DE102013207484B4 - Nummernschildzeichensegmentierung unter Verwendung von Wahrscheinlichkeitsmaximierung - Google Patents

Nummernschildzeichensegmentierung unter Verwendung von Wahrscheinlichkeitsmaximierung Download PDF

Info

Publication number
DE102013207484B4
DE102013207484B4 DE102013207484.0A DE102013207484A DE102013207484B4 DE 102013207484 B4 DE102013207484 B4 DE 102013207484B4 DE 102013207484 A DE102013207484 A DE 102013207484A DE 102013207484 B4 DE102013207484 B4 DE 102013207484B4
Authority
DE
Germany
Prior art keywords
license plate
model
characters
region
character
Prior art date
Legal status (The legal status 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 status listed.)
Active
Application number
DE102013207484.0A
Other languages
German (de)
English (en)
Other versions
DE102013207484A1 (de
Inventor
Zhigang Fan
Yonghui Zhao
Aaron Michael Burry
Vladimir Kozitsky
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Conduent Business Services LLC
Original Assignee
Conduent Business Services LLC
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.)
Filing date
Publication date
Application filed by Conduent Business Services LLC filed Critical Conduent Business Services LLC
Publication of DE102013207484A1 publication Critical patent/DE102013207484A1/de
Application granted granted Critical
Publication of DE102013207484B4 publication Critical patent/DE102013207484B4/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G06V20/63—Scene text, e.g. street names
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Theoretical Computer Science (AREA)
  • Character Input (AREA)
  • Traffic Control Systems (AREA)
  • Image Analysis (AREA)
DE102013207484.0A 2012-05-04 2013-04-24 Nummernschildzeichensegmentierung unter Verwendung von Wahrscheinlichkeitsmaximierung Active DE102013207484B4 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US13/464,357 US9014432B2 (en) 2012-05-04 2012-05-04 License plate character segmentation using likelihood maximization
US13/464,357 2012-05-04

Publications (2)

Publication Number Publication Date
DE102013207484A1 DE102013207484A1 (de) 2013-11-07
DE102013207484B4 true DE102013207484B4 (de) 2025-04-24

Family

ID=49384620

Family Applications (1)

Application Number Title Priority Date Filing Date
DE102013207484.0A Active DE102013207484B4 (de) 2012-05-04 2013-04-24 Nummernschildzeichensegmentierung unter Verwendung von Wahrscheinlichkeitsmaximierung

Country Status (3)

Country Link
US (1) US9014432B2 (OSRAM)
JP (1) JP6062791B2 (OSRAM)
DE (1) DE102013207484B4 (OSRAM)

