关键词: 三维地理场景, 实景融合, 无人机巡查, 视频投影, 流程设计

Abstract: Aiming at the problem of the inability to obtain the spatial relationship between video elements and geographic elements of surrounding scenes when UAV video patrols, this paper proposes a method of fusion of UAV real-time video and 3D geographic scenes. This method obtains real-time UAV patrol videos by setting route stations, constructs 3D geographic scenes using high-resolution oblique photography models, projects the videos in 3D geographic scenes, and constructs video projection parameter standards and UAV data transmission models. Realize the fusion display of UAV real-time video and 3D geographic scenes. Design the application process of UAV real-scene fusion, and carry out experimental verification through specific cases. The experimental results show that the real-scene fusion of the UAV has a good expression effect, the video and the 3D geographic scene have a high degree fusion, and the video picture distortion is small. This method extends the UAV video application to 3D space, and gives a spatial reference to the video elements.

Key words: 3D geographic scene, real-scene fusion, UAV patrol, video projection, process design