【摘要】 由于缺少可靠的控制点,很难对遥远海岛进行几何精校正。在假定海岛岸线相对稳定的情况下,提出一种基于海岸线配准的几何校正方法。首先,基于波谱分析从卫星影像提取海岸线;接着,根据海图上陆地特定的颜色提取海岸线;最后,通过将两种岸线进行配准实现了几何精校正。试验表明这个方法可行,校正结果也令人满意。更多还原

【Abstract】 The precision rectification of satellite image of remote island is hard to perform for lack of reliable ground control points.In this paper,we present a promising geometric rectification method based on registration of coastline.Supposing the coastline of island is relative stable.Firstly,we retrieve the coastline from the satellite image based on spectrum analysis.Then,we retrieve the coastline from the chart based on the distinctive color of land.Finally,we fulfill the precision rectification by registration of two coastlines.Experiments show that the method is reasonable and results are satisfying.更多还原