A method and apparatus for controlling cameras and performing Optical Character Recognition (OCR) of a container code and a chassis code on a containers and a chassis associated with a truck has at least one camera capable of viewing the truck as it passes the camera. When the truck passes the camera, which the camera may determine when it is in a first viewing position, and the truck stops, which may be determined by the camera when it is in a second viewing position, the camera views the truck and determines if it has a chassis and container, and if so, what is the container size. The camera then pans to another viewing position depending on container size, and images a container code. Another camera may determine chassis code.