A robust eye localization algorithm for face recognition

The accuracy of face alignment affects greatly the performance of a face recognition system. Since the face alignment is usually conducted using eye positions, the algorithm for accurate eye localization is essential for the accurate face recognition. In this paper, an algorithm is proposed for eye localization. First, the proper AdaBoost detection is adaptively trained to segment the region based on the special gray distribution in the region. After that, a fast radial symmetry operator is used to precisely locate the center of eyes. Experimental results show that the method can accurately locate the eyes, and it is robust to the variations of face poses, illuminations, expressions, and accessories.     

基于深度学习的人脸识别方法研究

作为非接触式生物识别方法之一,人脸识别在诸多情况下被广泛使用。然而,传统的人脸识别方法由于识别准确度低以及在多个场合的应用受到限制,已不能满足目前的需求。文中提出了采用深度学习的方法来实现脸部标志检测和无限制人脸识别。为解决人脸标志检测问题,使用一种深层卷积神经网络的逐层训练方法,以帮助卷积神经网络进行收敛,并提出了一种避免过拟合的样本变换方法;为了解决人脸识别问题,文中提出了一种SIAMESE卷积神经网络,其在不同部位和尺度上进行训练。实验测试显示,ORL和人脸识别算法的精度分别达到了91%和81%。     

一种基于肤色和脸部特征的人脸检测方法

针对人脸检测问题中快速性与准确性难以同时满足的情况,提出了一种将肤色和脸部特征相结合的方法来检测人脸.由于通过基于肤色的算法能快速定位出人脸大致位置,因而检测速度能达到实时的要求;同时利用脸部特征进一步细检,可保证检测的精确性.