From: jim bell <jimbell@pacifier.com>
Date: Wed, 10 Apr 1996 09:44:27 +0800
To: Mike McNally <jamesd@echeque.com
Subject: Re: (Fwd) British Study Claims That Photo Credit Cards Don't   Work
Message-ID: <m0u6iqv-0008ymC@pacifier.com>
MIME-Version: 1.0
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At 07:57 AM 4/9/96 -0500, Mike McNally wrote:
>jamesd@echeque.com wrote:

>There are supposedly some new techniques that look at the infrared 
>signature of your face (like, I guess, distribution & position of 
>hot & cold spots), and that's less likely to be fooled by facial 
>hair and other superficial disguises.  It's probably a fairly simple
>technology, and could be applied to the credit card ID problem.

I think this is based on looking at your face with near-infrared, not the medium and far (thermal) infrared.  Near infrared is supposed to penetrate flesh far better, so your blood vessels are visible and form a pattern which can be recognized.

Jim Bell
jimbell@pacifier.com