基于低空航摄技术对古遗址地面拾取精度的探讨

随着国民经济的飞速发展与城市现代化建设速度的日益加快,城市空间范围内部原有古迹遗址的保护与现代化城市空间格局建设之间的矛盾日益显现。如何使这两者之间达到平衡需要政府部门进行考量。传统田野测绘方法已不能满足现代大面积遗址测绘的要求,因此本文以苏州发掘的某处古迹为例,运用低空航空摄影测量的技术原理制作了数字正射影像图(DOM),并对生产数字线划图(DLG)及如何获取大比例尺地形图做出了详细介绍。同时基于此次实验案例分析的过程,总结了低空航空摄影测量的关键技术理论和方法,运用Pix4D mapper软件和CASS软件进行航片DOM及大比例尺地形图的生成,通过分析其处理结果的精度,总结出影响精度结果的因素。

Discuss about the Accuracy of Picking of the Monuments and Sites Based on the Low Altitude Aerial Photogrammetry Technology

With the rapid development of economy and urban modernization construction,the contradiction of ancient relics site protection and urban construction have become increasingly prominent,and how to protect both of the history of anci Traditional field surveying and mapping method cannot meet the requirements of the modem large area of Surveying and mapping sites n and reasonable arrangements for the spatial patterns of urban development has become a problem,which should be taken into account in government decision-making.The method of Traditional field surveying and mapping cannot meet the requirements of the modem large area of Surveying and mapping sites.In this paper,a case of ancient tombs in Suzhou as an example,gives a detailed introduction about use the me~od of Low Altitude Aerial Photogrammetry to make DOM,produce DLG,and access to large scale topographic map.At the same time based on the experiment case analysis,summarizes and analyzes the Low Altitude Aerial Photogrammetry key technology theory and method,using the software of Pixe4D mapper aerial photo processing to generate the DOM and use CASS software to generate large scale topographic map of the basic principles and methods,and in the end,analysis of its precision,summarizes factors that affect the precision.