|本期目录/Table of Contents|

[1]秦实宏,叶云丽.复杂光照下的车牌定位方法[J].武汉工程大学学报,2015,37(11):69-73.[doi:10. 3969/j. issn. 1674-2869. 2015. 11. 014]
 -,-.License plate location in complex lighting conditions[J].Journal of Wuhan Institute of Technology,2015,37(11):69-73.[doi:10. 3969/j. issn. 1674-2869. 2015. 11. 014]
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复杂光照下的车牌定位方法(/HTML)
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《武汉工程大学学报》[ISSN:1674-2869/CN:42-1779/TQ]

卷:
37
期数:
2015年11期
页码:
69-73
栏目:
机电与信息工程
出版日期:
2015-12-30

文章信息/Info

Title:
License plate location in complex lighting conditions
文章编号:
1674-2869(2015)11-0069-05
作者:
秦实宏叶云丽
武汉工程大学电气信息学院,湖北 武汉 430205
Author(s):
QIN Shi-hong YE Yun-li
School of Electronic and Informational Engineering, Wuhan Institute of Technology, Wuhan 430205, China
关键词:
车牌定位HSV边缘检测投影Matlab
Keywords:
license plate location HSV edge detection projection Matlab
分类号:
TN911
DOI:
10. 3969/j. issn. 1674-2869. 2015. 11. 014
文献标志码:
A
摘要:
车牌定位是车牌识别系统的关键,为了提高复杂光照下车牌定位的效率,提出了一种基于车牌图像预处理和纹理边缘特征相结合的车牌定位方法. 在预处理过程中利用HSV颜色空间中亮度和色度相互独立的特性,对图像进行亮度处理,得到了一幅有效去除背景干扰且亮度适度的二值图像;然后采用Canny算子对车牌进行边缘检测,得到大致的车牌区域;最后对车牌分别进行水平和垂直投影,得到精确的车牌区域. 整个过程用Matlab软件实现,结果证明该方法在复杂光照下具有较强的适应性与稳健性,有一定的实用价值.
Abstract:
License plate location is the key part of the license plate recognition system. To improve the efficiency of license plate location in complex lighting conditions, a method based on the pretreatment of license plate image and the features of edge and texture was proposed. In the pretreatment process, the license plate image was brightened by using the features of independence between brightness and color in HSV color space, and a binary image with suitable brightness was obtained after efficiently eliminating the background interference. Then the approximate position of the license plate was got by using Canny edge detection to examine the edges. Finally, the horizontal and vertical projections of license plate were checked respectively, and the precise location of a license plate was obtained. The whole process was realized using Matlab software. The result shows that the method has stronger adaptability and robustness in complex lighting conditions, and it could be used widely.

参考文献/References:

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相似文献/References:

[1]胡 琛,秦实宏*.基于色彩纹理的车牌定位系统设计[J].武汉工程大学学报,2017,39(03):273.[doi:10. 3969/j. issn. 1674?2869. 2017. 03. 012]
 HU Chen,QIN Shihong*.Design of Vehicle License Plate Location System Based on Color Texture[J].Journal of Wuhan Institute of Technology,2017,39(11):273.[doi:10. 3969/j. issn. 1674?2869. 2017. 03. 012]

备注/Memo

备注/Memo:
收稿日期:2015-08-27作者简介:秦实宏(1964-),男,湖北汉川人,博士,教授.研究方向:智能电器袁信息获取与处理.
更新日期/Last Update: 2015-12-13