DM launches new technology in ANPR cameras

03 Feb 09

Available in analogue and IP models, DM’s HyperSense technology removes ambient light from a scene, only leaving objects that strongly reflect the infrared light emitted by the integrated IR LED array.

Designed for deployment in a range of applications, such as petrol forecourt monitoring and car park barrier control, the new range includes dedicated ANPR cameras, which capture the plate detail of passing vehicles, and combined ANPR/Overview cameras, to associate colour images of the vehicles with their number plates.

The new cameras can be integrated with existing NetVu Connected CCTV installations without the need for a complete re-design or re-installation of a system.

Pauline Norstrom, DM’s director of worldwide marketing, said: “Our industry leading HyperSense ANPR optimised camera solutions have been created to unlock a number of significant operational benefits in testing conditions, such as those at petrol stations, where drive-offs are an ongoing issue.

“The ability to remove ambient light, using a sophisticated in-built Digital Signal Processor, means that even headlight glare – which can prove problematic in other less capable solutions – does not degrade an image so plate details can still be gathered.

"Another key operational advantage is the ambient scene removal functionality which extracts unnecessary detail from images so speeding up plate finding and improving accuracy. Additionally the IP options preloaded with ANPR software allow analytics to be processed at the camera.”

Both the ANPR and Overview Cameras feature an extruded aluminium housing, are weatherproofed to IP66, and incorporate an integral LED array which is 850nm pulse synchronised with the camera.

The ANPR camera specification includes 18-50mm lens with fixed F1.6 aperture, 1/3-inch sensor, a sensitivity of 0 lux, a resolution of 480 TVL, 850nm IR pass filter and DSP ambient light rejection.

For the Overview Camera key features include 18-50mm F1.6 lens with auto-iris and removable IR cut filter, 1/3-inch sensor, a sensitivity of 1.0/0.15 lux (40 IRE), a resolution of 540 TVL, and shutter speed of 1/1000s.

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