SenseFly eBeeX İHA İle Üretilen Ortofotonun Konum Doğruluğunun İncelenmesi

Akar, Alper; AKAR, Özlem; BAYATA, Halim Ferit

doi:10.51534/tiha.1016277

Cited by 4 publications

(2 citation statements)

References 12 publications

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“…UAV photogrammetry is a general description of the photogrammetric process performed through photos taken by a camera integrated into an autonomous or manually controlled unmanned aircraft. In this context, UAV photogrammetry has been favored in architectural, archaeological, and historical artifacts 3D modelling studies, especially with its newly developed image processing techniques [Doğan and Yakar, 2018;Akar et al, 2021;Polat et al, 2021].…”

Section: Introductionmentioning

confidence: 99%

Using UAV Photogrammetric Technique for Monitoring, Change Detection, and Analysis of Archeological Excavation Sites

Ulvi̇

2022

J. Comput. Cult. Herit.

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The shrinkage of the sensors installed in unmanned aerial vehicles and the increase in data quality have provided great advantages to UAV users, especially in analysis and interpretation works. Archaeologists, in particular, can take full advantage of new opportunities to research and identify objects and artifacts, using remote sensing methods, by studying the past at excavation sites using modern technologies such as UAVs. These methods enable researchers to discover objects on the ground with the help of sensors. This study includes the UAV monitoring, documentation, and analyses of the excavation works that took place in 2014 (phase 1), 2017 (phase 2- phase 3), and 2020 (phase 4) at the Ancient Theatre of Uzuncaburç built in the Roman Empire. For this purpose, photos were taken with the UAV for each phase, and measurements were made from the excavation site's points with precision gauges (total-station and GNSS). 3D point cloud, orthophoto map, Digital Elevation Model (DEM) map, and 3D models of each phase were produced with the taken pictures. Since UAV photogrammetry was used in this study, each excavation phase was recorded precisely. This, unlike classical documentation techniques, enabled the deformations in the excavation areas to be revealed. The 3D position accuracy calculated for the control point (ChP) used in the four excavation phases ranges from 5.8 mm to 33.5 mm. The most important feature of this study is the sensitive examination of the changes in the excavation area for many years with the UAV photogrammetry technique. At the end of the study, the excavation phases and the determination of the deformation points in the excavation area were recorded digitally.

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Section: Introductionmentioning

confidence: 99%

Using UAV Photogrammetric Technique for Monitoring, Change Detection, and Analysis of Archeological Excavation Sites

Ulvi̇

2022

J. Comput. Cult. Herit.

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“…However, ground control points (GCP) are established on the land to detect the spatial errors during orthophoto production. These points are measured with Real-Time Kinematic (RTK) measurements or Continuously Operating Reference Stations (CORS) system working in TUSAGA-Active System to be used as exterior orientation parameters [21]. 3D accuracies of digital orthophoto images and the methods used are shown in the "Accuracy Standards for Digital Geospatial Data March 2014" directive implemented to affect the American Society for Photogrammetry and Remote Sensing (ASPRS) [22].…”

Section: Introductionmentioning

confidence: 99%

Orthophoto production and accuracy analysis with UAV photogrammetry

Güngör

Uzar

ATAK

et al. 2022

Mersin Photogrammetry Journal

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Undoubtedly, Unmanned Aerial Vehicles (UAV) are one of today’s most functional technology products. In recent years, UAVs integrated with different sensors and transformed into harmony with advanced technology are developing rapidly and used in different applications to obtain geographical data. With UAV photogrammetry, images of target areas can be obtained quickly, at low cost, with high accuracy, and up to date. In addition to the advantages and success of existing methods for orthophoto production in large areas with classical photogrammetry, it is observed that the accuracy of these methods decreases in detecting changes in geometric properties and especially in small-scale areas. For this reason, the ability to obtain geometric accuracy with the desired precision, which is of great importance in orthophoto production with UAV photogrammetry, has made it the reason for preference over classical methods. In this study, autonomous flights were carried out with DJI Mavic-2 Pro UAV in the selected pilot region, and orthophoto, Digital Elevation Model (DEM), and Digital Terrain Model (DTM) were produced as a result of processing the images obtained. In order to determine the geometric accuracy of the orthophoto, its coordinates were determined by the CORS-GPS method, and ten ground control points (GCP) were used. As a result of the accuracy analysis of the produced orthophoto, the spatial accuracy in the ΔY direction is ±6.9 cm, the spatial accuracy in the ΔX direction is ±7.8 cm, and the spatial accuracy in the ΔZ direction is ±10.3 cm.

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Usage Areas and Sensor Types of Unmanned Aerial Vehicles

VİLLİ

Yakar

2022

Türkiye İnsansız Hava Araçları Dergisi

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Başlarda sadece askeri ve gözetleme amacıyla kullanılan insansız hava araçları, son yıllarda gelişen teknoloji ile birlikte maliyetlerin düşmesi ve erişebilirliğin artmasıyla, mühendislik uygulamalarında, bilimsel çalışmalarda ve sivil kullanımlarda da kendine yer bulmaya başlamıştır. Askeri olmayan kullanımlar için geliştirilen insansız hava araçları, günümüzde haritacılık başta olmak üzere, ziraat, madencilik, inşaat, doğal afet izleme, meteoroloji, arkeoloji gibi alanlarda sıkça kullanılmaktadır. İnsansız hava araçları bu alanlardan veri toplayabilmek için çeşitli aktif veya pasif sensörlere sahiptir ve taşıdıkları bu sensörler ile yüksek doğrulukta veriler elde edebilmektedir. İnsanlı hava araçları veya uydu görüntülerine göre de düşük maliyetli, hassas, hızlı ve analitik çözümler üretebilmektedir. Bu çalışma kapsamında, insansız hava araçlarının çeşitli alanlardaki kullanımları ve taşıdıkları sensörler üzerinde durulacaktır. Ayrıca, insansız hava aracı uygulamalarının gelecekteki beklentileri sunulacaktır.

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SenseFly eBeeX İHA İle Üretilen Ortofotonun Konum Doğruluğunun İncelenmesi

Cited by 4 publications

References 12 publications

Using UAV Photogrammetric Technique for Monitoring, Change Detection, and Analysis of Archeological Excavation Sites

Using UAV Photogrammetric Technique for Monitoring, Change Detection, and Analysis of Archeological Excavation Sites

Orthophoto production and accuracy analysis with UAV photogrammetry

Usage Areas and Sensor Types of Unmanned Aerial Vehicles

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