ATE346350T1 - Verfahren zum trennen von zeichen für die erkennung von kraftfahrzeugskennzeichenschildern - Google Patents

Verfahren zum trennen von zeichen für die erkennung von kraftfahrzeugskennzeichenschildern

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Publication number
ATE346350T1
ATE346350T1 AT00307697T AT00307697T ATE346350T1 AT E346350 T1 ATE346350 T1 AT E346350T1 AT 00307697 T AT00307697 T AT 00307697T AT 00307697 T AT00307697 T AT 00307697T AT E346350 T1 ATE346350 T1 AT E346350T1
Authority
AT
Austria
Prior art keywords
license plate
image
suspected
confidence score
regions
Prior art date
Application number
AT00307697T
Other languages
English (en)
Inventor
Jenn-Kwei Tyan
Claus Neubauer
Original Assignee
Siemens Corp Res Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Siemens Corp Res Inc filed Critical Siemens Corp Res Inc
Application granted granted Critical
Publication of ATE346350T1 publication Critical patent/ATE346350T1/de

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Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V30/00—Character recognition; Recognising digital ink; Document-oriented image-based pattern recognition
    • G06V30/10—Character recognition
    • G06V30/14—Image acquisition
    • G06V30/148—Segmentation of character regions
    • G06V30/153—Segmentation of character regions using recognition of characters or words
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V20/00—Scenes; Scene-specific elements
    • G06V20/60—Type of objects
    • G06V20/62—Text, e.g. of license plates, overlay texts or captions on TV images
    • G06V20/625—License plates
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V30/00—Character recognition; Recognising digital ink; Document-oriented image-based pattern recognition
    • G06V30/10—Character recognition

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Theoretical Computer Science (AREA)
  • Character Input (AREA)
  • Character Discrimination (AREA)
  • Devices For Checking Fares Or Tickets At Control Points (AREA)
AT00307697T 1999-09-15 2000-09-07 Verfahren zum trennen von zeichen für die erkennung von kraftfahrzeugskennzeichenschildern ATE346350T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US09/396,952 US6473517B1 (en) 1999-09-15 1999-09-15 Character segmentation method for vehicle license plate recognition

Publications (1)

Publication Number Publication Date
ATE346350T1 true ATE346350T1 (de) 2006-12-15

Family

ID=23569273

Family Applications (1)

Application Number Title Priority Date Filing Date
AT00307697T ATE346350T1 (de) 1999-09-15 2000-09-07 Verfahren zum trennen von zeichen für die erkennung von kraftfahrzeugskennzeichenschildern

Country Status (5)

Country Link
US (1) US6473517B1 (de)
EP (1) EP1085456B1 (de)
AT (1) ATE346350T1 (de)
DE (1) DE60031929T2 (de)
ES (1) ES2275474T3 (de)

