摘要
针对应急测绘中无人机视频帧数据与三维地理信息平台中的底图影像数据分辨率不一致、GNSS/IMU几何精度差,且基于已有的匹配方式会出现匹配错位等问题,提出视频关键帧与底图数据库影像匹配融合方法。通过对视频帧影像实时提取、视频帧影像与GNSS/IMU数据实时同步,根据GNSS/IMU精度以及底图数据类型情况,分别采用帧影像实时纠正、帧影像与底图实时匹配以及几何纠正与帧影像两两匹配相结合的方法,实现了视频关键帧与底图数据库影像匹配融合。该方法提高了视频帧影像与三维地理信息平台的实时融合效果,为无人机视频实时应急测绘提出了解决方法。
To solve the problems that inconsistent resolution between UAV video frame data and base map image data in three-dimensional geographic information platform,poor geometric accuracy of GNSS/IMU,and matching dislocation based on existing matching methods,this paper proposes a method of matching and fusing video key frames with image data of base map database.Through real-time extraction of video frame images and real-time synchronization of video frame images with GNSS/IMU data,according to the accuracy of GNSS/IMU and the type of base map data,this paper realizes the matching and fusion of video key frame and base map database image by the methods of real-time correction of frame image,real-time matching between frame image and base map.It improves the real-time fusion effect of video frame image and three-dimensional geographic information platform,and puts forward a solution for UAV video real-time emergency mapping.
作者
孟静
王凤
李玉琳
李娟
MENG Jing;WANG Feng;LI Yulin;LI Juan(Shandong Institute of Land Surveying and Mapping,Jinan 250000,China;PLA 61206,Beijing 100043,China)
出处
《遥感信息》
CSCD
北大核心
2022年第2期91-96,共6页
Remote Sensing Information
关键词
应急测绘
视频帧
匹配
融合
地理信息
emergency mapping
video frame
matching
fusion
geographic information
