Boosting for fast face recognition
We propose to use the AdaBoost algorithm for face recognition. AdaBoost is a kind of large margin classifiers and is efficient for online learning. In order to adapt the AdaBoost algorithm to fast face recognition, the original AdaBoost which uses all given features is compared with the boosting feature dimensions. The comparable results assure the use of the latter, which is faster for classification. The AdaBoost is typically a classification between two classes. To solve the multi-class recognition problem, we propose to use a constrained majority voting strategy to largely reduce the number of pairwise comparisons, without losing the recognition accuracy. Experimental results on a large face database of 1079 faces of 137 individuals show the feasibility of our approach for fast face recognition.