自从陆地卫星发射以来,已经提出了不少关于陆地卫星数据信息提取的方法,其中最重要的为Karhunen—Loeve变换和Kauth-Thomas变换。这些变换基本上都是先用已有的数学统计方法(主成分分析等)对图象数据进行运算而不管其结果如何,仅仅在通 Since land-based satellites were launched, many methods have been proposed for extracting information from terrestrial satellite data. The most important of these are the Karhunen-Loeve transform and the Kauth-Thomas transform. These transformations are basically the first to use the existing mathematical statistics (principal component analysis, etc.) of the image data to operate regardless of the result, just pass