青藏高原水系特征遥感影像解译方法研究

我国西部地区1∶50000地形图的缺失,制约了该区域经济建设和社会发展,给我国西部大开发战略的实施带来了困难。影像解译是整个测绘工程中的关键环节之一,水系特征又是各类地物中的关键要素。本文通过对不同影像中青藏高原水系特征的解译,结合其它技术手段,综合运用各类信息,在此基础上提出了针对不同水系特征的解译提取方法。结果表明,针对不同水系特征的特点,利用不同的遥感数据源,结合其它技术手段,加上各类信息的运用,能够有效地提取青藏高原的各类水系特征,基本能够满足1∶50000地形图的测绘需求。

The method on image recognizing and interpreting surface hydrologic features with remote sensing on qinghai-tibetan plateau

Some of the 1: 50 000 topographic maps are still not available in Western China. With the development of the remote sensing, it is applied more and more in topographic maps production. The image recognizing and interpreting is an important step in this process, and the hydrologic feature is one of the most important features detected on the surface. In this paper, multisource images are analyzed in different method, and the hydrologic features are extracted. The result shows that different hydrologic features could be extracted with different methods, and the outcome can be applied in 1∶50 000 topographic maps production.