The invention relates to a license plate recognition method and device, computer equipment and a storage medium. The method comprises the steps that a first image, shot by a first video collection device, of a license plate of a vehicle driving into a pre-shooting range of the first video collection device is acquired; determining a license plate type and a first image aspect ratio according to the first image; obtaining a license plate actual aspect ratio based on the license plate type, and combining the first image aspect ratio to calculate an included angle between a plane where the license plate is located and a focal plane of the first video acquisition device; judging whether the included angle is greater than a first threshold; if yes, sending a first control signal to control the first video acquisition device to adjust the focal plane so as to reduce the included angle; when the included angle is reduced to be smaller than a first threshold value, a second control signal is sent to control the first video acquisition device to shoot a second image of the license plate; and acquiring a second image, and identifying the license plate number in the second image. The method reduces the installation and debugging time, and improves the recognition accuracy of the license plate.
本发明涉及一种车牌识别方法、装置、计算机设备及存储介质,该方法包括:获取第一视频采集装置拍摄的驶入第一视频采集装置预拍摄范围内的车辆的车牌的第一图像;根据第一图像确定车牌类型与第一图像高宽比;基于车牌类型获得车牌实际高宽比,结合第一图像高宽比计算车牌所在平面与第一视频采集装置的焦平面之间的夹角;判断夹角是否大于第一阈值;若是,则发出第一控制信号,以控制第一视频采集装置调整焦平面,以减小夹角;在夹角减小至小于第一阈值时,发出第二控制信号,以控制第一视频采集装置拍摄车牌的第二图像;获取第二图像,并识别第二图像中的车牌号。本方法减少了安装调试的时间,进而提高车牌的识别准确率。
License plate recognition method and device, computer equipment and storage medium
车牌识别方法、装置、计算机设备及存储介质
2024-01-30
Patent
Elektronische Ressource
Chinesisch
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