Single-line rule: Mount the camera so that you can draw a horizontal line that crosses both the left and right edge of the license plate in the captured images. See the illustrations below for correct and incorrect angles for recognition.
Vertical angle: The recommended vertical view angle of a camera used for LPR is between 15°-30°.
Horizontal angle: The recommended maximum horizontal view angle of a camera used for LPR is between 15°-25°.
