摘要
实景三维是传统测绘技术面向新时期经济发展与生态文明建设需求的一次转型升级。面对新的测绘需求,依照实景三维地形级、城市级、部件级的三级分类进行了需求分析。结合相关需求对倾斜摄影测量、机载激光雷达(light detection and ranging,LiDAR)、激光SLAM(simultaneous localization and mapping)等常用的模型重建方法进行了讨论与分析,探究了多源数据融合建模的可能路线,总结归纳了现有实景三维建设成果,并展望了未来可能的发展趋势与应用前景。
3D realistic geospatial scene is a transformation and upgrading of the traditional surveying and mapping technologies to meet the needs of economic development and ecological civilization construction in the new era.Facing the new requirements of surveying and mapping,this paper analyzes the different needs of three different levels of 3D realistic geospatial scene,which are terrain level,city level and component level.Three commonly used model reconstruction methods,oblique photogrammetry,airborne LiDAR,and laser SLAM,are discussed and analyzed.And the possible route of 3D modeling by multi-source data fusion is explored as well.The existing 3D realistic geospatial scene construction achievements in several cities are summarized,and the possible development trends and application prospects in the future are discussed.
作者
刘冰鑫
张永军
刘欣怡
LIU Bingxin;ZHANG Yongjun;LIU Xinyi(School of Remote Sensing and Information Engineering,Wuhan University,Wuhan 430079,China)
出处
《测绘地理信息》
CSCD
2023年第4期1-6,共6页
Journal of Geomatics
基金
湖北省科技重大项目(2021AAA010-3)
国家自然科学基金(41871368)。
关键词
实景三维
三维重建
倾斜摄影
激光雷达
3D realistic geospatial scene
3D reconstruction
oblique photogrammetry
LiDAR