Families Citing this family (133)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7230582B1 (en) * 1999-02-12 2007-06-12 Fisher-Rosemount Systems, Inc. Wearable computer in a process control environment
JP3750604B2 (ja) * 1999-06-15 2006-03-01 インフィネオン テクノロギース アーゲー 画像のコントラストを高める方法と回路配置
US6801660B1 (en) 2000-08-22 2004-10-05 Microsoft Corporation Method and system for maintaining alternates in association with recognized words
US6785417B1 (en) 2000-08-22 2004-08-31 Microsoft Corp Method and system for searching for words in ink word documents
US6754386B1 (en) * 2000-08-22 2004-06-22 Microsft Corporation Method and system of matching ink processor and recognizer word breaks
US6836759B1 (en) * 2000-08-22 2004-12-28 Microsoft Corporation Method and system of handling the selection of alternates for recognized words
US6771817B1 (en) 2000-08-22 2004-08-03 Microsoft Corporation Method and system for extending ink word data structures while maintaining version compatibility
US6823084B2 (en) * 2000-09-22 2004-11-23 Sri International Method and apparatus for portably recognizing text in an image sequence of scene imagery
US7738706B2 (en) * 2000-09-22 2010-06-15 Sri International Method and apparatus for recognition of symbols in images of three-dimensional scenes
US7031553B2 (en) * 2000-09-22 2006-04-18 Sri International Method and apparatus for recognizing text in an image sequence of scene imagery
US6714694B1 (en) * 2000-11-27 2004-03-30 Xerox Corporation Method for sliding window image processing of associative operators
US6873732B2 (en) * 2001-07-09 2005-03-29 Xerox Corporation Method and apparatus for resolving perspective distortion in a document image and for calculating line sums in images
US20030113015A1 (en) * 2001-12-18 2003-06-19 Toshiaki Tanaka Method and apparatus for extracting text information from moving image
JP2004005364A (ja) * 2002-04-03 2004-01-08 Fuji Photo Film Co Ltd 類似画像検索システム
US6986106B2 (en) 2002-05-13 2006-01-10 Microsoft Corporation Correction widget
US7379421B1 (en) * 2002-07-23 2008-05-27 At&T Delaware Intellectual Property, Inc. System and method for forwarding messages
US7137076B2 (en) * 2002-07-30 2006-11-14 Microsoft Corporation Correcting recognition results associated with user input
US7382277B2 (en) * 2003-02-12 2008-06-03 Edward D. Ioli Trust System for tracking suspicious vehicular activity
US20040167861A1 (en) * 2003-02-21 2004-08-26 Hedley Jay E. Electronic toll management
EP1463301A1 (de) 2003-03-19 2004-09-29 Thomson Licensing S.A. Verfahren zur Identifizierung von Marken in Videosequenzen
EP1460835B1 (de) * 2003-03-19 2018-11-14 InterDigital Madison Patent Holdings Verfahren zur Identifizierung von Marken in Videosequenzen
JP4189654B2 (ja) * 2003-04-18 2008-12-03 セイコーエプソン株式会社 画像処理装置
US20050084134A1 (en) * 2003-10-17 2005-04-21 Toda Sorin M. License plate recognition
US20060030985A1 (en) * 2003-10-24 2006-02-09 Active Recognition Technologies Inc., Vehicle recognition using multiple metrics
US7848573B2 (en) * 2003-12-03 2010-12-07 Microsoft Corporation Scaled text replacement of ink
US7506271B2 (en) * 2003-12-15 2009-03-17 Microsoft Corporation Multi-modal handwriting recognition correction
TWI231702B (en) * 2004-01-16 2005-04-21 Univ Nat Taiwan Science Tech Segment based image registration method
US7447358B2 (en) * 2004-03-31 2008-11-04 Intel Corporation Image segmentation using branch and bound analysis
FR2872660B1 (fr) * 2004-07-05 2006-12-22 Eastman Kodak Co Appareil de prise de vue et procede pour la formation d'images annotees
IL162878A0 (en) * 2004-07-06 2005-11-20 Hi Tech Solutions Ltd Multi-level neural network based characters identification method and system
