LITERATURE SURVEY OF AUTOMATIC FACE RECOGNITION ...

the brain recognizes a face has long fascinated neurobiologists, many of whom
believe that the brain identifies faces as "special" and very different from other
visual objects. The human brain combines motion and shape information to
recognize faces and facial expressions. More recent studies have suggested that
there may even be particular neurons tuned to the identity of one particular
person. These neurons, according to that theory, lie in the "fusiform face area"
FFA, known to be particularly active when a person encounters a face. An
individual brain cell is capable of complex pattern recognition. Single neurons
dedicated to the recognition of a particular person in different situations and
appearances.
Now scientist’s mission to design computers that “see” faces the way
humans do provides more evidence concerning a debate in cognitive
psychology. Aleix Martinez, assistant professor of electrical engineering at Ohio
State University developed a model of how the brain recognizes the faces of
people we’ve seen before, and how we distinguish facial expressions. He has
shown that his model of this brain function that we use our knowledge of motion
and shape combine together to recognize faces and facial expressions. These
two activities take place in different areas of the brain, and some scientists
believe that the mental processes involved are completely separate as well;
others believe that the two processes are closely linked.
1.3 In case of insect “Bees”
Honeybees may look pretty much all alike to us. But it seems we may not
look all alike to them. A study has found that they can learn to recognize human
faces in photos, and remember them for at least two days. The bees probably
don’t understand what a human face is, to the bees the faces are spatial
patterns. Bees are famous for their pattern­recognition abilities. new study shows
that they can recognize human faces better than some humans can—with one­
ten thousandth of the brain cells.
11