THE EFFECT OF DIFFERENT FLIGHT HEIGHTS ON GENERATED DIGITAL PRODUCTS: DSM AND ORTHOPHOTO
| Autor: | ÇELİK, Mehmet Özgür, ALPTEKİN, Aydın, BÜNYAN ÜNEL, Fatma, KUŞAK, Lütfiye, KANUN, Engin |
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| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: | |
| Zdroj: | Volume: 2, Issue: 1 1-9 Mersin Photogrammetry Journal |
| ISSN: | 2687-654X |
| Popis: | Unmanned AerialVehicle (UAV) allows you to create digital surface models (DSM) and orthophotosof an area in a short time by photogrammetric methods. In the last decade, UAVand Global Positioning System (GPS) have been used to create real, reliable andhigh-resolution maps. In this study, the effect of flight height on DSM andorthophoto was investigated. Two flight plans at a height of 30 to 50 meterswere prepared. Images taken with UAV were used to produce DSM and orthophoto.Resolution of maps were compared when models were produced. Compared to a flight height of 50 meters, amore detailed and high-resolution model was created with 30 meters. Althoughthe flight data from 30 meters gave better results, the flight process tooklonger. Also, more photos were taken and the file size took up more space. As aresult of this comparison, it was determined that the flight height should bedetermined according to the terrain structure, accuracy, precision andtime-cost balance expected from the job. |
| Databáze: | OpenAIRE |
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