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《Acta Photonica Sinica》 2007-01
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An Approach to Locate Multi-license Plates in Complex Vehicle Images

ZHANG Bian-lian1,2,TANG Hui-jun1,YAN Min-qi1,2(1 Xi′an Institute of Optics and Precision Mechanics of CAS,Xi′an 710068,China)(2 Graduate School of Chinese Academy of Sciences,Beijing 100039,China)  
A new method is presented in this paper for locating license plates in complex background.Edge detection.Component connectivity analysis and slant correction etc manifold methods are adopted to resolve the problem of locating license plate in complex background.The capability of accurately location license plate in complex background of this method is proved by experiments.Result also shows that the method is insensitive to weather,illumination variation,motion and rotation of the license plate,and the rotation corner,character orientation etc informations are provided for the after work.
【CateGory Index】: TP391.41
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