Computer Engineering and Applications ›› 2010, Vol. 46 ›› Issue (23): 244-248.DOI: 10.3778/j.issn.1002-8331.2010.23.069

• 工程与应用 • Previous Articles    

Improved cascade license plate location method

CHEN Jin,XU Pei-xia   

  1. Department of EEIS,University of Science and Technology of China,Hefei 230027,China
  • Received:2009-01-22 Revised:2009-04-22 Online:2010-08-11 Published:2010-08-11
  • Contact: CHEN Jin


陈 进,徐佩霞   

  1. 中国科学技术大学 电子工程与信息科学系,合肥 230027
  • 通讯作者: 陈 进

Abstract: After finding the formal cascade LP(License Plate) location method can’t be applicable to all the situation,it modifies the compact region extraction method for LP candidates extraction.Keeping the formal method’s real-time character,the method improved the final detection ratio of the License Plate.

Key words: LP Location, cascade framework, LP compact character, Harrlike feature, cascade Adaboost classifier

摘要: 通过深入研究分级车牌定位算法,发现当车牌左右两旁存在复杂竖直边缘干扰时,该算法中的候选车牌生成模块容易造成错误检测。提出了一种改进的候选车牌提取算法,可以去除竖直边缘干扰的影响,进一步提高了分级车牌定位算法的检测率,同时保持了算法的实时性。

关键词: 车牌定位, 分级车牌定位算法, 车牌区域字符紧密性特征, Haarlike特征, 级联Adaboost算法

CLC Number: