The invention discloses an automobile data recorder with a license plate identification function and a license plate identification method, and the automobile data recorder comprises a multi-lens camera module which can shoot a dynamic image covering a plurality of visual angles, and then obtains the position of one or more license plates in the image according to the characteristics of the license plates. The method comprises the following steps: judging one or more regions of interest about a license plate in each frame of the dynamic image, setting individual exposure compensation weights of a plurality of regions according to the size and position characteristics of the license plate, and then performing exposure compensation of different degrees on each frame of the dynamic image according to the individual exposure compensation weights of the plurality of regions, and carrying out license plate identification on the license plate image subjected to exposure compensation.
一种具有车牌辨识功能的行车记录仪与车牌辨识方法,其中,行车记录仪包括多镜头的摄像模块,可以拍摄涵盖多个视角的动态影像,接着根据车牌的特征得出影像中一或多个车牌位置,判断动态影像各帧中关于车牌的一或多个感兴趣区域,使能根据车牌的尺寸与位置特征设定多个区域个别的曝光补偿权重,之后根据多个区域个别的曝光补偿权重,对动态影像的各帧进行不同程度的曝光补偿,再对经过曝光补偿的车牌影像进行车牌辨识。
Automobile data recorder with license plate identification function and license plate identification method
具有车牌辨识功能的行车记录仪与车牌辨识方法
2024-12-31
Patent
Electronic Resource
Chinese
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