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. --------------------------------------------------------------------- | We have the right to defend ourselves | http://www.jim.com/jamesd/ and our property, because of the kind | of animals that we are. True law | James A. Donald derives from this right, not from the | arbitrary power of the state. | jamesd@echeque.com
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
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. ----------------------------------------------------------------------- Jay Holovacs <holovacs@ios.com> ----------------------------------------------------------------------- PGP Key fingerprint = AC 29 C8 7A E4 2D 07 27 AE CA 99 4A F6 59 87 90 On Thu, 11 Apr 1996, Alan Horowitz wrote:
How do _people_ recognize faces?
participants (4)
-
Alan Horowitz -
jamesd＠echeque.com -
Jay Holovacs -
Peter D. Junger