正射影像图技术在铁路勘测中的应用与发展

Application and Development of Orthographic Projection in Railway Survey

我国铁路建设正处在一个跨越式发展阶段,由于数字正射影像图具有直观、易于判读、具有地形图数学精度和影像特征、易于快速更新、从中可提取丰富的资源信息和社会发展信息等优势,数字正射影像技术为铁路建设的现状调查提供丰富翔实的资料、可以为铁路综合勘测设计提供更加直观的现状地形地貌、可以为既有铁路的改扩建提供信息和服务。

Railway construction in China is in leaping development step.As the digital orthographic projection images have the advantages as being object,easy to read,having mathematical precision and image characteristics of topographic maps,easy to rejuvenate,able to provide with abundant resource information and social development information,this kind of technology has provided with abundant and detailed material for surveying current conditions of railway construction.And it will provide not only with more object current landforms and terrains for railway comprehensive surveying design,but also with information and service for reconstruction and expansion of the existing railways.