Traffic sensor using a color vision method

In order to support intelligent traffic management systems, future traffic sensors will need to provide more traffic variables and more accurate data than provided by the commonly used sensors today. In particular, future systems will need to recognize vehicles from sensor to sensor in order to measure point-to-point traffic variables like travel time. One characteristic that may be used to match vehicles between sensors is color. This work describes a machine vision based traffic sensor under development that uses sophisticated color signatures as a key component.