Accuracy Analysis of Control Point Distribution for Different Terrain Types on Photogrammetric Block

Since the digital orthoimage and orthomosaic maps have come to be used more and more as the fundamental basis for many studies, the demand for such products has been gradually increasing in the recent years. Owing to the fact that they can be produced more rapidly and cheaper than the traditional to...

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Bibliographic Details
Published in:	Tehnički vjesnik Vol. 25; no. S1; pp. 66 - 74
Main Authors:	Guntel, Ahmet, Karabork, Hakan, Karasaka, Lutfiye
Format:	Journal Article Paper
Language:	English
Published:	Slavonski Baod University of Osijek 01-05-2018 Josipa Jurja Strossmayer University of Osijek Strojarski fakultet u Slavonskom Brodu; Fakultet elektrotehnike, računarstva i informacijskih tehnologija Osijek; Građevinski i arhitektonski fakultet Osijek Faculty of Mechanical Engineering in Slavonski Brod, Faculty of Electrical Engineering in Osijek, Faculty of Civil Engineering in Osijek
Subjects:	Accuracy Aerial photography Aerial triangulation Agricultural land bundle adjustment Configurations Digital mapping GCPs distribution Global navigation satellite system Ground based control Photogrammetry Residential areas Satellite imagery Terrain Topographic maps
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Summary:	Since the digital orthoimage and orthomosaic maps have come to be used more and more as the fundamental basis for many studies, the demand for such products has been gradually increasing in the recent years. Owing to the fact that they can be produced more rapidly and cheaper than the traditional topographic maps, the orthoimage maps are currently much in demand. The production accuracy of the orthoimage maps, obtained through aerial photographs or satellite images, has been an important research topic. The number and distribution of the ground control points have a significant bearing on the accuracy of aerial triangulation. Therefore, the accuracy of the orthoimage maps, being the end products, is related to the number and distribution of the ground control points within the block. This study has aimed to study the influence of the number and distribution of ground control points and check points on the accuracy of aerial triangulation by using different GNSS/IMU systems. Five different configurations have been designed depending on the distribution of the ground control and check points within rectangular shaped blocks in different combinations and numbers. Such configurations were then tested in different types of terrain such as forest lands, residential and agricultural areas. The objective of the study was to identify the most ideal geodesic structure and the most accurate photogrammetric triangulation adjustment suitable for various different systems based on such terrain classification. The results were evaluated based on the ASPRS accuracy standards.
Bibliography:	200599
ISSN:	1330-3651 1848-6339
DOI:	10.17559/TV-20160801140840