3D model construction and accuracy analysis based on UAV tilt photogrammetry

Abstract UAV equipped with tilt photogrammetry platform can obtain multiple angles images and establish 3D model of photogrammetry, which has unique advantages in intelligent construction. The purpose this paper is to take the playground library Department Informatics Wuhan University as research area, regional images, evaluate residual spatial direction by using measured control points collected field, so analyze accuracy model. By analyzing data, root mean square error maximum plane coordinates are 0.31 cm 0.34 respectively, elevation 0.07 0.11 field point coordinates. Through evaluation analysis constructed three-dimensional model, it concluded that X 1.26 cm, Y 1.39 Z 1.60 cm. results show study area reaches centimeter-level meets requirements relevant production specifications. It provide reliable data support for construction urban planning industries.