US7460711B2 (en) * 2004-08-27 2008-12-02 Avago Technologies Ecbu Ip (Singapore) Pte. Ltd. Efficient method for reading meter values by processing digital images of a meter
US7302098B2 (en) * 2004-12-03 2007-11-27 Motorola, Inc. Character segmentation method and apparatus
US7231288B2 (en) * 2005-03-15 2007-06-12 Visteon Global Technologies, Inc. System to determine distance to a lead vehicle
US8120665B2 (en) * 2005-08-25 2012-02-21 Ricoh Company, Ltd. Image processing method and apparatus, digital camera, and recording medium recording image processing program
US7613328B2 (en) * 2005-09-09 2009-11-03 Honeywell International Inc. Label detection
US20070058856A1 (en) * 2005-09-15 2007-03-15 Honeywell International Inc. Character recoginition in video data
US7382280B2 (en) * 2005-10-17 2008-06-03 Cleverdevices, Inc. Parking violation recording system and method
US20130163823A1 (en) * 2006-04-04 2013-06-27 Cyclops Technologies, Inc. Image Capture and Recognition System Having Real-Time Secure Communication
US20130163822A1 (en) * 2006-04-04 2013-06-27 Cyclops Technologies, Inc. Airborne Image Capture and Recognition System
DE102007012458A1 (de) * 2007-03-15 2008-09-18 Robert Bosch Gmbh Verfahren zur Objektbildung
JP5011508B2 (ja) * 2007-04-27 2012-08-29 日本電産サンキョー株式会社 文字列認識方法及び文字列認識装置
WO2009052578A1 (en) * 2007-10-24 2009-04-30 Sensen Networks Pty Ltd Verification of identification of an image characteristic over multiple images
US8023741B2 (en) 2008-05-23 2011-09-20 Sharp Laboratories Of America, Inc. Methods and systems for detecting numerals in a digital image
US8023770B2 (en) * 2008-05-23 2011-09-20 Sharp Laboratories Of America, Inc. Methods and systems for identifying the orientation of a digital image
KR101035744B1 (ko) * 2008-12-08 2011-05-20 삼성전자주식회사 카메라를 이용한 문자 인식 장치 및 방법
US8306327B2 (en) * 2008-12-30 2012-11-06 International Business Machines Corporation Adaptive partial character recognition
DE102009006829A1 (de) 2009-01-30 2010-08-05 Siemens Aktiengesellschaft Verfahren und System zur Ermittlung von Verkehrsinformation
TWI384408B (zh) * 2009-04-30 2013-02-01 Ind Tech Res Inst 影像辨識以及輸出方法與其系統
TWI381321B (zh) * 2009-04-30 2013-01-01 Ind Tech Res Inst 重組多張影像與辨識方法以及影像擷取與辨識系統
CN101882219B (zh) * 2009-05-08 2013-09-11 财团法人工业技术研究院 图像辨识以及输出方法及其系统
TWI409718B (zh) * 2009-12-04 2013-09-21 Huper Lab Co Ltd 移動中車輛之車牌定位方法
TWI478074B (zh) * 2010-12-01 2015-03-21 Inst Information Industry 文字辨識方法、裝置以及儲存其之電腦可讀取紀錄媒體
KR101727137B1 (ko) * 2010-12-14 2017-04-14 한국전자통신연구원 텍스트 영역의 추출 방법, 추출 장치 및 이를 이용한 번호판 자동 인식 시스템
CN102043959B (zh) * 2010-12-28 2012-09-26 青岛海信网络科技股份有限公司 车牌字符分割方法
US8989446B2 (en) 2011-01-18 2015-03-24 Rtc Vision Ltd. Character recognition in distorted images
US8483440B2 (en) * 2011-04-13 2013-07-09 Xerox Corporation Methods and systems for verifying automatic license plate recognition results
CN102222226B (zh) * 2011-06-21 2013-01-23 杭州电子科技大学 一种基于先验分析的迭代式车牌字符分割方法
US8731244B2 (en) * 2011-07-28 2014-05-20 Xerox Corporation Systems and methods for improving image recognition
DE102011053052B3 (de) * 2011-08-26 2013-02-28 Jenoptik Robot Gmbh Verfahren und Vorrichtung zur Identifikation von Kraftfahrzeugen zur Verkehrsüberwachung
US8644561B2 (en) 2012-01-18 2014-02-04 Xerox Corporation License plate optical character recognition method and system
US9053361B2 (en) 2012-01-26 2015-06-09 Qualcomm Incorporated Identifying regions of text to merge in a natural image or video frame
US9064191B2 (en) 2012-01-26 2015-06-23 Qualcomm Incorporated Lower modifier detection and extraction from devanagari text images to improve OCR performance
