How license plate recognition system in extreme situations

2022-12-29 00:00:00

car park construction level is uneven across the country at present, most of the outdoor entrances and exits, and complicated, and more factors, such as vehicles running form plate large Angle makes the difficulty of license plate recognition, license plate recognition system is how to extreme scenarios in the following implementation of the accuracy of license plate recognition?A,


under bad weather such as mist for fog day degeneration of the camera to obtain the license plate image, restricted and influenced the full play of the utility of the monitor to identify, mainly by adopting the technology of image restoration, image restoration for fog day mainly based on modeling to remove the influence of the fog, it give full consideration to the reason for decline in image quality, fundamentally analysis of image degradation and the relationship between the atmospheric scattering, thereby reducing the real image.

2, dimly lit at night
the condition of the night under the irradiation of vehicle headlamps, license plate recognition cameras captured the image may become a black and a white, this brought difficulty for image recognition, the solution to this problem is usually used intelligent lighting technology, this technology is controlled by intelligent algorithm, guarantee the nighttime and daytime plate best effect;Has a strong inhibition of automatic conversion function.


3, large plate Angle problem license plate recognition system in the parking lot under large Angle is difficult to capture the rectangular plates under the conventional ratio, large Angle of the license plate image deformation is license plate recognition recognized technical difficulties, so for parking lot entrances and exits of large Angle usually adopt the two sides to double cameras to capture their camera installed in the export of large Angle problems or the entrance, when there is a sense of vehicle then come trigger coil, two cameras captured with respectively from two different angles respectively, two cameras to the platform to license plate information, including license plate number, license plate play score, capture panoramic images, license plate close-up pictures, etc., the license information platform based on high score the final processing result.