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Feature-based method for detecting landmarks from facial images was designed. The method was based on extracting oriented edges and constructing edge maps at two resolution levels. Edge regions with characteristic edge pattern formed landmark candidates. The method ensured invariance to expressions while detecting eyes. Nose and mouth detection was deteriorated by happiness and disgust.
Index Terms- Computing methodologies, image processing and computer vision, segmentation, edge and feature detection.

Y. Gizatdinova and V. Surakka, "Feature-Based Detection of Facial Landmarks from Neutral and Expressive Facial Images," in IEEE Transactions on Pattern Analysis & Machine Intelligence, vol. 28, no. , pp. 135-139, 2006.
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