Families Citing this family (65)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2780889A1 (en) * 2011-11-14 2014-09-24 Université du Sud Toulon-Var Method for segmenting a source image
US8855375B2 (en) 2012-01-12 2014-10-07 Kofax, Inc. Systems and methods for mobile image capture and processing
US10146795B2 (en) 2012-01-12 2018-12-04 Kofax, Inc. Systems and methods for mobile image capture and processing
US9292759B2 (en) 2012-05-07 2016-03-22 Xerox Corporation Methods and systems for optimized parameter selection in automated license plate recognition
US9208550B2 (en) * 2012-08-15 2015-12-08 Fuji Xerox Co., Ltd. Smart document capture based on estimated scanned-image quality
US10127636B2 (en) 2013-09-27 2018-11-13 Kofax, Inc. Content-based detection and three dimensional geometric reconstruction of objects in image and video data
US9213910B2 (en) 2013-11-06 2015-12-15 Xerox Corporation Reinforcement learning approach to character level segmentation of license plate images
US9818154B1 (en) 2014-06-27 2017-11-14 Blinker, Inc. System and method for electronic processing of vehicle transactions based on image detection of vehicle license plate
US10733471B1 (en) 2014-06-27 2020-08-04 Blinker, Inc. Method and apparatus for receiving recall information from an image
US9607236B1 (en) 2014-06-27 2017-03-28 Blinker, Inc. Method and apparatus for providing loan verification from an image
US9773184B1 (en) 2014-06-27 2017-09-26 Blinker, Inc. Method and apparatus for receiving a broadcast radio service offer from an image
US9589201B1 (en) 2014-06-27 2017-03-07 Blinker, Inc. Method and apparatus for recovering a vehicle value from an image
US9558419B1 (en) 2014-06-27 2017-01-31 Blinker, Inc. Method and apparatus for receiving a location of a vehicle service center from an image
US10579892B1 (en) 2014-06-27 2020-03-03 Blinker, Inc. Method and apparatus for recovering license plate information from an image
US9589202B1 (en) 2014-06-27 2017-03-07 Blinker, Inc. Method and apparatus for receiving an insurance quote from an image
US9760776B1 (en) 2014-06-27 2017-09-12 Blinker, Inc. Method and apparatus for obtaining a vehicle history report from an image
US10572758B1 (en) 2014-06-27 2020-02-25 Blinker, Inc. Method and apparatus for receiving a financing offer from an image
US10515285B2 (en) 2014-06-27 2019-12-24 Blinker, Inc. Method and apparatus for blocking information from an image
US9892337B1 (en) 2014-06-27 2018-02-13 Blinker, Inc. Method and apparatus for receiving a refinancing offer from an image
US9779318B1 (en) 2014-06-27 2017-10-03 Blinker, Inc. Method and apparatus for verifying vehicle ownership from an image
US9600733B1 (en) 2014-06-27 2017-03-21 Blinker, Inc. Method and apparatus for receiving car parts data from an image
US10540564B2 (en) 2014-06-27 2020-01-21 Blinker, Inc. Method and apparatus for identifying vehicle information from an image
US10867327B1 (en) 2014-06-27 2020-12-15 Blinker, Inc. System and method for electronic processing of vehicle transactions based on image detection of vehicle license plate
US9594971B1 (en) 2014-06-27 2017-03-14 Blinker, Inc. Method and apparatus for receiving listings of similar vehicles from an image
US9754171B1 (en) 2014-06-27 2017-09-05 Blinker, Inc. Method and apparatus for receiving vehicle information from an image and posting the vehicle information to a website
US9563814B1 (en) 2014-06-27 2017-02-07 Blinker, Inc. Method and apparatus for recovering a vehicle identification number from an image
US9384391B2 (en) 2014-10-03 2016-07-05 Xerox Corporation Methods and systems for processing documents
US9760788B2 (en) 2014-10-30 2017-09-12 Kofax, Inc. Mobile document detection and orientation based on reference object characteristics
KR102349059B1 (ko) * 2014-11-07 2022-01-10 삼성전자주식회사 영상의 관심영역으로부터 랜드마크를 결정하는 장치 및 방법
CN105678207A (zh) * 2014-11-19 2016-06-15 富士通株式会社 用于从给定图像中识别目标铭板图像的内容的装置和方法
US9405985B1 (en) 2015-03-17 2016-08-02 Xerox Corporation Leveraging character-by-character image classifiers to improve license plate state identification
CN104834937B (zh) * 2015-04-28 2018-07-17 安徽清新互联信息科技有限公司 一种基于Bayes的车牌颜色判断方法
US9418305B1 (en) * 2015-04-29 2016-08-16 Xerox Corporation Segmentation free approach to automatic license plate recognition
KR101648701B1 (ko) * 2015-06-26 2016-08-17 렉스젠(주) 차량 번호 판독 장치 및 그 방법
US10467465B2 (en) 2015-07-20 2019-11-05 Kofax, Inc. Range and/or polarity-based thresholding for improved data extraction
US10242285B2 (en) * 2015-07-20 2019-03-26 Kofax, Inc. Iterative recognition-guided thresholding and data extraction
WO2017088478A1 (zh) * 2015-11-24 2017-06-01 乐视控股（北京）有限公司 数字分离方法及装置
CN105575126A (zh) * 2015-12-16 2016-05-11 深圳市捷顺科技实业股份有限公司 一种车牌识别系统与方法
US10235585B2 (en) 2016-04-11 2019-03-19 The Nielsen Company (US) Methods and apparatus to determine the dimensions of a region of interest of a target object from an image using target object landmarks
CN108877229A (zh) * 2017-05-09 2018-11-23 深圳市赛菲姆科技有限公司 一种实现脱机收费的车牌识别摄像机及方法
CN109697386B (zh) * 2017-10-23 2020-07-17 杭州海康威视数字技术股份有限公司 一种车牌识别方法、装置及电子设备
US11062176B2 (en) 2017-11-30 2021-07-13 Kofax, Inc. Object detection and image cropping using a multi-detector approach
WO2019140434A2 (en) * 2018-01-15 2019-07-18 President And Fellows Of Harvard College Overlapping pattern differentiation at low signal-to-noise ratio
US11030466B2 (en) 2018-02-11 2021-06-08 Nortek Security & Control Llc License plate detection and recognition system
CN110276342B (zh) * 2018-03-14 2023-04-18 台达电子工业股份有限公司 车牌辨识方法以及其系统
CN109492645A (zh) * 2018-11-01 2019-03-19 湖南文理学院 一种车牌字符分割方法和装置
US12182703B2 (en) 2019-03-28 2024-12-31 Nielsen Consumer Llc Methods and apparatus to detect a text region of interest in a digital image using machine-based analysis
US11410446B2 (en) 2019-11-22 2022-08-09 Nielsen Consumer Llc Methods, systems, apparatus and articles of manufacture for receipt decoding
US11810380B2 (en) 2020-06-30 2023-11-07 Nielsen Consumer Llc Methods and apparatus to decode documents based on images using artificial intelligence
EP3933692A1 (en) * 2020-07-03 2022-01-05 Robert Bosch GmbH An image classifier comprising a non-injective transformation
US20220114821A1 (en) 2020-07-17 2022-04-14 Nielsen Consumer Llc Methods, systems, articles of manufacture and apparatus to categorize image text
CN112504140B (zh) * 2020-11-20 2022-10-04 上海电科智能系统股份有限公司 基于俯视深度相机的物体探测方法
CN113392839B (zh) * 2021-05-18 2023-07-28 浙江大华技术股份有限公司 非机动车车牌识别方法、装置、计算机设备和存储介质
US11822216B2 (en) 2021-06-11 2023-11-21 Nielsen Consumer Llc Methods, systems, apparatus, and articles of manufacture for document scanning
CN113313115B (zh) * 2021-06-11 2023-08-04 浙江商汤科技开发有限公司 车牌属性识别方法及装置、电子设备和存储介质
US12229741B2 (en) 2021-06-24 2025-02-18 Nielsen Consumer Llc Methods, systems, articles of manufacture, and apparatus for decoding purchase data using an image
US12327425B2 (en) 2021-06-24 2025-06-10 Nielsen Consumer Llc Methods, systems, articles of manufacture, and apparatus for decoding purchase data using an image
US11625930B2 (en) 2021-06-30 2023-04-11 Nielsen Consumer Llc Methods, systems, articles of manufacture and apparatus to decode receipts based on neural graph architecture
US12175782B2 (en) 2021-07-12 2024-12-24 Nielsen Consumer Llc Methods, systems, articles of manufacture and apparatus to label text on images
US12288405B2 (en) 2021-12-22 2025-04-29 Nielsen Consumer Llc Methods, systems, articles of manufacture and apparatus to extract region of interest text from receipts
US12229805B2 (en) 2021-12-30 2025-02-18 Nielsen Consumer Llc Methods, systems, articles of manufacture, and apparatus for processing an image using visual and textual information
US12315283B2 (en) 2022-01-14 2025-05-27 Nielsen Consumer Llc Methods, systems, articles of manufacture, and apparatus for decoding images
US12322195B2 (en) 2022-07-06 2025-06-03 Nielsen Consumer Llc Methods, systems, articles of manufacture, and apparatus to determine related content in a document
CN115187977A (zh) * 2022-07-15 2022-10-14 苏州清研精准汽车科技有限公司 一种车牌数据集动态创建方法及系统、电子设备
CN119107257B (zh) * 2024-08-08 2025-06-17 北京卓视智通科技有限责任公司 一种残缺车牌图像的恢复方法、系统、设备及介质

