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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.
With the development of satellites and sensors, the earth observation technology has been widely used in the monitoring of glacier changes.Aiming at the multi-temporal and homologous remote sensing images, an improved IHS fusion glacial change monitoring method is proposed.IHS will be improved in different periods And the glacier change area is highlighted, and then the decision tree classification method is used to extract the change area.The glacial change monitoring experiment based on the improved IHS fusion method is carried out by using two-stage LANDSAT imagery, and is compared with the band ratio method commonly used in glacier change monitoring research The experimental results show that this method is superior to the band ratio method in both qualitative analysis and quantitative analysis.