基于无人机的城市局部区域三维测绘建模

x××UAV system design and productionABSTRACTThis paper mainly discusses the application of small four-axis UAV in 3D surveying andmapping modeling of local urban areas.From the aspects of UAV operation,sensor selection,surveying and mapping system,data processing and transmission,the main functions of UAV in3D surveying and mapping modeling of regional areas are introduced in detail.This paper mainly discusses the application of small four-axis UAV in 3D surveying andmapping modeling of local urban areas.From the aspects of UAV operation,sensor selection,surveying and mapping system,data processing and transmission,the main functions of UAV in3D surveying and mapping modeling of regional areas are introduced in detail.In terms of the selection of UAV photography methods,this paper compares the traditionalvertical aerial photography and tilt photography and uses these two methods to collect datarespectively and finally draws a picture for comparison.Finally,compared with the traditionalvertical aerial camera,tilt camera can reflect the real surrounding situation of the object and thedata amount of tilt camera is small.In this paper,the methods of UAV and UAV aerial photography and the application ofUAV in the 3D survey of the local area of the city are discussed and studied based on theexisting technology,so as to pave the way for the future discussion of new photographymethods and the application of UAV in the aerial survey.Key words:UAV Aerial survey Oblique camera 3D modelingII