Xref: utzoo sci.electronics:2212 rec.ham-radio:3994 rec.autos:7227 Path: 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 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 | | -----------------