At 3:09 PM +0200 7/5/01, Eugene Leitl wrote:
On Thu, 5 Jul 2001, David Honig wrote:
Parking tickets? Go to the local cop/FBI site, download the *Wanted* pix, fab a mask, have fun.
Hmm. It might work for the current generation of cams, but not for stuff which actually measures the face topography. And, of course, you can't hide the other biometrics. It seems, even plastic surgery has its limits.
The archives, or a search engine, will turn up many past discussions we've had of face recognition and biometrics. One of the interesting things is that _ear shape_ is one of the best correlation features. Of course, to measure ear shape the camera has to have a good view, unobscured and at close enough range to get a decent number of pixels. (This makes sense, that ear shape would be a good metric. I've been noticing the variations in ear shapes since I heard about this scheme. Also, I can imagine the various conformal transformations--different angles of view, for example--preserve certain relationships well.) I can believe some kind of automated face recognition is being done with points of entry, such as international airport arrival points, but I find it hard to swallow that "crowd shots" from overhead cameras can do anything meaningful. The Tampa action may be mostly social engineering: "We're watching you!" --Tim May -- Timothy C. May tcmay@got.net Corralitos, California Political: Co-founder Cypherpunks/crypto anarchy/Cyphernomicon Technical: physics/soft errors/Smalltalk/Squeak/agents/games/Go Personal: b.1951/UCSB/Intel '74-'86/retired/investor/motorcycles/guns