On computer face recognition:

On computer face recognition:


>> Shaving probably will not be a problem, but holding your head at a
>> slightly different angle...  will screw up the system totally,
>> unless the system has radically improved since the last time I read
>> up on it.

At 11:45 AM 4/9/96 -0500, K00l Secrets wrote:
> Well, the systems I have seen are quite good at finding people's eyes.
> Scaling (for distance), and rotation (for the angle of your head)
> therefore don't really confuse the system once it has your eyes.

Finding the eyes can only control for rotations in the plane of 
the image, when you tilt your head to one side.  They cannot 
handle the much more common case of 3D rotations, where you 
look slightly to the right or slightly to the left of camera.
Facial expressions also throw them badly.
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How do _people_ recognize faces?

This is a significant area of research, and is not that well understood. 
It is known that a dedicated area of the brain is used, and that damage 
to this area keeps people from recognizing faces even though they may 
retain their ability to recognize objects generally. Face recognition is 
much tougher than it would seem.

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Jay Holovacs <holovacs@ios.com>
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On Thu, 11 Apr 1996, Alan Horowitz wrote:

> How do _people_ recognize faces?
>

Alan Horowitz writes:

: How do _people_ recognize faces?

Some of us don't.

--
Peter D. Junger--Case Western Reserve University Law School--Cleveland, OH
Internet:  junger@pdj2-ra.f-remote.cwru.edu    junger@samsara.law.cwru.edu