“…For detecting features, still many of the current approaches do not automatically extract the features, do not consider time sequence frames, and it is common to divide the image in parts instead of analyzing the whole face image at once. A step forward was done in [18] and [13,10] were the features were detected automatically. About the classification techniques, we found on literature: template-based classification [25], fuzzy classification, ANN based classification [12], HMM based classification and also Bayesian classification [3] [17] and [18].…”