The Theroeies and Methods of Mixed Pixel Decomposition
混合像元分解的理论与方法：以神木县为例

Recognition and classification is an important link for the applications of remote sensing techmologies, and the existence of mixed pixels is one of the main factors affecting the preci sion of recognition and classification. In order to improve the precision, four approaches are put forward in this paper, including matching pixel decomposition, dimidiate pixel decomposition, two neighbouring pixels decomposition, relative pixel decomposition. The precision isonly 63.65 percent before the decomposition, while the precision reaches 88.87 percent after that. From this point, the effect of the mixed pixel decomposition is remarkable.