SG10201904258SA - License plate recognition system and license plate recognition method - Google Patents

License plate recognition system and license plate recognition method

Info

Publication number
SG10201904258SA
SG10201904258SA SG10201904258SA SG10201904258SA SG10201904258SA SG 10201904258S A SG10201904258S A SG 10201904258SA SG 10201904258S A SG10201904258S A SG 10201904258SA SG 10201904258S A SG10201904258S A SG 10201904258SA SG 10201904258S A SG10201904258S A SG 10201904258SA
Authority
SG
Singapore
Prior art keywords
license plate
plate recognition
recognition system
recognition method
license
Prior art date
Application number
SG10201904258SA
Inventor
Shu-Heng Chen
Chih-Lun Liao
Cheng-Feng Shen
Li-Yen Kuo
yu-shuo Liu
Shyh-Jian Tang
Chia-Lung Yeh
Original Assignee
Nat Chung Shan Inst Science & Tech
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 Nat Chung Shan Inst Science & Tech filed Critical Nat Chung Shan Inst Science & Tech
Publication of SG10201904258SA publication Critical patent/SG10201904258SA/en

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/01—Detecting movement of traffic to be counted or controlled
    • G08G1/04—Detecting movement of traffic to be counted or controlled using optical or ultrasonic detectors
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F18/00—Pattern recognition
    • G06F18/20—Analysing
    • G06F18/23—Clustering techniques
    • G06F18/232—Non-hierarchical techniques
    • G06F18/2321—Non-hierarchical techniques using statistics or function optimisation, e.g. modelling of probability density functions
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V10/00—Arrangements for image or video recognition or understanding
    • G06V10/70—Arrangements for image or video recognition or understanding using pattern recognition or machine learning
    • G06V10/82—Arrangements for image or video recognition or understanding using pattern recognition or machine learning using neural networks
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V20/00—Scenes; Scene-specific elements
    • G06V20/50—Context or environment of the image
    • G06V20/52—Surveillance or monitoring of activities, e.g. for recognising suspicious objects
    • G06V20/54—Surveillance or monitoring of activities, e.g. for recognising suspicious objects of traffic, e.g. cars on the road, trains or boats
    • 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
    • G06V20/63—Scene text, e.g. street names
    • 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
    • G06V30/18—Extraction of features or characteristics of the image
    • G06V30/1801—Detecting partial patterns, e.g. edges or contours, or configurations, e.g. loops, corners, strokes or intersections
    • G06V30/18019—Detecting partial patterns, e.g. edges or contours, or configurations, e.g. loops, corners, strokes or intersections by matching or filtering
    • G06V30/18038—Biologically-inspired filters, e.g. difference of Gaussians [DoG], Gabor filters
    • G06V30/18048—Biologically-inspired filters, e.g. difference of Gaussians [DoG], Gabor filters with interaction between the responses of different filters, e.g. cortical complex cells
    • G06V30/18057—Integrating the filters into a hierarchical structure, e.g. convolutional neural networks [CNN]
    • 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
    • G06V30/18—Extraction of features or characteristics of the image
    • G06V30/18086—Extraction of features or characteristics of the image by performing operations within image blocks or by using histograms
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/01—Detecting movement of traffic to be counted or controlled
    • G08G1/017—Detecting movement of traffic to be counted or controlled identifying vehicles
    • G08G1/0175—Detecting movement of traffic to be counted or controlled identifying vehicles by photographing vehicles, e.g. when violating traffic rules
    • 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
    • G06V2201/00—Indexing scheme relating to image or video recognition or understanding
    • G06V2201/08—Detecting or categorising vehicles
    • 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)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Multimedia (AREA)
  • Evolutionary Computation (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Artificial Intelligence (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Data Mining & Analysis (AREA)
  • Computing Systems (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Biomedical Technology (AREA)
  • Databases & Information Systems (AREA)
  • Medical Informatics (AREA)
  • Software Systems (AREA)
  • Molecular Biology (AREA)
  • Probability & Statistics with Applications (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Bioinformatics & Computational Biology (AREA)
  • Evolutionary Biology (AREA)
  • General Engineering & Computer Science (AREA)
  • Image Analysis (AREA)
  • Traffic Control Systems (AREA)
  • Character Discrimination (AREA)
  • Image Processing (AREA)
SG10201904258SA 2018-09-19 2019-05-13 License plate recognition system and license plate recognition method SG10201904258SA (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW107133286A TWI677826B (en) 2018-09-19 2018-09-19 License plate recognition system and method

Publications (1)

Publication Number Publication Date
SG10201904258SA true SG10201904258SA (en) 2020-04-29

Family

ID=69188961

Family Applications (1)