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2893814B2 (ja) * 1990-03-15 1999-05-24 住友電気工業株式会社 車番自動読取装置におけるプレート切出し装置
JPH0520497A (ja) * 1991-07-16 1993-01-29 Matsushita Electric Ind Co Ltd ナンバープレート文字切り出し装置
SG71018A1 (en) * 1997-03-01 2000-03-21 Inst Of Systems Science Nat Un Robust identification code recognition system
JP2002342880A (ja) * 2001-05-18 2002-11-29 Hitachi Eng Co Ltd 車番認識装置
JP2005322146A (ja) * 2004-05-11 2005-11-17 Mitsubishi Electric Corp ナンバープレート読取装置
JP4587038B2 (ja) * 2005-05-25 2010-11-24 住友電気工業株式会社 車両位置検出方法、並びに車両速度検出方法及び装置
US20070058856A1 (en) * 2005-09-15 2007-03-15 Honeywell International Inc. Character recoginition in video data

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
GIANNOUKOS, Ioannis, et al. Operator context scanning to support high segmentation rates for real time license plate recognition. Pattern Recognition, 2010, 43. Jg., Nr. 11, S. 3866-3878 *
JIAO, Jianbin; YE, Qixiang; HUANG, Qingming. A configurable method for multi-style license plate recognition. Pattern Recognition, 2009, 42. Jg., Nr. 3, S. 358-369 *

Also Published As

Publication number Publication date
JP2013235577A (ja) 2013-11-21
US20130294652A1 (en) 2013-11-07
JP6062791B2 (ja) 2017-01-18
US9014432B2 (en) 2015-04-21
DE102013207484A1 (de) 2013-11-07

