Picking Out Faces In The Crowd

Cameras may be everywhere, but recognizing faces in the images is difficult for both people and machines alike. Test subjects do well at recognizing the faces of people they know in photographs. (Tony Blair is as easy to spot in a profile taken in a dark room as in a full frontal shot under the sun's glare.) But they do poorly at matching images of an unfamiliar person taken in varying light conditions, resolution, quality and camera angle. Computers have the same problem. The face-recognition...
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