3D cadastral model construction method based on UAV tilt photography and GIS positioning

Conventional 3D cadastral models are susceptible to the influence of automatic texture mapping, resulting in a low degree of true matching in model construction. Therefore, this study proposes a method for constructing a 3D cadastral model based on drone oblique photography and GIS positioning. After using drone oblique photography and GIS positioning for 3D cadastral surveying, describe the topological relationship of 3D cadastral spatial entities, and construct an optimization model for 3D cadastral spatial data based on basic structural elements. The experimental results show that the model constructed in this paper has high attribute correlation and true matching, and is reliable.