To achieve the best license plate recognition results, you need to consider aspects to get a high-quality image, such as view angle, pixels of license plate frame, environment light, and others. Please note that the installation parameters below are not limited, but we strongly recommend following the suggestion below when installing an LPR camera to get the best recognition results.
1. The horizontal width of the license plate image should not be less than 80 pixels.
2. The relative angle between the camera’s vertical viewing angle and the road surface of the driving vehicles should not exceed 30 degrees.
3. The relative angle between the camera’s horizontal viewing angle and the road surface of the driving cars should not exceed 30 degrees.
4. The tilt angle of the license plate should be within +/-7 degrees with the image’s horizontal line.