EP2645305A3 (de) * 2012-03-26 2014-05-14 Tata Consultancy Services Limited System und Verfahren zum Verarbeiten eines Bildes zum Identifizieren von alfanumerischen Zeichen in einer Serie
US8781172B2 (en) * 2012-03-30 2014-07-15 Xerox Corporation Methods and systems for enhancing the performance of automated license plate recognition applications utilizing multiple results
US8934676B2 (en) 2012-05-04 2015-01-13 Xerox Corporation Robust character segmentation for license plate images
CN102722707A (zh) * 2012-06-11 2012-10-10 复旦大学 基于连通区域和间隙模型的车牌字符分割方法
US9076242B2 (en) 2012-07-19 2015-07-07 Qualcomm Incorporated Automatic correction of skew in natural images and video
US9047540B2 (en) 2012-07-19 2015-06-02 Qualcomm Incorporated Trellis based word decoder with reverse pass
US9014480B2 (en) 2012-07-19 2015-04-21 Qualcomm Incorporated Identifying a maximally stable extremal region (MSER) in an image by skipping comparison of pixels in the region
US9262699B2 (en) 2012-07-19 2016-02-16 Qualcomm Incorporated Method of handling complex variants of words through prefix-tree based decoding for Devanagiri OCR
US9141874B2 (en) 2012-07-19 2015-09-22 Qualcomm Incorporated Feature extraction and use with a probability density function (PDF) divergence metric
CN103065138B (zh) * 2012-12-06 2015-07-15 中通服公众信息产业股份有限公司 一种机动车牌号的识别方法
CN103207998A (zh) * 2012-12-24 2013-07-17 电子科技大学 一种基于支持向量机的车牌字符分割方法
JP6080586B2 (ja) * 2013-02-13 2017-02-15 株式会社ファインデックス 文字認識システム、文字認識プログラム及び文字認識方法
US9122953B2 (en) 2013-04-15 2015-09-01 Xerox Corporation Methods and systems for character segmentation in automated license plate recognition applications
US9002066B2 (en) * 2013-05-06 2015-04-07 Xerox Corporation Methods, systems and processor-readable media for designing a license plate overlay decal having infrared annotation marks
US9082038B2 (en) 2013-05-29 2015-07-14 Xerox Corporation Dram c adjustment of automatic license plate recognition processing based on vehicle class information
US9042647B2 (en) * 2013-06-06 2015-05-26 Xerox Corporation Adaptive character segmentation method and system for automated license plate recognition
CN103530600B (zh) * 2013-06-06 2016-08-24 东软集团股份有限公司 复杂光照下的车牌识别方法及系统
US9530310B2 (en) 2013-11-01 2016-12-27 Xerox Corporation Method and system for detecting and tracking a vehicle of interest utilizing a network of traffic image-capturing units
US9213910B2 (en) 2013-11-06 2015-12-15 Xerox Corporation Reinforcement learning approach to character level segmentation of license plate images
JP6666253B2 (ja) * 2014-01-24 2020-03-13 サノフィ−アベンティス・ドイチュラント・ゲゼルシャフト・ミット・ベシュレンクテル・ハフツング 光学式文字認識（ｏｃｒ）を用いて使用者が設定した用量値を記録および表示するために注射デバイスに取り付けるための補助デバイス
JP5821994B2 (ja) * 2014-04-21 2015-11-24 富士ゼロックス株式会社 画像処理装置、画像形成装置およびプログラム
CN106687992B (zh) * 2014-07-10 2021-01-12 赛诺菲-安万特德国有限公司 用于执行光学字符识别的装置和方法
CN104239878B (zh) * 2014-08-30 2017-05-10 电子科技大学 一种基于概率极值搜索的车牌字符识别方法
CN104268978B (zh) * 2014-09-24 2017-02-15 苏州佳世达光电有限公司 纸钞序号辨识方法
US9460367B2 (en) * 2014-11-26 2016-10-04 Xerox Corporation Method and system for automating an image rejection process
US9400936B2 (en) * 2014-12-11 2016-07-26 Xerox Corporation Methods and systems for vehicle tag number recognition
US9536315B2 (en) 2015-01-13 2017-01-03 Xerox Corporation Annotation free license plate recognition method and system
CN104616009B (zh) * 2015-02-13 2018-05-18 广州广电运通金融电子股份有限公司 一种字符切割识别方法
JP6487255B2 (ja) * 2015-03-31 2019-03-20 日本電産サンキョー株式会社 文字切り出し装置、文字認識装置、および文字切り出し方法
US10235332B2 (en) 2015-04-09 2019-03-19 Veritoll, Llc License plate distributed review systems and methods
