人脸的研究是跨越人文科学与自然科学的新兴交叉研究领域，在最近几年得到了模式识别领域众多学者的重视，也取得了良好的研究成果。针对人脸这种生物特征的识别，在其过程中最为重要的一个环节是特征的提取，更好的提取出人脸的特征，将会使得识别更有有效和准确，提高分类的同时，也是的识别率有良好的提高。-Face recognition research is a new cross field across the humanities and natural science, had many scholars and pattern recognition fields in recent years, also achieved good results. According to the biological characteristics of human face recognition, during which the most important one link is feature extraction, extracted face feature better, will make the recognition more effectively and accurately, improve the classification at the same time, but also improve the recognition rate with good.