江苏省南京市南京大胜关长江大桥低空影像数据集
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覆盖范围:以大桥主跨为中心,上下游各 1 km、两岸各 500 m 的矩形区域(约 2 km × 1 km)。 • 采集时间:2024-03-15 至 2024-05-30,分 8 架次、无云天气上午 9:00-11:00 完成。 • 传感器:DJI M300 RTK + Zenmuse P1(全画幅 45 MP)/禅思 L2(激光雷达)。 • 分辨率: – 正射影像:地面采样距离(GSD)1.2 cm; – 激光点云:平均密度 600 pts/m²,高程精度 ±3 cm; – 视频:4K@30 fps,H.264,60 Mbps。 • 数据量:原始 680 GB,处理后 210 GB(含影像、POS、点云、三维模型、元数据)。
Coverage: A rectangular area centered on the main span of the bridge, extending 1 km upstream and downstream respectively, and 500 m from both banks, with an approximate size of 2 km × 1 km. • Data Acquisition Period: From March 15, 2024 to May 30, 2024, completed in 8 sorties during 9:00–11:00 AM on cloud-free days. • Sensors: DJI M300 RTK paired with either Zenmuse P1 (full-frame 45 MP) or Zenmuse L2 (LiDAR). • Resolution: - Orthophoto: Ground Sampling Distance (GSD) of 1.2 cm; - LiDAR point cloud: Average point density of 600 pts/m², with elevation accuracy of ±3 cm; - Video: 4K@30 fps, H.264 encoding, 60 Mbps bitrate. • Data Volume: 680 GB of raw data and 210 GB of processed data, including imagery, POS data, point clouds, 3D models and metadata.




