无人机实时视频与三维地理场景融合  

Fusion method of UAV real-time video and 3D geographical scene

作　　者：王磊 周鑫鑫 吴长彬[1,2] WANG Lei;ZHOU Xinxin;WU Changbin(School of Geographical Sciences,Nanjing Normal University,Nanjing 210046,China;Key Laboratory of Virtual Geographic Environment,Ministry of Education,Nanjing Normal University,Nanjing 210046,China)

机构地区：[1]南京师范大学地理科学学院,江苏南京210046 [2]南京师范大学虚拟地理环境教育部重点实验室,江苏南京210046

出　　处：《测绘通报》2021年第12期33-37,43,共6页Bulletin of Surveying and Mapping

基　　金：江苏省科研与实践创新计划(SJCX20_0428)。

摘　　要：针对无人机视频巡查时无法获取视频要素与周围场景地理要素的空间关系等问题,本文提出了一种无人机实时视频与三维地理场景融合方法。该方法通过设置路线站点获取无人机实时巡查视频,利用高分辨率倾斜摄影模型构建三维地理场景,将视频在三维地理场景中投影,构建视频投影参数规范和无人机数据传输模型,实现无人机实时视频与三维地理场景融合展示;对无人机实景融合的应用流程进行设计,并通过具体案例进行试验验证。试验结果表明,无人机实景融合具有良好的表达效果,视频与三维地理场景融合度高且视频画面变形较小。该方法将无人机视频应用扩展至三维空间,为视频要素赋予了空间参考。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.

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 

分 类 号：P237[天文地球—摄影测量与遥感]