Construction of 3D mapping model for UAV close-up photography
3D surveying and mapping modeling technology has a wide range of applications in various industries and fields,such as forestry protection,urban services,cultural relics protection,engineering surveying and so on.This study discusses the UAV close-range photographic surveying and mapping technology and takes the 3D modeling of Shakya Pagoda as an example,introduces the basic principle,surveying and mapping method,and common coordinate system of close-range surveying and mapping,and analyzes the key steps of 3D surveying and mapping modeling,including modeling basis,route design and photography process.The UAV technology was used to collect the image materials of Shakya Pagoda,and the accurate 3D model was established.The model was verified by manual measurement and the error was small,which confirmed the feasibility and effectiveness of the technology in the construction of 3D building model.
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