Similar Documents

Publication Publication Date Title
DE102013207484B4 (de) Nummernschildzeichensegmentierung unter Verwendung von Wahrscheinlichkeitsmaximierung
DE102014214448B4 (de) Vorrichtung und Verfahren zur Erkennung eines Verkehrszeichens
Von Gioi et al. LSD: A fast line segment detector with a false detection control
DE60030377T2 (de) Kennzeichenschilderkennung mit einer intelligenten Kamera
DE69225128T2 (de) Verfahren zur Aufbereitung von sich berührendem und degradiertem Text
EP2467828B1 (de) Verfahren und system zur automatischen objekterkennung und anschliessenden objektverfolgung nach massgabe der objektform
DE102006057552B4 (de) System und Verfahren zur Messung des Abstands eines vorausfahrenden Fahrzeugs
DE102007035884B4 (de) Linienrauschunterdrückungsvorrichtung, -verfahren und -programm
DE102017220307B4 (de) Vorrichtung und Verfahren zum Erkennen von Verkehrszeichen
DE102006012914B4 (de) System und Verfahren zur Bestimmung des Abstands zu einem vorausfahrenden Fahrzeug
DE102013206009A1 (de) Robustes Zuschneiden von Nummernschildbildern
DE112016005059T5 (de) Unterkategorienbewusste faltende neuronale Netzwerke zur Objekterfassung
DE102012212091A1 (de) Systeme und Verfahren zum Verbessern der Bilderkennung
CN105303153A (zh) 一种车辆车牌识别方法及装置
DE112020005223T5 (de) Objektverfolgungseinrichtung und Objektverfolgungsverfahren
Ingole et al. Characters feature based Indian vehicle license plate detection and recognition
DE69820578T2 (de) Verfahren und Mittel um Dokumente zu Vergleichen auf der Basis des räumlichen Layouts
EP2549408A1 (de) Verfahren zur Detektion und Klassifikation von Objekten
DE102019115224A1 (de) System und verfahren zum auffinden und klassifizieren von linien in einem bild mittels eines schichtsystems
DE102019132012B4 (de) Verfahren und System zur Detektion von kleinen unklassifizierten Hindernissen auf einer Straßenoberfläche
CN107301421A (zh) 车辆颜色的识别方法及装置
TWI498830B (zh) 不均勻光線下的車牌辨識方法及系統
EP3259703B1 (de) Mobilgerät zum erfassen eines textbereiches auf einem identifikationsdokument
EP3158543A1 (de) Verfahren zum detektieren eines blickwinkelabhängigen merkmals eines dokumentes
DE202022106314U1 (de) Ein Kantenerkennungssystem, das die fraktale Dimension auf der Grundlage der differentiellen Boxenzählung nutzt

Legal Events

Date Code Title Description
R082 Change of representative

Representative=s name: GRUENECKER, KINKELDEY, STOCKMAIR & SCHWANHAEUS, DE

Representative=s name: GRUENECKER PATENT- UND RECHTSANWAELTE PARTG MB, DE

R081 Change of applicant/patentee

Owner name: CONDUENT BUSINESS SERVICES, LLC (N.D.GES.D. ST, US

Free format text: FORMER OWNER: XEROX CORP., NORWALK, CONN., US

R082 Change of representative

Representative=s name: GRUENECKER, KINKELDEY, STOCKMAIR & SCHWANHAEUS, DE

Representative=s name: GRUENECKER PATENT- UND RECHTSANWAELTE PARTG MB, DE

R012 Request for examination validly filed
R081 Change of applicant/patentee

Owner name: CONDUENT BUSINESS SERVICES, LLC, FLORHAM PARK, US

Free format text: FORMER OWNER: XEROX CORPORATION, NORWALK, CONN., US

Owner name: CONDUENT BUSINESS SERVICES, LLC (N.D.GES.D. ST, US

Free format text: FORMER OWNER: XEROX CORPORATION, NORWALK, CONN., US

R082 Change of representative

Representative=s name: GRUENECKER PATENT- UND RECHTSANWAELTE PARTG MB, DE

R081 Change of applicant/patentee

Owner name: CONDUENT BUSINESS SERVICES, LLC, FLORHAM PARK, US

Free format text: FORMER OWNER: CONDUENT BUSINESS SERVICES, LLC (N.D.GES.D. STAATES DELAWARE), DALLAS, TEX., US

R082 Change of representative

Representative=s name: GRUENECKER PATENT- UND RECHTSANWAELTE PARTG MB, DE

R079 Amendment of ipc main class

Free format text: PREVIOUS MAIN CLASS: G06K0009620000

Ipc: G06V0030190000

R016 Response to examination communication
R018 Grant decision by examination section/examining division