SUSAN—A New Approach to Low Level Image Processing
International Journal of Computer Vision
Recognizing Action Units for Facial Expression Analysis
IEEE Transactions on Pattern Analysis and Machine Intelligence
Comprehensive Database for Facial Expression Analysis
FG '00 Proceedings of the Fourth IEEE International Conference on Automatic Face and Gesture Recognition 2000
Face recognition: A literature survey
ACM Computing Surveys (CSUR)
Locating and extracting the eye in human face images
Pattern Recognition
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Eye feature extraction is of crucial importance for face recognition. Deformable template is an efficient model for this task. However, it usually suffers from the problem of local minima. To avoid local minima, in this paper, a new energy minimization process is proposed, which emphasizes on local properties of energy terms. The minimization process is divided into three steps. The iris is located firstly. Then the eye boundaries are adjusted. Finally, all energy terms are activated to tune the eye template. Each step needs not to be split to some sub-steps. Empirical comparison with other minimization processes shows the superiority of the proposed process in terms of both efficiency and accuracy.