论文部分内容阅读
一、前言摄影测量的任务是利用航空和航天摄影资料及立体测图仪器测制地形图。数字测图系统是利用电子计算机建立和解算数学模型以完成测绘地图的目的。现今的数字测图系统基本上由一台容量大、速度快、功能强的电子计算机组成。在实际应用中,这样的系统存在下列缺点: 1) 由于对计算机性能要求高,需要购买价格贵的计算机。
I. Introduction The task of photogrammetry is the use of aerial and aerospace photographic data and three-dimensional mapping instruments to measure topographic maps. Digital mapping system is the use of electronic computers to establish mathematical model of reconciliation to complete the mapping map purposes. Today’s digital mapping system basically consists of a large capacity, fast, powerful electronic computer components. In practice, such systems have the following disadvantages: 1) Due to the high performance requirements of the computer, the expensive computer needs to be purchased.