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.
出处
《测绘与空间地理信息》
2014年第1期96-99,共4页
Geomatics & Spatial Information Technology
基金
东北林业大学大学生科研训练项目(2012046)资助
关键词
南极
多源遥感
融合方法
融合评价
the South Pole
multi- source remote sensing
fusion method
fusion evaluation
