[1]黄 腾,施鹏飞.非均匀光照下的车牌定位方法[J].智能系统学报,2009,4(5):421-426.[doi:10.3969/j.issn.1673-4785.2009.05.006]
HUANG Teng,SHI Peng-fei.Locating vehicle license plates in a non-uniformly illuminated environment[J].CAAI Transactions on Intelligent Systems,2009,4(5):421-426.[doi:10.3969/j.issn.1673-4785.2009.05.006]
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《智能系统学报》[ISSN 1673-4785/CN 23-1538/TP] 卷:
4
期数:
2009年第5期
页码:
421-426
栏目:
学术论文—机器感知与模式识别
出版日期:
2009-10-25
- Title:
-
Locating vehicle license plates in a non-uniformly illuminated environment
- 文章编号:
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1673-4785(2009)05-0421-06
- 作者:
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黄 腾,施鹏飞
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上海交通大学图像处理与模式识别研究所,上海200240
- Author(s):
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HUANG Teng, SHI Peng-fei
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Institute of Image Processing and Pattern Recognition, Shanghai Jiao Tong University, Shanghai 200240, China
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- 关键词:
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非均匀光照; Bernsen算法; 连通区域; 车牌定位
- Keywords:
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nonuniform illumination; Bernsen algorithm; connected area; license plate location
- 分类号:
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TP391.4
- DOI:
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10.3969/j.issn.1673-4785.2009.05.006
- 文献标志码:
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A
- 摘要:
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针对非均匀光照下车牌的定位问题,提出了一种有效的定位方法.该方法采用改进的Bernsen算法对图像进行二值化,有效地去除了非均匀光照对车牌的干扰,然后通过连通区域对数字串初定位,再按照车牌标准规格精定位.实验结果表明,此方法定位车牌精准有效,准确率达98.3%.
- Abstract:
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An effective method was developed for determining the location of a vehicle’s license plates in an environment with nonuniform illumination. With an improved Bernsen algorithm, binarization of the image was able to significantly reduce the effects of nonuniform illumination. Then, by locating the numerical string within the image, we could locate a plate precisely by aligning the location of the characters according to the standard specifications for plates. Experimental results showed that the method is precise and effective. The rate of correct location was 98.3%.
更新日期/Last Update:
2009-12-29