摘要：Mainstream line is significant for the yellow river situation forecasting and flood *** effective statistical feature extraction method is proposed in this *** this method, a between-class scattering matrix based projection algorithm is performed to maximize between-class differences, obtaining effective component for classification;then high-order statistics are utilized as the features to describe the mainstream line in the principal component *** are performed to verify the applicability of the *** results both on synthesized and real scenes indicate that this approach could extract the mainstream line of the yellow river automatically, and has a high precision in mainstream line detection.