A Kind of Accuracy Increasing Lip Feature Point Location Algorithm

In order to solve the feature points location problem, which are used to describe the month appearance, a kind of feature location algorithm was proposed. It realizes the preliminary feature point location through establishing the affine relationship between lip gray scale image and lip feature point vector. Based on it, the local texture model is used to adjust every point s accurate location. The feature point location algorithm the paper proposed overcomes the shortage of traditional local texture model based only algorithm, which may get in the local convergence. The paper proposes a kind of local texture model which is suitable to describe the lip appearance and improves the accuracy of feature point location.