For high-speed object capture (the vehicle speed on the expressway is generally above 70KM/h), clear capture can be achieved by reducing the speed of the electronic shutter, which is generally adjusted manually. However, the biggest problem with this method is that the illumination is different during the day and at night. Two shutter speeds must be set to adapt to the monitoring during the day and at night.

Wide dynamic function

This is the best way to solve the impact of lights on capturing. Wide Dynamic was first proposed by Panasonic. When the background light is too bright, ordinary cameras can not solve the problem of displaying bright and dark images.

As the most important means to determine the identity of vehicles in the field of intelligent transportation, license plate recognition technology has played a great role in realizing intelligent management of transportation, and has been infiltrated in various work.