倾斜摄影技术在丘陵山区大比例尺测图中的应用

Application of oblique photography in large-scale mapping of hilly and mountainous areas

针对丘陵山区大比例尺测图应用的需求,本文探讨了如何通过倾斜摄影的技术方法获取高精度的影像模型。首先通过分析航线布设方法、控制点布设采集要点、空三数据处理关键点等,获取满足丘陵山区大比例尺测图应用的数据模型,基于数据模型获取大比例尺地形图数据;然后通过与实地测量数据进行精度对比分析获取试验结果,结果表明倾斜摄影技术不但能满足丘陵山区1∶1000大比例尺测图的精度要求,而且大大提高了工作效率。

This paper mainly discusses how to establish high-precision image model through the technical method of tilt photography,in order to meet the needs of large-scale mapping application.Firstly,by analyzing the route layout method,the key points of the control point layout and acquisition,and the key points of aerial triangulation data processing.The data model that meets the requirements of the satisfying large-scale application of surveying and mapping is established,and large scale topographic map data is obtained based on data model.Then,the test results are obtained by comparing and analyzing the accuracy with the field measurement data,the results show that the tilt photography technique can not only meet the accuracy requirements of 1∶1000 large-scale mapping,but also greatly improve the work efficiency.