摘要
针对采用固定航高飞行方式生产的山区大比例尺地形图精度不统一、易超限的问题,该文在分析倾斜摄影和仿地飞行技术后,提出采用倾斜摄影和仿地飞行相结合的方式进行地形图的生产。该文首先介绍倾斜摄影和仿地飞行技术,其次以实际项目为例,对其中涉及到的关键环节进行详细介绍,最后利用外业采集的检查点,对生产的地形图精度进行检测。检测结果表明,采用该文方案生产的地形图,其精度均匀,且可以满足1∶500地形图精度要求,可以为山区大比例尺地形图测绘带来借鉴。
In order to solve the problem that the accuracy of the large-scale topographic map of mountain area produced by fixed altitude is not unified and easy to exceed the limit,after analyzing the techniques of oblique photography and imitating ground flight,this paper proposes to use the combination of oblique photography and imitating ground flight to produce topographic maps.This paper first introduces the technology of oblique photography and ground imitation flight,then takes the actual project as an example,introduces in detail the key links involved,and finally uses the checkpoints collected by the field to test the accuracy of the topographic map.The test results show that the accuracy of the topographic map produced by this scheme is uniform,and it can meet the accuracy requirements of 1∶500 topographic map,which can be used as a reference for the surveying and mapping of large-scale topographic map in mountainous area.
出处
《科技创新与应用》
2023年第25期189-192,共4页
Technology Innovation and Application
关键词
仿地飞行
倾斜摄影
大比例尺地形图
实景三维模型
山区测绘
imitating ground flight
oblique photography
large-scale topographic map
real scene 3D model
mountain surveying and mapping
