Application of UAV-based 3D modeling and visualization technology in urban planning

With the acceleration of urbanization, urban planning is increasingly demanding for data accuracy and visualization capability. UAV-based 3D modeling and visualization technology provides an efficient and accurate solution for urban planning. UAVs collect geographic and architectural information by carrying a variety of sensors to generate high-resolution images and point cloud data, which are further used to construct accurate 3D city models and enhance the realism of the models through texture mapping and optimization. Based on these models, 3D visualization technology provides urban planners with an intuitive means of spatial analysis and dynamic monitoring, and enhances the efficiency of planning and design, environmental monitoring, and construction management. This paper explores examples of the application of UAV technology in urban planning, demonstrating its great potential for improving planning accuracy, management efficiency, and decision support.