无人机倾斜摄影技术在大比例尺地形图测绘中的应用探讨

针对传统垂直摄影生产的1:500地形图精度超限,不能满足相关规范的问题,提出使用倾斜摄影技术进行1:500地形图生产的作业方案。首先对倾斜摄影在大比例尺地形图中的作业流程进行介绍,其次以实际生产项目为例,对整个作业流程进行详细介绍,并利用特征检测点对生产的地形图精度进行检测。通过检测可知,该文采用的方法生产的1:500地形图,精度可以满足相关规范,可以为生产大比例尺地形图的同行从业者带来借鉴。

Aiming at the problem that the accuracy of the 1:500 topographic map produced by traditional vertical photography exceeds the limit and cannot meet the relevant specifications,proposes an operation plan for the production of 1:500 topographic map using the oblique photography technology.Firstly,the operation process of oblique photography in large-scale topographic map is introduced,and secondly,the entire operation process is introduced in detail by taking the actual production project as an exemplar,and the accuracy of the produced topographic map is detected by using feature detection points.Through testing,it can be seen that the 1:500 topographic map produced by the method used in this paper can meet the relevant specifications in accuracy,which can be used as a reference for the practitioners who produce largescale topographic maps.