Face-Recognition Technology Improves

Bill Stewart bill.stewart at pobox.com
Sun Mar 16 14:11:40 EST 2003


At 12:39 PM 03/16/2003 +0100, Eugen Leitl wrote:
>On Sat, 15 Mar 2003, Bill Stewart wrote:
>
> > They're probably not independent, but they'll be influenced by lighting,
> > precise viewing angles, etc., so they're probably nowhere near 100%
> > correlated either.
>
>I notice the systems mentioned in the study rely on biometrics extracted
>from flat images. Recent crop of systems actually scan the face geometry
>by using patterned light (apparently, cheaper than using a laser scanner),
>resulting in a much richer and standartized (lighting and facial
>orientation is irrelevant) biometric fingerprint.

But there are two sides to the problem -
recording the images of the people you're looking for,
and viewing the crowd to try to find matches.
You're right that airport security gates are probably a pretty good
consistent place to view the crowd, but getting the target images
is a different problem - some of the Usual Suspects may have police mugshots,
but for most of them it's unlikely that you've gotten them to sit down
while you take a whole-face geometry scan to get the fingerprint.



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