İnsansız Hava Araçları ile Harita Üretim Çalışmalarında Farklı Yüksekliklerde Yapılan Uçuşların Konum Doğruluğuna Etkisi
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Date
2020
Authors
Mutluoğlu, Ömer
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Abstract
Çağımız teknolojisinin gelişmesi farklı disiplinleri etkilediği gibi mühendislik çalışmalarını da büyük oranda etkilenmiştir. Harita mühendisliğinde harita üretim tekniklerine de katkı sağlamıştır. İnsansız hava araçları bu gelişmelerle beraber büyük ölçüde harita üretiminde kullanılmaktadır. Bu çalışmada, DJİ Phantom 3 Pro ile kaydedilen görüntülerden ortofoto ve nokta bulutu üretilerek nokta konum doğruluğu araştırılmıştır. Ortofoto ve Sayısal Yükseklik Modeli Virtual Surveyor yazılımında birleştirilmiştir. Test alanı 100x100 m. boyutlarında yükseklik farkının çok az olduğu bir yer seçilmiştir. Daha sonra test alanı 20x20 m’lik kareler ağına bölünerek bir grid ağı oluşturulmuştur. Grid ağının kesişim ve köşe noktalarında işaretleme yapılmıştır. İşaretlenen bu noktaların koordinatları (Y,X,H) RTK-GPS ölçme yöntemiyle belirlenmiştir. Test alanında İHA ile 50 m. ve 80 m yükseklikten %70-%80 bindirmeli olarak görüntüler alınmıştır. Alınan görüntüler fotogrametrik olarak değerlendirilmiştir. Değerlendirme sonucunda elde edilen nokta koordinatlarıyla, RTK-GPS ölçme yöntemiyle elde edilen nokta koordinatları karşılaştırılmıştır. Karşılaştırma sonucunda ortalama yatay ve düşey yöndeki nokta konum doğruluğu elde edilmiştir.
The development of technology in nowadays has affected different disciplines as well as engineering studies and has also strengthened map production techniques in map engineering. Unmanned aerial vehicles are largely used in map production with all these developments. In this study, orthophoto and point cloud were produced from the images recorded with DJI Phantom 3 Pro and the point position accuracy was investigated. Orthophoto and Digital Elevation Model are combined in Virtual Surveyor software. The test area is 100x100 meters in size and a place where the height difference is very small was chosen. Then, a grid network has been created by dividing the testing area of 20x20 m2 network. Corners and the intersection points of the grid network have been marked. Coordinates of the marked points (Y, X, H) have been surveyed by RTK-GPS survey methods. Images with an 70% overlap -80% overlap have been taken 50 m and 80 m above of the test area by UAV. Those images have been evaluated photogrammetricly. Then, the comparison has been made between point coordinates obtained by the evaluation and point coordinates obtained by the RTK-GPS measurement method. At the end of the study, average point spatial accuracy in the horizontal and vertical positions has been obtained by the comparison results.
The development of technology in nowadays has affected different disciplines as well as engineering studies and has also strengthened map production techniques in map engineering. Unmanned aerial vehicles are largely used in map production with all these developments. In this study, orthophoto and point cloud were produced from the images recorded with DJI Phantom 3 Pro and the point position accuracy was investigated. Orthophoto and Digital Elevation Model are combined in Virtual Surveyor software. The test area is 100x100 meters in size and a place where the height difference is very small was chosen. Then, a grid network has been created by dividing the testing area of 20x20 m2 network. Corners and the intersection points of the grid network have been marked. Coordinates of the marked points (Y, X, H) have been surveyed by RTK-GPS survey methods. Images with an 70% overlap -80% overlap have been taken 50 m and 80 m above of the test area by UAV. Those images have been evaluated photogrammetricly. Then, the comparison has been made between point coordinates obtained by the evaluation and point coordinates obtained by the RTK-GPS measurement method. At the end of the study, average point spatial accuracy in the horizontal and vertical positions has been obtained by the comparison results.
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Keywords
Mühendislik Temel Alanı&Harita Mühendisliği&Fotogrametri, UAV, Fotogrametri, Photogrammetry, SYM, DEM, YKN, GCP
Turkish CoHE Thesis Center URL
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Source
Türkiye İnsansız Hava Aracı Dergisi
Volume
2
Issue
1
Start Page
28
End Page
35
Downloads
5
checked on Feb 03, 2026