Application Number Title Priority Date Filing Date
SG10201904258SA SG10201904258SA (en) 2018-09-19 2019-05-13 License plate recognition system and license plate recognition method

Country Status (4)

Country Link
US (1) US10777076B2 (en)
PH (1) PH12019000027A1 (en)
SG (1) SG10201904258SA (en)
TW (1) TWI677826B (en)

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CN107704857B (en) * 2017-09-25 2020-07-24 北京邮电大学 End-to-end lightweight license plate recognition method and device
CN111695561A (en) * 2020-05-25 2020-09-22 南京博雅集智智能技术有限公司 License plate detection and correction recognition method and recognition system based on SSD
CN113807344A (en) * 2020-06-11 2021-12-17 济南市公安局交通警察支队 Identification method of license plate of muck vehicle and implementation system thereof
CN111832568B (en) * 2020-06-12 2024-01-12 北京百度网讯科技有限公司 License plate recognition method, training method and device of license plate recognition model
CN111797713A (en) * 2020-06-16 2020-10-20 浙江大华技术股份有限公司 License plate recognition method and photographing device
CN112329756A (en) * 2020-09-25 2021-02-05 武汉光谷信息技术股份有限公司 Method and device for extracting seal and recognizing characters
CN112149620A (en) * 2020-10-14 2020-12-29 南昌慧亦臣科技有限公司 Method for constructing natural scene character region detection model based on no anchor point
CN112232351B (en) * 2020-11-09 2023-10-10 浙江工业职业技术学院 License plate recognition system based on deep neural network
CN112329776B (en) * 2020-12-03 2023-10-27 北京智芯原动科技有限公司 License plate detection method and device based on improved CenterNet network
CN112791989B (en) * 2021-03-29 2021-07-13 常州三点零智能制造有限公司 Automatic license plate detection method and device
CN112861845A (en) * 2021-04-23 2021-05-28 北京欣博电子科技有限公司 License plate recognition method and device, computer equipment and storage medium
CN113723422B (en) * 2021-09-08 2023-10-17 重庆紫光华山智安科技有限公司 License plate information determining method, system, equipment and medium
CN115049895B (en) * 2022-06-15 2024-01-05 北京百度网讯科技有限公司 Image attribute identification method, attribute identification model training method and device
CN115410184A (en) * 2022-08-24 2022-11-29 江西山水光电科技股份有限公司 Target detection license plate recognition method based on deep neural network
CN116819540A (en) * 2023-05-09 2023-09-29 南京俊禄科技有限公司 Method for intelligently calculating type and depth of fishing group
CN116977949A (en) * 2023-08-24 2023-10-31 北京唯行科技有限公司 Vehicle parking inspection method, device and equipment

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US6433706B1 (en) * 2000-12-26 2002-08-13 Anderson, Iii Philip M. License plate surveillance system
TWI236638B (en) * 2004-03-24 2005-07-21 Univ Chung Yuan Christian Multiple recognition system and method for license plates
US7492946B2 (en) * 2004-05-24 2009-02-17 Michael James Elder System, method and computer program for an integrated digital workflow for processing a paper form
TW200731144A (en) * 2006-02-10 2007-08-16 Univ Chung Yuan Christian License plate recognition method and system for moving vehicles
US10645344B2 (en) * 2010-09-10 2020-05-05 Avigilion Analytics Corporation Video system with intelligent visual display
TWI431559B (en) * 2010-10-29 2014-03-21 Univ Nat Chiao Tung A vehicle registration-plate detecting method and system thereof
US9760789B2 (en) * 2012-04-17 2017-09-12 Conduent Business Services, Llc Robust cropping of license plate images
TWI497422B (en) * 2012-12-25 2015-08-21 Univ Nat Chiao Tung A system and method for recognizing license plate image
TW201520905A (en) * 2013-11-28 2015-06-01 Nat Univ Chin Yi Technology Method and apparatus for recognizing character from character image
TWI603268B (en) * 2015-01-23 2017-10-21 國立中興大學 Image processing system and method for license plate recognition
CN104809443B (en) * 2015-05-05 2018-12-28 上海交通大学 Detection method of license plate and system based on convolutional neural networks
WO2016197381A1 (en) * 2015-06-12 2016-12-15 Sensetime Group Limited Methods and apparatus for recognizing text in an image
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TWI607387B (en) * 2016-11-25 2017-12-01 財團法人工業技術研究院 Character recognition systems and character recognition methods thereof
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Also Published As

Publication number Publication date
TW202013252A (en) 2020-04-01
PH12019000027A1 (en) 2020-03-30
US10777076B2 (en) 2020-09-15
TWI677826B (en) 2019-11-21
US20200090506A1 (en) 2020-03-19

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