Basic surveying and mapping aerial photogrammetry project in a city in Hubei Province

Visiontek undertook a basic surveying and mapping aerial photogrammetry project in a city in Hubei Province. The total area of ​​the survey area is 40 square kilometers. The terrain type of the survey area is hilly. It needs to carry out digital aerial photography of 40 square kilometers with a ground resolution better than 0.1 meters, and produce 40 square kilometers. 1:1000 digital line drawing.

　　Visiontek has invested in a professional aviation flight team, using UV20 UAV, equipped with Canon5DMarkⅢ digital aerial camera and GNSS dual-frequency receiver. wDetermine the range of aerial photography according to the scope of operation, divide the photography into 3 aerial photography zones for aerial photography. Each aerial photography zone needs to add a frame route at both ends of the route, and the total survey area of 40 square kilometers is better than 0.1 meters. High-resolution aerial imagery. In addition, HAT drones are used to rarely control the air-3 platform for air-3 encryption. Only a few ground control points are required to complete the large-area high-precision air-3 encryption task. Finally, the MapMatrix all-digital photogrammetric workstation is used for stereo digital mapping to produce a standard 1:1000 digital line drawing.

Visiontek’s digital photogrammetry series products represented by MapMatrix can produce standard 4D products (DOM, DEM, DLG, DRG) with high precision and efficiency, and are widely used in basic surveying and mapping projects in countries and regions. A professional digital photogrammetry software.