南极区域遥感影像融合处理质量评价研究

摘要

南极是地球上对全球气候变化最敏感、响应最迅速的区域之一，针对南极冰盖变化的监测对很多领域有着十分重要的意义。本文针对南极区域选取MODIS与Land -sat ETM＋两种遥感影像，通过ENVI遥感平台，利用包括WAVELET变换法、PCA变换法、BROVEY变换法和HPF变换法等4种影像方法进行融合，并选择均值、标准差、偏差指数、相关系数等评价指标，对融合后的影像进行评价。得出结论：ETM＋影像WAVELET算法融合效果最好，而对于Modis影像PCA算法融合效果最好，两种卫星影像对不同尺度的监测都有着各自的优势。%The South Pole is one of the most sensitive and rapid response areas to global climate change on earth .Monitoring the Ant-arctic ice sheet through remote sensing technology is very important for many areas ., In this paper we selected the MODIS and Land-sat ETM +remote sensing image for the Antarctic area , under the ENVI remote sensing platform , including the method of WAVE-LET transform, PCA transform method is used , BROVEY transform method and HPF transform method and so on four kind of image fusion methods , and choose such as mean , standard deviation , deviation index , the correlation coefficient of evaluation index to evalu-ate fused images .Conclusion the ETM +image WAVELET fusion algorithm works best , and for best image Modis image PCA algo-rithm fusion effect .Both satellite images of different scales of monitoring has its own advantages .