Digital cameras monitor traffic

NOVEMBER 7, 2008--To eliminate the drawbacks of traffic loops Aldis has developed GridSmart, a vision-based traffic monitoring and control system using Lumenera's Le575 digital camera. This technology replaces inefficient loop systems and obsolete central control systems with advanced digital camera technology paired with a proprietary and custom built 160-degree lens. One of the major obstacles faced by Aldis in designing this system was ensuring all of the captured images were stable and clear, which is difficult when the camera is mounted above a traffic intersection and subject to movement. Rather than uncompress the prospectively distorted images into real-world coordinates, the image stabilization is performed on the Le575 camera's embedded DaVinci processor. This reduces the processing overhead and allows the other valuable functions supported by the camera to be embedded.

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