WO2019066642A3 - A system and method for detecting license plate - Google Patents

A system and method for detecting license plate Download PDF

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Publication number
WO2019066642A3
WO2019066642A3 PCT/MY2018/050064 MY2018050064W WO2019066642A3 WO 2019066642 A3 WO2019066642 A3 WO 2019066642A3 MY 2018050064 W MY2018050064 W MY 2018050064W WO 2019066642 A3 WO2019066642 A3 WO 2019066642A3
Authority
WO
WIPO (PCT)
Prior art keywords
license plate
filtering
group
masking technique
white pixels
Prior art date
Application number
PCT/MY2018/050064
Other languages
French (fr)
Other versions
WO2019066642A2 (en
Inventor
Hamam MOKAYED
Hock Woon Hon
Yan Chai HUM
Kelvin Lo Yir SIANG
Che Yon CHOO
Original Assignee
Mimos Berhad
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 Mimos Berhad filed Critical Mimos Berhad
Publication of WO2019066642A2 publication Critical patent/WO2019066642A2/en
Publication of WO2019066642A3 publication Critical patent/WO2019066642A3/en

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Classifications

    • 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
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V10/00—Arrangements for image or video recognition or understanding
    • G06V10/20—Image preprocessing
    • G06V10/26—Segmentation of patterns in the image field; Cutting or merging of image elements to establish the pattern region, e.g. clustering-based techniques; Detection of occlusion
    • G06V10/267—Segmentation of patterns in the image field; Cutting or merging of image elements to establish the pattern region, e.g. clustering-based techniques; Detection of occlusion by performing operations on regions, e.g. growing, shrinking or watersheds
    • 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

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Theoretical Computer Science (AREA)
  • Image Processing (AREA)
  • Image Analysis (AREA)

Abstract

The present invention relates to a system and method for detecting license plate. The system (100) comprises a plate detection module (20) configured to detect location of vehicle license plate by filtering noise using multi-masking technique, dynamic dilation and group-based filtering, wherein multi-masking technique generates a plurality of mask images to remove noise; wherein the dynamic dilation enhances white pixels based on strongly connected primary vertical, primary diagonal and secondary diagonal white pixels; and wherein the group-based filtering filters similar blobs based on compactness, ratio and white pixel density rules.
PCT/MY2018/050064 2017-09-29 2018-09-28 A system and method for detecting license plate WO2019066642A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
MYPI2017001430 2017-09-29
MYPI2017001430 2017-09-29

Publications (2)

Publication Number Publication Date
WO2019066642A2 WO2019066642A2 (en) 2019-04-04
WO2019066642A3 true WO2019066642A3 (en) 2019-06-27

Family

ID=65861667

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/MY2018/050064 WO2019066642A2 (en) 2017-09-29 2018-09-28 A system and method for detecting license plate

Country Status (1)

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WO (1) WO2019066642A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110866881B (en) * 2019-11-15 2023-08-04 RealMe重庆移动通信有限公司 Image processing method and device, storage medium and electronic equipment

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130279758A1 (en) * 2012-04-23 2013-10-24 Xerox Corporation Method and system for robust tilt adjustment and cropping of license plate images
WO2017091060A1 (en) * 2015-11-27 2017-06-01 Mimos Berhad A system and method for detecting objects from image

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI409718B (en) 2009-12-04 2013-09-21 Huper Lab Co Ltd Method of locating license plate of moving vehicle
TWI431559B (en) 2010-10-29 2014-03-21 Univ Nat Chiao Tung A vehicle registration-plate detecting method and system thereof

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130279758A1 (en) * 2012-04-23 2013-10-24 Xerox Corporation Method and system for robust tilt adjustment and cropping of license plate images
WO2017091060A1 (en) * 2015-11-27 2017-06-01 Mimos Berhad A system and method for detecting objects from image

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
LORITA ANGELINE ET AL: "Multiple Vehicles License Plate Tracking and Recognition via Isotropic Dilation", COMPUTATIONAL INTELLIGENCE, COMMUNICATION SYSTEMS AND NETWORKS (CICSYN), 2011 THIRD INTERNATIONAL CONFERENCE ON, IEEE, 26 July 2011 (2011-07-26), pages 54 - 59, XP032049300, ISBN: 978-1-4577-0975-3, DOI: 10.1109/CICSYN.2011.24 *
SURYANARAYANA P V ET AL: "A Morphology Based Approach for Car License Plate Extraction", INDICON, 2005 ANNUAL IEEE CHENNAI, INDIA 11-13 DEC. 2005, PISCATAWAY, NJ, USA,IEEE, 11 December 2005 (2005-12-11), pages 24 - 27, XP010890491, ISBN: 978-0-7803-9503-9, DOI: 10.1109/INDCON.2005.1590116 *

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