Partially Occluded Facial Image Retrieval Based on a Similarity Measurement

<div>Examples of SIFT matching for face recognition: SIFT matching between (a) a normal face and an expressive face, (b) a normal face and a face occluded by sunglasses, and (c) a normal face and a face occluded by a scarf.</div>

Mathematical Problems in Engineering

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Figure 4: Partially Occluded Facial Image Retrieval Based on a Similarity Measurement 