从Google Earth上获取精确定位DOM的探求

Research on Obtaining Precise Positioning of DOM from the Google Earth

随着社会生产力的飞速发展,各行各业对正射影像(DOM)的需求越来越大,但传统的正射影像制作成本较高,工期也相对较长。而Google Earth上的影像几乎覆盖了全球所有大中城市及周边地区,且局部地区的有效分辨率可达0.5 m以上,但其定位偏差较大。本文着重研究了如何从Google Earth上获取精确定位的DOM。

With the rapid development of social productive forces, the digital orthophoto map （DOM） is in growing demand by all over the world; however, traditional DOM production costs are relatively high, and it has relatively long duration. While the images on Google Earth cover almost all the world including major cities and surrounding areas, and the local effective resolution comes up to 0.5 meters and above, but its positioning deviations are larger. This article focuses on how to obtain DOM ＇s precise location from Google Earth.