测绘与空间地理信息
測繪與空間地理信息
측회여공간지리신식
GEOMATICS & SPATIAL INFORMATION TECHNOLOGY
2014年
1期
96-99
,共4页
南极%多源遥感%融合方法%融合评价
南極%多源遙感%融閤方法%融閤評價
남겁%다원요감%융합방법%융합평개
the South Pole%multi-source remote sensing%fusion method%fusion evaluation
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。
南極是地毬上對全毬氣候變化最敏感、響應最迅速的區域之一，針對南極冰蓋變化的鑑測對很多領域有著十分重要的意義。本文針對南極區域選取MODIS與Land -sat ETM＋兩種遙感影像，通過ENVI遙感平檯，利用包括WAVELET變換法、PCA變換法、BROVEY變換法和HPF變換法等4種影像方法進行融閤，併選擇均值、標準差、偏差指數、相關繫數等評價指標，對融閤後的影像進行評價。得齣結論：ETM＋影像WAVELET算法融閤效果最好，而對于Modis影像PCA算法融閤效果最好，兩種衛星影像對不同呎度的鑑測都有著各自的優勢。
남겁시지구상대전구기후변화최민감、향응최신속적구역지일，침대남겁빙개변화적감측대흔다영역유착십분중요적의의。본문침대남겁구역선취MODIS여Land -sat ETM＋량충요감영상，통과ENVI요감평태，이용포괄WAVELET변환법、PCA변환법、BROVEY변환법화HPF변환법등4충영상방법진행융합，병선택균치、표준차、편차지수、상관계수등평개지표，대융합후적영상진행평개。득출결론：ETM＋영상WAVELET산법융합효과최호，이대우Modis영상PCA산법융합효과최호，량충위성영상대불동척도적감측도유착각자적우세。
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 .
