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Influence of Sample Size on Automatic Positional Accuracy Assessment Methods for Urban Areas

Department of Cartographic, Geodetic Engineering and Photogrammetry, University of Jaén, 23071 Jaén, Spain
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ISPRS Int. J. Geo-Inf. 2018, 7(6), 200; https://0-doi-org.brum.beds.ac.uk/10.3390/ijgi7060200
Received: 7 May 2018 / Revised: 18 May 2018 / Accepted: 27 May 2018 / Published: 28 May 2018
In recent years, new approaches aimed to increase the automation level of positional accuracy assessment processes for spatial data have been developed. However, in such cases, an aspect as significant as sample size has not yet been addressed. In this paper, we study the influence of sample size when estimating the planimetric positional accuracy of urban databases by means of an automatic assessment using polygon-based methodology. Our study is based on a simulation process, which extracts pairs of homologous polygons from the assessed and reference data sources and applies two buffer-based methods. The parameter used for determining the different sizes (which range from 5 km up to 100 km) has been the length of the polygons’ perimeter, and for each sample size 1000 simulations were run. After completing the simulation process, the comparisons between the estimated distribution functions for each sample and population distribution function were carried out by means of the Kolmogorov–Smirnov test. Results show a significant reduction in the variability of estimations when sample size increased from 5 km to 100 km. View Full-Text
Keywords: accuracy; sample size; simulation; matching; automation accuracy; sample size; simulation; matching; automation
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MDPI and ACS Style

Ariza-López, F.J.; Ruiz-Lendínez, J.J.; Ureña-Cámara, M.A. Influence of Sample Size on Automatic Positional Accuracy Assessment Methods for Urban Areas. ISPRS Int. J. Geo-Inf. 2018, 7, 200. https://0-doi-org.brum.beds.ac.uk/10.3390/ijgi7060200

AMA Style

Ariza-López FJ, Ruiz-Lendínez JJ, Ureña-Cámara MA. Influence of Sample Size on Automatic Positional Accuracy Assessment Methods for Urban Areas. ISPRS International Journal of Geo-Information. 2018; 7(6):200. https://0-doi-org.brum.beds.ac.uk/10.3390/ijgi7060200

Chicago/Turabian Style

Ariza-López, Francisco J., Juan J. Ruiz-Lendínez, and Manuel A. Ureña-Cámara 2018. "Influence of Sample Size on Automatic Positional Accuracy Assessment Methods for Urban Areas" ISPRS International Journal of Geo-Information 7, no. 6: 200. https://0-doi-org.brum.beds.ac.uk/10.3390/ijgi7060200

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