摘要
提出一种香港车牌识别算法。针对香港车牌格式比较自由的特点,算法中通过合并连通域进行车牌定位,通过搜索连通域的所有可能组合进行车牌切分,并采用彩色图像游程邻接算法(CRAG)对彩色图像搜索连通域,使得时间性能大大提高。实验表明,本算法在图像测试集的平均识别率达到95%以上。
An algorithm for the recognition of vehicle license plate in Hongkong is proposed. There is no fixed format for vehicle license plate in Hongkong. Aiming at this point, the algorithm determines license plate location by combining connected components and segments license plate by searching all possible combination of connected components. Searching connected components in color image is implemented by color run-length adjacency graph algorithm （CRAG）. As a result time performance is greatly improved. Experiment shows that the average correct rate of the algorithm is above 95%.
出处
《电视技术》
北大核心
2007年第B08期140-142,共3页
Video Engineering
关键词
香港车牌
连通域
CRAG算法
组合
彩色图像游程邻接算法
vehicle license plate in Hongkong
connected components
CRAG algorithm
combination
color run-length adjacency graph algorithm
