Face recognition based on unsupervised optimal discriminant plane
基于无监督最佳鉴别平面的人脸识别*

As an important supervised feature extraction method, optimal discriminant plane has great influence in the facial feature reduction. However, traditional optimal discriminant plane is based on Fisher criterion function and it can only be used in supervised pattern. This paper presented a novel method to extend optimal discriminant plane to unsupervised pattern. Using the maximum ratio between fuzzy between-class scatter and within-class scatter in the projection space as its optimization objective, an opti...