor, Radial Basis Function Triangulation with Linear interpolation, Nearest Neighbor, Invers Distance to a Power, Local Polynomial and Minimum Curvature). The accuracies of DEMs were tested by calculating the statistic methods with the help of the control points obtained by land surveying techniques. At the end of the study, it was observed that in DEMs prepared for both flat (study area 1) and sloping (study area 2) terrains, Kriging interpolation method yields the best results as study area 1 and 2, respectively. In addition, the results were examined using Shapiro-Wilk and ANOVA:Friedman tests. After observing with the Shapiro-Wilk test that the data has a normal distribution, it was statistically determined through the parametric ANOVA: Friedman test that there is no difference between the variables.

[1]  Birutė Ruzgienė,et al.  The surface modelling based on UAV Photogrammetry and qualitative estimation , 2015 .

[2]  Reg Austin,et al.  Unmanned Aircraft Systems: Uavs Design, Development and Deployment , 2010 .

[3]  I. Yilmaz.  A research on the accuracy of landform volumes determined using different interpolation methods , 2009 .

[4]  Tobin A. Driscoll,et al.  Adaptive residual subsampling methods for radial basis function interpolation and collocation problems , 2007, Comput. Math. Appl..

[5]  K. M. Liew,et al.  Geometrically nonlinear thermomechanical analysis of moderately thick functionally graded plates using a local Petrov–Galerkin approach with moving Kriging interpolation , 2014 .

[6]  B. Tabachnick,et al.  Using Multivariate Statistics , 1983 .

[7]  J. Höhle.  DEM Generation Using a Digital Large Format Frame Camera , 2009 .

[8]  Hans-Martin Gutmann,et al.  A Radial Basis Function Method for Global Optimization , 2001, J. Glob. Optim..

[9]  Stefan Kienzle,et al.  The Effect of DEM Raster Resolution on First Order, Second Order and Compound Terrain Derivatives , 2004, Trans. GIS.

[10]  Manuel A. Aguilar,et al.  Effects of Terrain Morphology, Sampling Density, and Interpolation Methods on Grid DEM Accuracy , 2005 .

[11]  A. Edwards,et al.  Characterizing errors in digital elevation models and estimating the financial costs of accuracy , 2010, Int. J. Geogr. Inf. Sci..

[12]  L. Montefusco,et al.  Radial basis functions for the multivariate interpolation of large scattered data sets , 2002 .

[13]  Ian Briggs.  Machine contouring using minimum curvature , 1974 .

[14]  A. S. Toprak,et al.  DEM generation with UAV Photogrammetry and accuracy analysis in Sahitler hill , 2015 .

[15]  K. Kraus.  Photogrammetry: Geometry from Images and Laser Scans , 2007 .

[16]  J. Parker,et al.  Estimating oil spill characteristics from oil heads in scattered monitoring wells , 1993, Environmental monitoring and assessment.

[17]  Jery R. Stedinger,et al.  Water Resources Systems Planning And Management , 2006 .

[18]  Henri Eisenbeiss,et al.  UAVS FOR THE DOCUMENTATION OF ARCHAEOLOGICAL EXCAVATIONS , 2010 .

[19]  I. Colomina,et al.  Unmanned aerial systems for photogrammetry and remote sensing: A review , 2014 .

[20]  P. Williams,et al.  Digital Terrain Models and the Visualization of Structural Geology , 1996 .

[21]  George Vosselman,et al.  Airborne and terrestrial laser scanning , 2011, Int. J. Digit. Earth.

[22]  Qing Zhu,et al.  Effects of Various Factors on the Accuracy of DEMs: An Intensive Experimental Investigation , 2000 .

[23]  Mustafa Siddik Altinakar,et al.  A GIS-based decision support system for integrated flood management under uncertainty with two dimensional numerical simulations , 2011, Environ. Model. Softw..

[24]  P. V. Arun.  A comparative analysis of different DEM interpolation methods , 2013 .

[25]  Jochen Teizer,et al.  Mobile 3D mapping for surveying earthwork projects using an Unmanned Aerial Vehicle (UAV) system , 2014 .

[26]  José Emilio Meroño de Larriva,et al.  Validation of measurements of land plot area using UAV imagery , 2014, Int. J. Appl. Earth Obs. Geoinformation.

[27]  Fabio Remondino,et al.  UAV PHOTOGRAMMETRY FOR MAPPING AND 3D MODELING - CURRENT STATUS AND FUTURE PERSPECTIVES - , 2012 .

[28]  Bheshem Ramlal,et al.  Developing a GIS based integrated approach to flood management in Trinidad, West Indies. , 2008, Journal of environmental management.