Computer-Assisted DEM-Based Aero Photography Design

在航空测量，主要因素是地面波动。然而，大多数为航空测量设计使用的外部航空测量软件不考虑地面波动影响。因此，设计结果有比较 randomicity 和“差距”被期望。一个航空测量设计系统被与 DEM 数据分析地面波动影响到设计结果开发以便前面的重叠和方面重叠能根据块地面波动被认为正当遇见说明或标准。这个系统设计的数据与真实的飞数据相比。结果证明使用 DEM 在航空测量设计帮助能保证设计结果更好适合真实地面。

In aerial photography, the primary factor is terrain undulation. However, most of the external aerial photography software used for aerial photography design do not take terrain undulation influence into consideration. Therefore, the design result has comparative randomicity and ＂gaps＂ are expected. An aerial photography design system is developed by analyzing the terrain undulation influence to the design result with DEM data so that the forward overlap and side overlap can be justified according to the block terrain undulation to meet specifications or standards. The data designed by this system is compared with the real flying data. The results show that making use of DEM to assist in aerial photography design can ensure that the designed result fits the real terrain better.