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三峡库区三斗坪大坝区及其周围地区在1994到1998年期间,由于大坝的施工地面发生了巨大变化。这些变化在1990、1997和1998年获取的SPOT遥感图像上都有明显的记录,其中一些地面变化细节在分辨率10m的全波段(P)图像更为清楚。这里利用三种方法(高通滤波算法[2](HPFalgorithm,Chavezetal.1991)、RWM-ARSIS方法(RanchinandWald,1999)和P+XS算法[1](Anonymous1986))对三峡工程三斗坪大坝区的多时相高空间分辨率的SPOT图像(获取时间为1990,1997和1998年,包括全波段P图像和多波段XS图像)进行融合处理,在提取测区地面动态变化信息的同时,从理论和实际应用的角度探讨了不同数据融合方法的效果。
Sandouping Dam Area and Its Surrounding Area in the Three Gorges Reservoir Area During 1994 and 1998, tremendous changes took place in the construction of the dam. These changes were clearly recorded on the SPOT remote sensing images acquired in 1990, 1997 and 1998. Some of the details of the ground changes were clearer in the full-band (P) image with a resolution of 10 m. Here we use three methods (HPF algorithm, Chavez et al. 1991), RWM-ARSIS method (Ranchin and Wald 1999) and P + XS algorithm (Anonymous 1986) (Including the full-band P-images and the multi-band XS images in 1990, 1997 and 1998). In addition to extracting the information of dynamic changes in the measurement area, The effect of different data fusion methods is discussed in practical application.