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Article #18617

Photo radar enforcement and machine vision

#18617
From: barry ornitz
Date: Fri, 12 Feb 1988 13:51
31 lines
2345 bytes
In article <17308@glacier.STANFORD.EDU> jbn@glacier.UUCP (John B. Nagle) writes:
>
>     Gadgets like this, although rare in the US, have been around for
>years in Germany and Japan.  But the radar/lidar approach really ought
>to be replaced with a motion vision system which matched the images
>from frame to frame and measured speed in that way.  The major problem
>is that television resolution isn't good enough to read a licence plate
>given a field of view that covers an entire road.  But once HDTV cameras
>become generally available, this problem should go away.  Even without
>HDTV technology, it may be possible to make this work, although it will
>probably take one camera per lane.

A company in Knoxville, TN, [Perceptics] has a contract with the Federal gov-
ernment to provide machine vision systems that will read license plates.  For
the present, this is a low-speed application for reading plates at US borders.
I think their field of view is rather large, but they are having problems
with the different sizes of lettering found on typical license plates.  High
definition solid-state cameras are readily available, the Kodak Megaplus ( ?
not sure about the name - different Kodak division) for example with 1024 x
1024 resolution.  I hope these Perceptics systems are as reliable as the one
we bought.  ;-)
                                             Barry
 -----------------
|  ___  ________  |
| |  / /        | |  Dr. Barry L. Ornitz   UUCP:...!rochester!kodak!ornitz
| | / /         | |  Eastman Kodak Company
| |< < K O D A K| |  Eastman Chemicals Division Research Laboratories
| | \ \         | |  P. O. Box 1972
| |__\ \________| |  Kingsport, TN  37662       615/229-4904
|                 |
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Message-ID: <1128@kodak.UUCP>
Path: arc1-ca.pugleaf.net!utzoo!mnetor!uunet!husc6!bbn!rochester!kodak!ornitz
References: <602@anasaz.UUCP> <9504@steinmetz.steinmetz.UUCP> <17308@glacier.STANFORD.EDU>

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Path: arc1-ca.pugleaf.net!utzoo!mnetor!uunet!husc6!bbn!rochester!kodak!ornitz
From: ornitz@kodak.UUCP (barry ornitz)
Newsgroups: sci.electronics,rec.ham-radio,rec.autos
Subject: Photo radar enforcement and machine vision
Message-ID: <1128@kodak.UUCP>
Date: 12 Feb 88 13:51:34 GMT
References: <602@anasaz.UUCP> <9504@steinmetz.steinmetz.UUCP> <17308@glacier.STANFORD.EDU>
Reply-To: ornitz@kodak.UUCP (barry ornitz)
Followup-To: rec.autos
Organization: Eastman Kodak Co, Rochester, NY
Lines: 31
Keywords: license plate, machine vision, radar, enforcement
Summary: new technology