Research on locality preserving projections based on center field
Dan Du · Jisuanji gongcheng yu sheji · 2011
In order to solve the problem that the nearest neighbor graph can not always accurately estimate the local manifold structure,a new algorithm of locality preserving projections based on the center field is presented.The algorithm used LBP to obtain the high-order statistical information,and then projected onto the manifold LPP space.To get the manifold spaces is to construction of nearest neighbor graph based on the Euclidean distance of center field between image,So that it can be better and stable express the local manifold structure,and get a smaller number of feature dimensions.The results of the comparative experiment on the ORL face images indicate that the proposed method can effectively reduce dimension and achieve a higher recognition rate.