US9501707B2 (en) 2015-04-16 2016-11-22 Xerox Corporation Method and system for bootstrapping an OCR engine for license plate recognition
US9418305B1 (en) 2015-04-29 2016-08-16 Xerox Corporation Segmentation free approach to automatic license plate recognition
JP6310155B2 (ja) * 2015-07-17 2018-04-11 楽天株式会社 文字認識装置、文字認識方法及び文字認識プログラム
CN105447487A (zh) * 2015-08-27 2016-03-30 中山大学 一种车牌识别系统的评测方法及系统
US10706330B2 (en) 2015-10-01 2020-07-07 Intellivision Technologies Corp Methods and systems for accurately recognizing vehicle license plates
US11587327B2 (en) 2015-10-01 2023-02-21 Intellivision Technologies Corp Methods and systems for accurately recognizing vehicle license plates
CN105259252B (zh) * 2015-10-15 2018-09-21 浙江大学 超声相控阵检测聚乙烯电熔接头缺陷类型自动识别方法
US9836646B2 (en) * 2015-10-15 2017-12-05 I.R.I.S. Method for identifying a character in a digital image
CN105447457A (zh) * 2015-11-15 2016-03-30 安徽清新互联信息科技有限公司 一种基于自适应特征的车牌字符识别方法
CN105405298B (zh) * 2015-12-24 2018-01-16 浙江宇视科技有限公司 一种车牌标识的识别方法和装置
US10068146B2 (en) 2016-02-25 2018-09-04 Conduent Business Services, Llc Method and system for detection-based segmentation-free license plate recognition
CN107273892B (zh) * 2017-06-12 2020-06-16 北京智芯原动科技有限公司 一种车牌字符分割方法及装置
US10950124B2 (en) 2017-08-22 2021-03-16 Q-Free Netherlands B.V. License plate recognition
CN107704857B (zh) * 2017-09-25 2020-07-24 北京邮电大学 一种端到端的轻量级车牌识别方法及装置
WO2019070300A1 (en) * 2017-10-06 2019-04-11 Google Llc SYSTEMS AND METHODS FOR IMAGE SWITCHING
CN109960978A (zh) * 2017-12-25 2019-07-02 大连楼兰科技股份有限公司 基于图像分层技术的车辆检测系统及装置
GB2571530B (en) * 2018-02-28 2020-09-23 Canon Europa Nv An image processing method and an image processing system
CN110728278A (zh) * 2018-07-16 2020-01-24 杭州海康威视数字技术股份有限公司 车牌识别方法及装置
CN109117822A (zh) * 2018-08-31 2019-01-01 贵州大学 一种基于深度学习的零件实例分割识别方法
CN109165635A (zh) * 2018-09-27 2019-01-08 珠海格力电器股份有限公司 显示屏中光符标记的视觉检测系统及其方法与智能终端
CN109635804A (zh) * 2018-12-06 2019-04-16 北京联合大学 一种基于SIFT和kNN的车牌识别方法及系统
CN111325210B (zh) * 2018-12-14 2024-06-18 北京京东尚科信息技术有限公司 用于输出信息的方法和装置
CN109766805B (zh) * 2018-12-28 2022-12-09 安徽清新互联信息科技有限公司 一种基于深度学习的双层车牌字符识别方法
CN109753914B (zh) * 2018-12-28 2023-05-30 安徽清新互联信息科技有限公司 一种基于深度学习的车牌字符识别方法
CN109815956B (zh) * 2018-12-28 2022-12-09 安徽清新互联信息科技有限公司 一种基于自适应位置分割的车牌字符识别方法
US10616443B1 (en) * 2019-02-11 2020-04-07 Open Text Sa Ulc On-device artificial intelligence systems and methods for document auto-rotation
US11227174B1 (en) 2019-06-10 2022-01-18 James Alves License plate recognition
CN110443251A (zh) * 2019-08-13 2019-11-12 树根互联技术有限公司 仪表图像识别方法及装置
CN110598703B (zh) * 2019-09-24 2022-12-20 深圳大学 一种基于深度神经网络的ocr识别方法及装置
CN111709417B (zh) * 2020-05-28 2023-09-22 西安理工大学 一种矿车车牌识别方法
CN111881741B (zh) * 2020-06-22 2024-06-14 浙江大华技术股份有限公司 车牌识别方法、装置、计算机设备和计算机可读存储介质
US12002274B2 (en) * 2020-08-24 2024-06-04 Electronic Transaction Consultants, Llc Gamified alphanumeric character identification
CN112381088A (zh) * 2020-11-11 2021-02-19 上善智城(苏州)信息科技有限公司 一种油罐车车牌识别方法及系统
CN112733856B (zh) * 2020-12-31 2022-08-09 成都福立盟环保大数据有限公司 一种大型车辆放大车牌的识别方法
CN113516123B (zh) * 2021-05-14 2023-11-24 南京工程学院 一种针对轮胎压印字符的检测识别方法
US11615634B2 (en) * 2021-07-01 2023-03-28 International Business Machines Corporation Character recognition of license plate under complex background
CN114120323A (zh) * 2021-11-05 2022-03-01 北京量子之歌科技有限公司 一种支付账单的管理方法、装置、设备和存储介质
CN114627653B (zh) * 2022-05-12 2022-08-02 浙江电马云车科技有限公司 基于双目识别的5g智能道闸管理系统
CN115082923B (zh) * 2022-08-24 2022-11-08 成都工业学院 一种基于机器视觉的牛奶包装盒生产日期识别方法
CN116109663B (zh) * 2023-04-04 2023-06-23 山东大学第二医院 基于多阈值分割的胃部ct影像分割方法
CN117894009B (zh) * 2024-03-14 2024-05-31 江西交通职业技术学院 一种基于智能视觉的车牌识别系统

