HK1109256A1 - Line segment detector and line segment detecting method - Google Patents

Line segment detector and line segment detecting method

Info

Publication number
HK1109256A1
HK1109256A1 HK07114086.9A HK07114086A HK1109256A1 HK 1109256 A1 HK1109256 A1 HK 1109256A1 HK 07114086 A HK07114086 A HK 07114086A HK 1109256 A1 HK1109256 A1 HK 1109256A1
Authority
HK
Hong Kong
Prior art keywords
line segment
detecting method
detector
segment detector
segment detecting
Prior art date
Application number
HK07114086.9A
Other languages
English (en)
Inventor
Kouichirou Hirao
Original Assignee
Nec Corp
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 Nec Corp filed Critical Nec Corp
Publication of HK1109256A1 publication Critical patent/HK1109256A1/xx

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/10—Segmentation; Edge detection
    • G06T7/12—Edge-based segmentation
    • 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
    • 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
    • G06V30/20—Combination of acquisition, preprocessing or recognition functions
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/30—Subject of image; Context of image processing
    • G06T2207/30176—Document
    • 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)
  • Theoretical Computer Science (AREA)
  • Multimedia (AREA)
  • Image Analysis (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Image Processing (AREA)
HK07114086.9A 2006-01-11 2007-12-24 Line segment detector and line segment detecting method HK1109256A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2006003718A JP4243614B2 (ja) 2006-01-11 2006-01-11 線分検出器及び線分検出方法

Publications (1)

Publication Number Publication Date
HK1109256A1 true HK1109256A1 (en) 2008-05-30

Family

ID=37888092

Family Applications (1)

Application Number Title Priority Date Filing Date
HK07114086.9A HK1109256A1 (en) 2006-01-11 2007-12-24 Line segment detector and line segment detecting method

Country Status (6)

Country Link
US (1) US7945095B2 (xx)
EP (1) EP1808812B1 (xx)
JP (1) JP4243614B2 (xx)
CN (1) CN101001307B (xx)
CA (1) CA2573629C (xx)
HK (1) HK1109256A1 (xx)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7856142B2 (en) * 2007-01-26 2010-12-21 Sharp Laboratories Of America, Inc. Methods and systems for detecting character content in a digital image
JP5084366B2 (ja) * 2007-06-21 2012-11-28 キヤノン株式会社 撮像装置及び撮像装置の制御方法
JP5724454B2 (ja) * 2011-02-25 2015-05-27 村田機械株式会社 画像処理装置及び画像処理方法
WO2016207875A1 (en) 2015-06-22 2016-12-29 Photomyne Ltd. System and method for detecting objects in an image
KR102087681B1 (ko) 2015-09-17 2020-03-11 삼성전자주식회사 이미지 처리 장치, 이미지 처리 방법 및 컴퓨터 판독가능 기록 매체
US20190033555A1 (en) * 2017-07-28 2019-01-31 Qualcomm Incorporated Phase detection autofocus with diagonal line detection
JP6929823B2 (ja) * 2018-11-16 2021-09-01 株式会社東芝 読取システム、読取方法、プログラム、記憶媒体、及び移動体
CN110889827A (zh) * 2019-11-06 2020-03-17 国网山西省电力公司吕梁供电公司 一种基于视觉的输电线路杆塔在线识别和倾斜检测方法
CN113689447B (zh) * 2020-05-19 2024-08-27 华晨宝马汽车有限公司 用于识别带状固定件的方法、装置、设备和系统

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3100383B2 (ja) 1989-09-06 2000-10-16 株式会社リコー 文字領域分離方法および装置
JPH09139839A (ja) 1995-11-14 1997-05-27 Ricoh Co Ltd 画像処理装置
JPH10336443A (ja) 1997-04-04 1998-12-18 Ricoh Co Ltd デジタル画像読取装置
JP3878401B2 (ja) * 2000-09-14 2007-02-07 シャープ株式会社 画像処理装置、画像処理方法およびそれを記録した記録媒体
JP3785935B2 (ja) * 2001-03-15 2006-06-14 日本電気株式会社 線分検出器
US6922485B2 (en) 2001-12-06 2005-07-26 Nec Corporation Method of image segmentation for object-based image retrieval
KR100449486B1 (ko) * 2001-12-29 2004-09-22 한국전자통신연구원 수직선 인접 그래프를 이용한 문서 인식 시스템 및 방법
US7463770B2 (en) * 2003-07-21 2008-12-09 Lockheed Martin Corporation Methods and systems for detection of repeating patterns of features

Also Published As

Publication number Publication date
CN101001307B (zh) 2011-04-06
CA2573629C (en) 2013-04-16
CN101001307A (zh) 2007-07-18
EP1808812B1 (en) 2018-09-26
CA2573629A1 (en) 2007-07-11
US7945095B2 (en) 2011-05-17
EP1808812A1 (en) 2007-07-18
JP2007189319A (ja) 2007-07-26
JP4243614B2 (ja) 2009-03-25
US20070172128A1 (en) 2007-07-26

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Legal Events

Date Code Title Description
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)

Effective date: 20240111