摘要
针对垂直摄影测量生产地形图存在的高程精度不稳定、超限等问题,提出将垂直摄影测量与机载激光雷达测量相结合,生产大比例尺地形图,即利用垂直摄影测量采集地形图平面信息,利用机载激光雷达技术获取地形图高程信息,以实际项目对此方法进行了验证。结果表明,此方法生产的地形图精度满足1∶500的地形图要求,可为大比例尺地形图生产提供参考。
According to the unstable and overrun height accuracy in the measurement of topographic map with photogrammetry,the study proposes the combination of vertical photogrammetry and airborne laser radar measurement,and the production of large scale topographical map,i.e.topographic map plane information can be collected with vertical photogrammetry,and topographic map elevation information can be collected with airborne laser radar technology.Then the study verifies the method with actual project.The results show that the precision of topographic map produced by the method meets the requirements of 1∶500 topographic map.This can provide reference for the production of large scale topographical map.
作者
邢烨
Xing Ye(Guangdong Zhonggong Architectural Design Institute CO.,LTD.,Guangzhou 510700,China)
出处
《黑龙江科学》
2023年第4期159-161,共3页
Heilongjiang Science
关键词
垂直摄影
机载激光雷达
大比例尺地形图
高程精度
Vertical photography
Airborne laser radar
Large scale topographic map
Height accuracy