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5998283A (ja) * 1982-11-27 1984-06-06 Hitachi Ltd パターン切出しおよび認識方法、ならびにそのシステム
JPS6274181A (ja) * 1985-09-27 1987-04-04 Sony Corp 文字認識装置
EP0446630A3 (en) * 1990-03-12 1993-02-24 International Business Machines Corporation Method and apparatus for segmenting characters in an amount field on a financial document
EP0631683B1 (de) * 1992-03-20 2001-08-01 Commonwealth Scientific And Industrial Research Organisation Gegenstands-überwachungsystem
CA2135240A1 (en) * 1993-12-01 1995-06-02 James F. Frazier Automated license plate locator and reader
JP3805005B2 (ja) * 1994-11-09 2006-08-02 キヤノン株式会社 画像処理装置及び光学的文字認識装置及びそれらの方法
US5799276A (en) * 1995-11-07 1998-08-25 Accent Incorporated Knowledge-based speech recognition system and methods having frame length computed based upon estimated pitch period of vocalic intervals
SG71018A1 (en) * 1997-03-01 2000-03-21 Inst Of Systems Science Nat Un Robust identification code recognition system

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EP1085456B1 (de) 2006-11-22
ES2275474T3 (es) 2007-06-16
DE60031929D1 (de) 2007-01-04
US6473517B1 (en) 2002-10-29
EP1085456A3 (de) 2004-03-03
DE60031929T2 (de) 2007-03-15
EP1085456A2 (de) 2001-03-21

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