多源遥感影像融合方法的比较与评价

Compare and Evaluation of Fusion Methods of Multi-sources Remote-sensing Image

分析了多源遥感影像融合的方法和融合过程。选取许昌市某地区的LANDSAT ETM影像为实验数据,分别进行基于主成分变换,乘积变换,比值变换,HIS变换,小波变换的影像融合。在MATLAB中编程并计算反映亮度信息、清晰度、光谱信息、信息量等定量评价参数,对融合效果进行定性和定量的评价。实验表明,不同的融合方法进行融合时会产生不同的效果。

The author analyzed methods and fusion process of multi-sources remote-sensing image fusion.Then,the author chose LANDSAT ETM image of a place of Xuchang as test data,and made image fusion of brovey,ratio transformation,HIS transform and wavelet transform based on PCA.Finally,the author programmed and reflected luminance information,definition,spectral information and amount of information in MATLAB,and evaluated qualitative and quantification of fusion effect.The experiment showed that different fusion methods will produce different effects based on different fusion methods.