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To train the frontal face model, we collected face image samples from 40 individuals for the training set. For each person, we had three im ages in three pose views (left 15°, frontal, right 15°); all these images are extracted from the Feret database (NIST, 2001). We labeled each of these 120 face images with 58 points around the main features, including eyes, mouth, nose, eyebrows, and chin. Some labeled training face images can be seen in Figure 8.