Article View: sci.electronics
Article #18617Photo radar enforcement and machine vision
From: barry ornitz
Date: Fri, 12 Feb 1988 13:51
Date: Fri, 12 Feb 1988 13:51
31 lines
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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
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| ___ ________ |
| | / / | | 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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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