摘要
无人机倾斜摄影从航空平台多视角同步采集影像,可通过倾斜摄影测量,三维建模等技术生成真实的三维模型,是目前地形级到城市级实景三维模型重建最主要的技术手段之一。本文总结归纳了目前无人机倾斜摄影三维建模过程中的关键技术,重点介绍了三维场景重建和倾斜摄影三角网模型的语义提取、单体化、实体化处理等技术方法及研究现状,指出了目前无人机倾斜摄影三维建模技术仍存在的问题,并从无人机路径规划、数据获取、建模技术、模型表达四方面对该领域潜在的发展趋势和研究方向进行了分析与展望。
Unmanned aerial vehicle(UAV)oblique photogrammetry,which synchronously collects images from multiple perspectives on the aerial platforms,can generate realistic 3D models through oblique photogrammetry measurements and 3D modeling technologies.It is currently one of the main technical means for reconstructing real-world 3D models from terrain to city scales.The article summarizes and categorizes the key technologies in UAV oblique 3D modeling,focusing on the current methods and research status of 3D scene reconstruction,semantic segmentation,individualization,and objectified processing of oblique photogrammetry triangular mesh models.The article points out the existing problems in UAV oblique 3D modeling technology and analyzes and forecasts potential development trends and research directions in terms of UAV path planning,and data acquisition,modeling techniques,and model representation.
作者
刘欣怡
张永军
范伟伟
王森援
岳冬冬
刘梓航
贾琛
景慧莹
钟佳辰
LIU Xinyi;ZHANG Yongjun;FAN Weiwei;WANG Senyuan;YUE Dongdong;LIU Zihang;JIA Chen;JING Huiying;ZHONG Jiachen(School of Remote Sensing Information Engineering,Wuhan University,Wuhan 430079,China)
出处
《时空信息学报》
2023年第1期41-48,共8页
JOURNAL OF SPATIO-TEMPORAL INFORMATION
基金
国家自然科学基金项目(42201474)。
关键词
无人机
倾斜摄影测量
实景三维中国
三维建模
实体化
UAV
oblique photogrammetry
3D real scene of China
3D modeling
objectified processing
