基于KDA的人脸识别首先利用核方法将人脸图像数据集非线性映射到一个高维特征空间中，然后在高维特征空间中利用LDA进行线性特征提取-Face recognition based on first use of nuclear KDA method will face image data set nonlinear mapping to a high dimensional feature space, and then use LDA in high-dimensional feature space linear feature extraction