www.smartcctvltd.com/pages/news/2008/15022008.html -
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Published on: 2/15/2008
Last Visited: 2/22/2008
Mark Williamson, the director of Firstsight Vision, agrees: ,Gigabit Ethernet is making a big difference for ANPR systems.If I look back to other systems, the cables could not reach far enough away, so we needed to place the intelligence on board the camera.But now, we can distribute the processing away from the cameras.'
Williamson says this is a very efficient use of resources for speed cameras, since the image processing required to recognise the number plate is only necessary when a vehicle has caused an offence, meaning processors on board each camera would be left idle for large periods of time.With a network infrastructure, however, the central server can be kept busy with jobs from many different cameras across different locations.
As with all vision applications, the illumination of ANPR systems is of the utmost importance.According to Williamson, the infrared illuminators used in security systems are not bright enough to give a good image at large distances.
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All of which helped the system to comply with the rail network's stringent regulations. ,One of our biggest costs was putting it through testing,' says Mark Williamson, director of Firstsight Vision.