How Does the License Plate Recognition System Recognize the License Plate in Extreme Scenes_ Taigewa

At present, the construction level of parking lots across the country is uneven. Most of them use open-air entrances and exits, the light and shadow situation is complex, and the large angle of license plate formed by vehicle operation makes license plate recognition more difficult. How does the license plate recognition system realize the accurate recognition of license plate in the following extreme scenarios? 1、 The license plate image obtained by the camera in rainy and foggy days such as rain and fog is seriously degraded, which limits and affects the effectiveness of monitoring and recognition. At present, image restoration technology is mainly used. The image restoration in rainy and foggy days is mainly based on modeling to remove the influence of rain and fog. It fully considers the reasons for the decline of image quality and fundamentally analyzes the relationship between image degradation and atmospheric scattering, To restore the real image. 2、 When the light is dim at night, the image obtained by the license plate recognition camera may become black and white at night under the irradiation of the vehicle headlamp, which brings difficulties to the image recognition. To solve this problem, the intelligent fill light technology is usually used. This technology is controlled by intelligent algorithm to ensure the best effect of viewing the license plate at night and during the day; With strong light suppression and automatic conversion function. 3、 The problem of large angle of license plate is that the license plate recognition system is difficult to capture the rectangular license plate in the conventional proportion under the large angle of the parking lot. The license plate imaging deformation caused by the large angle is a recognized technical difficulty of license plate recognition. Therefore, the entrance and exit of the parking lot with large angle are usually captured by two-way and two cameras, The two cameras are respectively installed at the exit or entrance with large angle problems. When a vehicle comes to trigger the ground induction coil, the two cameras will capture the license plate information from two different angles, and the two cameras will report the license plate information to the cloud platform, including vehicle license plate number, license plate scoring value, captured panoramic picture, license plate close-up picture, etc, The platform is the final processing result according to the license plate information with high score.