With the development of geophysical exploration, aerospace photographing and satellite surveillance technology, the amount of acquired image data has increased sharply. 随着地球物理勘探、航空摄影、卫星监测技术的发展,人们获得的各种图像资料也与日俱增。
For the changed information observed, it is necessary to determine whether the change results from the natural processing of bio geophysical factors or the change results from satellite system or from our targets of interest. 对遥感观测到的变化信息,还需要区分是地表物理生物要素变化引起的变化,还是辐射传输路径上其它干扰因素造成的变化信息,需要从各种变化信息组分中区分目标变化信息。