This paper describes a method for orthophoto updating rapidly based on a local interest area in the case of rapid topographic support.本文探讨了一种在应急测绘保障情况下基于城市目标区域的正射影像快速更新方法。
The 4d productions is the historic result of the developing of the surveying technical, which are digital orthophoto map, digital elevation model, digital raster map and digital line map.以数字正射影像图、
数字高程模型、数字栅格地图、数字线划地图为代表的“4d”产品是测绘技术发展到当今历史阶段的产物。
Thus, the paper gives the the concept of corresponding digital orthophoto map applying to stereo scene, and discusses the theory, characteristic, production and application in city management.为此,作者提出了能够进行立体观察的同名数字正射影像图的概念,并详细阐述了这一产品的实现原理、技术特色、生产方法和在城市管理中的应用。