SeeWay High Speed Traffic Multi-Lane LPR system

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SeeWay is a sophisticated vision-based License Plate Recognition (LPR) system that identifies and tracks number plates on vehicles traveling at low to high speeds. The system can integrate multiple lanes and multiple cameras per lane on a single standard PC system.

A typical gantry installation of a 2 lane US installation with 3 cameras (on the rear plate side) is shown in the following figure:

The heart of the system is the state of the art cameras, which are magapixel progressive scan B&W cameras that capture and send digital images over the gigabit network.

Vehicle traffic speeds: up to 160KMH (USA) or 200KMH (Europe)
Number of lanes: 1-2 (normal mode)
The camera servers can be remote; the video is transmitted over the network
Typical applications: Traffic surveillance and enforcement systems, average-speed violation systems, security and toll-road installations
Optional color overview camera capture

The following illustration shows a typical configuration of a SeeWay LPR system (for example, for 2-lanes traffic monitoring system).

The application runs as a background Windows application in the PC (shown in the center), and interfaces to a set of camera/illumination units (one for each vehicle) which are interfaced by the Gigabit network. An optional color overview camera is available with a frame grabber interface. The application controls the sensors and controls via an I/O card that is connected thru a terminal block to the inputs and outputs.

The main output of the application is a recognition message, which is easily integrated into a Client application locally or across the network. Our SDK (Software Development Kit) comes with several ready-made Client applications that can be a basis for this integration and custom-built applications. For more details - see SeeLane integration concept

A sample of the main display is shown in the following figure.

SeeWay is based on external triggering sensor such as loop detectors or laser sensors. It can trigger either when:

the vehicle activates the sensor (for front plate detection), or
when the vehicle leaves the detection (for rear plate detection),
or use the special "stereo" mode (which takes in account both the front and rear plate detections).

Another derivative of SeeWay can operate on the basis of a software trigger. This application, SeeRoad, is a single lane LPR system that triggers when the plate is seen entering a detection zone.