基于改进IHS融合方法的冰川变化监测研究

随着卫星及传感器的发展，对地观测技术已广泛用于冰川变化监测中。针对多时相、同源遥感影像，提出了一种改进的IHS融合冰川变化监测方法。将不同时期影像进行改进IHS融合，使冰川变化区域突显出来，然后利用决策树分类方法对变化区域进行提取。利用两期LANDSAT影像进行基于改进IHS融合方法的冰川变化监测实验，并与常用于冰川变化监测研究的波段比值法进行比较，实验结果表明，该方法无论在定性分析还是定量分析上均优于波段比值法。

Monitoring glacier change by improved IHS fusion method

With the development of satellite and sensor,remote sensing technology has been widely used in the glacier change monitoring.In order to make the glacier change detection in the study area more efficiently and intuitively,a method of improved IHS Fusion is proposed in this paper,based on multi-temporal and homologous satellite images.Different with the traditional IHS method,the improved HIS fusion method replaces the H and S components with I component.Applying the improved IHS method,the changed region between two images at different time will be highlighted in the fused image,and then the changed areas can be extracted by using the classification method of decision tree.Two Landsat images were selected to do experimental research.The result shows that it is better than band ratio method in both the qualitative analysis and quantitative analysis.