Evaluation Method of Solar Energy Utilization Potential in Urban High-density Areas Based on Low-altitude Photogrammetry

An evaluation method of solar energy utilization potential in urban high-density areas based on low-altitude photogrammetry, comprising the following steps:

• step 1, obtaining low-altitude remote sensing image data of urban high-density area, and generating three-dimensional point cloud data through image processing;
• step 2, based on information carried by the three-dimensional point cloud data, distinguishing point cloud of building subject from that of non-building subject, and obtaining filtered singular three-dimensional point cloud data;
• step 3, through point cloud patch segmentation method based on curvature and normal vector, and the subsequent column model reconstruction, reconstructing singular 3D point cloud data in three dimensions to obtain a singular urban high-density area building geometry model;
• step 4, through computer simulation of singular geometric model of buildings in the urban high-density area, obtaining distribution information of solar radiation on a surface of a building;
• performing data analysis on distribution information of solar radiation on the surface of the building, and evaluating the potential of solar energy utilization in the urban high-density area through results of data analysis.