三维数字地形图测绘技术的应用探讨

Discussion on the Application of 3D Digital Topographic Surveying and Mapping Technology

城市测量中应用三维数字地形图测绘技术,可以加快城市化建设速度,充分发挥信息技术的应用价值。文章研究了城市测量中三维数字地形图测绘技术的应用,在掌握三维数字地形图测绘技术的基本原理和技术流程的基础上,从数字化测绘、实景三维构建、数字摄影测量技术等多个方面出发,分析了三维数字地形图测绘技术的实践应用措施,同时,强调了今后三维数字地形图测绘技术的发展趋势,有利于提高城市测量准确性,提高城市建设与发展速度。

The application of three-dimensional digital topographic map surveying and mapping technology in urban surveying can accelerate the speed of urbanization construction and give full play to the application value of information technology.The paper studies the application of 3D digital topographic map surveying and mapping technology in urban surveying.On the basis of mastering the basic principle and technical process of 3D digital topographic mapping technology,it analyzes the practice application measures of 3D digital topographic map surveying and mapping technology from the aspects of digital mapping,real scene 3D construction and digital photogrammetry technology.At the same time,it emphasizes the development trend of the future 3D digital topographic map surveying and mapping technology,which is beneficial to improve the accuracy of urban measurement,and improve the speed of urban construction and development.