ABSTRACT
This chapter describes how optoelectronics can be used for the purpose of vehicle identification, contributing to the success of large intelligent infrastructure projects. Infrared cameras are now a widely adopted and rapidly growing application of optoelectronics used to monitor the movement of people and goods across the road network. Such cameras are frequently located on gantries or bridges above highways. These same systems can also be deployed on post structures and buildings at the side of highways or other suitable roadside locations. Whenever number plate data are routinely captured, it may raise cause, for invasion of privacy concerns. For this reason, suppliers of this technology must adopt robust data privacy approaches and should be encouraged to choose the most stringent criteria for data privacy, data capture, processing, and retention. License plate information can be processed locally or distributed to a central application, where comparisons are made against known vehicles of special interest.
