Road Weather Management Program
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Best Practices for Road Weather Management Version 2.0

Title:

Video Cameras Focus on Visibility

Abstract:

A researcher has developed a technique for automatically measuring visibility with video cameras. The camera is aligned to detect contrasting portions of targets in order to generate a signal indicative of contrast levels. A processor uses the signal to compute visibility. Prototype system is currently installed on northbound Highway 35 near Duluth, Minnesota.

Source(s):

ITS Institute Sensor, Fall 1999 issue

Date: 1999

Author:

University of Minnesota ITS Institute

Keywords:


Environmental Sensor Station (ESS)
Visibility

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