Surveillance cameras
Ken McGlothlen
mcglk at cpac.washington.edu
Fri Mar 11 07:37:06 PST 1994
ian at geog.leeds.ac.uk (Ian Turton) writes:
| There was an article in a recent New Scientist (maybe last week) that
| mentioned the use of infrared scans of faces to identify people since its
| very hard to change the thermal image of your face by surgery. The plan is
| to scan every one passing through the airport and forward the image to the
| FBI [...]
"Stewardess? Could I get some extra ice?"
IR scans can be *so* easily messed up that I'm amazed anyone is seriously
suggesting this. A facial scan can be messed up by downing a cold drink.
Downing a hot drink. Ambient temperature. Sweating. Sucking an ice cube,
though, is one of the easiest. Or just running it across your forehead and
cheeks. Even a hat can mess one up as far as recognition purposes go.
---Ken McGlothlen
mcglk at cpac.washington.edu
mcglk at cpac.bitnet
mcglk at c3po.ring.wizards.com (NeXTmail)
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