[1]王洪元,袁春婉,赵 磊.基于先验知识和标记分水岭的车牌定位算法[J].常州大学学报(自然科学版),2010,(03):64-68.
　WAN G Hong- yuan,YU AN Chun- w an,ZHAO Lei.License Plate Location Method Based on Prior Knowledge and Marker- Watershed Algorithm[J].Journal of Changzhou University(Natural Science Edition),2010,(03):64-68.
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基于先验知识和标记分水岭的车牌定位算法()
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常州大学学报(自然科学版)[ISSN:2095-0411/CN:32-1822/N]

卷:
期数:
2010年03期
页码:
64-68
栏目:
出版日期:
2010-09-25

文章信息/Info

Title:
License Plate Location Method Based on Prior Knowledge and Marker- Watershed Algorithm
作者:
王洪元;  袁春婉;  赵 磊
常州大学信息科学与工程学院, 江苏 常州 213164
Author(s):
WAN G Hong- yuan;  YU AN Chun- w an;  ZHAO Lei
School of Information Science and Engineering , Chang zhou University, Changzhou 213164, China
关键词:
车牌定位;  先验知识;  标记分水岭
Keywords:
license plate locat ion;  prior know ledg e;  Marker- Watershed
分类号:
T P 391
文献标志码:
A
摘要:
车牌定位是智能交通系统中的重要组成部分之一, 是实现车牌自动识别系统的关键。针对复杂环境下的车辆图像, 提出 一种基于车牌先验知识和标记分水岭的车牌定位算法来对图像进行定位和分割。该算法首先对灰度图像进行形态学预处理, 然 后使用标记分水岭算法得到车牌候选区域, 最后利用车牌的先验知识来定位车牌区域。实验结果表明, 该方法对干扰字符和复 杂背景具有很好的鲁棒性, 是一种简单、快速、有效的车牌定位算法。
Abstract:
License plate lo cat io n is an important par t o f Intelligent Transportation System ( ITS) . It is considered to be the most crucial step in the Automat ic License Plate Recognitio n ( ALPR) . A license plate location method based on prior know ledg e and Mar ker- Watershed algor ithm is proposed to locate and split the plate r eg ion of vehicle images fr om complicated environment . In this metho d, first ly, mathemat ical morpholog y technique is used to prepr ocess the gray imag es, and then Marker- Watershed algor ithm is used to segment the preprocessed imag es to get candidate regions, last ly, the prior know ledg e is used to locate the accurate location of license plate. Exper imental result s show that this method is simple, quick, ef fective, and ro bust to interfer ence char acters and complicated backg round.

参考文献/References:

[1] 崔屹1 图像处理与分析: 数学形态学方法及应用[M] 1 北 京: 科学出版社, 2000.
[2] Grau V, Mew es Auj, Al can iz M. Im proved w at ers hed t ransform f or medical image segment at ion using prior inf ormati on [J] . IE EE T ransact ion on M edical Im ageing, 2004, 23 ( 4 ) : 447- 458.
[3] Chen Shao- yi , H uang Yu - w en, CH EN Liang- gee. Pridict ive wat ers hed: A fast w at ers hed al gorithm for video [J] . T ech nology, 2003, 13 ( 5) : 453- 461.
[4] 马丽虹, 张宇, 邓建平1 基于形态开闭滤波二值标记和纹理特 征合并的分水岭算法[J] 1 中国图象图形学报, 2003 ( 1 ) : 77- 79.
[5] Vincent L, S oil le P. Watersh eds in digit al spaces: An ef f icient algorithm based on immersion simul at ions [J] . IE EE T rans act ion s on Pat tern An aly sis and M achine Int ell igence, 1991, 13 ( 6) : 583- 5981
[6] Meyer F, Beu cher S. Morphological segm ent ati on [J] . J ou rnal of Visu al Commu nicat ion and Image Repres ent ati on. 1990, 1 ( 1) : 21- 46.
[7] T he MathWorks . Marker- Cont rolled Wat ers hed Segm ent ati on [EB/ OL] .
[2009- 08- 15] . ht tp: Mw ww . mathw orks. cn/ product s / image/ dem os . html ? f ile = / p rodu ct s/ dem os/ shipping/ images / ipexw at ers hed. html .
[8] Crist of oret t i A, Faes L, Ravelli F. Isolat ion of the lef t at rial sur face f rom cardiac mul ti- det ect or CT images based on marker cont roll ed w at ersh ed segmen tat ion [J] . Opt ical Engineering. 2009, 30 ( 1) : 48- 58.

备注/Memo

备注/Memo:
基金项目: 江苏省高校自然科学基金项目资助( 08KJB520002) 作者简介: 王洪元( 1960- ) , 男, 江苏常熟人, 教授。
更新日期/Last Update: 2010-09-25