Method for constructing three-dimensional scene model of transformer substation

The invention discloses a method for constructing a three-dimensional scene model of a transformer substation, which is used for implementing three-dimensional scene refined modeling of the transformer substation from data acquisition, data fusion processing and semantic segmentation on the basis of a laser three-dimensional scanning technology and an oblique photography technology and a power operation environment. According to the oblique photogrammetry technology, omnibearing photo information of a building is obtained by means of an unmanned aerial vehicle, a real scene model with coordinate information, dense point clouds, orthoimages and high-quality photo data can be generated from photos through oblique photogrammetry software, and an outdoor real scene three-dimensional model or true color dense point clouds can be generated; the three-dimensional laser radar scanning technology can obtain accurate ground point cloud data, and is used for generating a white model without texture information and const