Abstract
Abstract. Aiming at the phenomenon that the traditional measurement methods cannot complete large-scale measurement in a short time, and the image quality obtained by remote sensing in cloudy and rainy areas is difficult to meet the demand, this paper puts forward the idea of using UAV tilt photography to build three-dimensional modeling of urban real scene. The UAV tilt photography technology is used to collect the image data of about 200 km2 in Wuzhishan City. By laying a small number of ground image control points, the aerial triangulation is used to establish the connection, and the three-dimensional modeling of the collected data is carried out. Through the field verification to verify the attribute information of ground objects, the accuracy is verified by using CORS system field coordinate collection. The results show that the ground property and mathematical accuracy of UAV tilt photography model meet the requirements, and can be effectively used in real 3D modeling.
Highlights
UAV appeared in the early 20th century
The drone tilt photogrammetry technology developed by the integration of drones and tilt photogrammetry has changed the limitation that traditional aerial survey and remote sensing can only be taken from the vertical direction, using multiple sensors to capture data from different angles
Efficiently and quickly obtain massive amounts of data and information, and truly and reliably reflect the objective conditions on the ground. Because of these technical characteristics, UAV oblique photogrammetry technology has begun to be gradually applied in 3D modeling
Summary
UAV appeared in the early 20th century. Early UAV were mainly used in the military field for combat, reconnaissance and civilian remote sensing. The drone tilt photogrammetry technology developed by the integration of drones and tilt photogrammetry has changed the limitation that traditional aerial survey and remote sensing can only be taken from the vertical direction, using multiple sensors to capture data from different angles. Efficiently and quickly obtain massive amounts of data and information, and truly and reliably reflect the objective conditions on the ground. Because of these technical characteristics, UAV oblique photogrammetry technology has begun to be gradually applied in 3D modeling. UAV oblique photogrammetry technology has higher efficiency in data collection and city 3D model production, which can reduce time and labor costs
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