| 基于局部对称性特征的快速车标定位 |
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| 引用本文： | 肖飞,王运琼,刘丽梅,赵杨.基于局部对称性特征的快速车标定位[J].计算机科学,2010,37(2):298-300. |
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| 作者姓名： | 肖飞 王运琼 刘丽梅 赵杨 |
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| 作者单位： | 云南师范大学计算机科学与信息技术学院,昆明,650092 |
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| 基金项目： | 云南省科技厅基金项目(2007F202M,2008ZC047M)资助 |
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| 摘 要： | 根据车标区域及车体的对称性特征,提出了一种快速的车标定位方法。先通过垂直间隔差分和水平最大局部投影定位出车牌和车灯水平区域后,利用车牌、车灯和车标之间的几何位置和大小约束关系粗定位出车标区域,然后根据局部对称性和差分水平投影对粗定位区域进行二次定位,得到较精确的车标矩形区域。实验结果表明,平均定位准确率为94%,平均定位时间为21ms。
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| 关 键 词： | 车标定位 对称性检测 局部差分投影 |
| 收稿时间： | 2009/4/28 0:00:00 |
| 修稿时间： | 2009/7/18 0:00:00 |
Fast Vehicle-logo Location Based on Local Symmetrical Character |
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| XIAO Fei,WANG Yun-qiong,LIU Li-mei,ZHAO Yang.Fast Vehicle-logo Location Based on Local Symmetrical Character[J].Computer Science,2010,37(2):298-300. |
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| Authors: | XIAO Fei WANG Yun-qiong LIU Li-mei ZHAO Yang |
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| Affiliation: | College of Computer Science and Information Technology/a>;Yunnan Normal University/a>;Kunming 650092/a>;China |
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| Abstract: | A fast method of vehicle logo location was presented,which is based on the symmetrical character in both vehicle body area and vehicle logo area.Firstly,the plate and lamp area was located by vertical interval difference and horizontal maximum local projection,and the rough logo area was given by the restriction of geometric position and size of the vehicle plate,vehicle lamp and vehicle logo area.Secondly,by local symmetrical checking and difference horizontal projection in rough logo area,we got a more ac... |
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| Keywords: | Vehicle logo location Symmetrical checking Local difference projection |
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