DE3718620C2 - - Google Patents

Info

Publication number
DE3718620C2
DE3718620C2 DE3718620A DE3718620A DE3718620C2 DE 3718620 C2 DE3718620 C2 DE 3718620C2 DE 3718620 A DE3718620 A DE 3718620A DE 3718620 A DE3718620 A DE 3718620A DE 3718620 C2 DE3718620 C2 DE 3718620C2
Authority
DE
Germany
Prior art keywords
pattern
data
gravity
center
area
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.)
Expired
Application number
DE3718620A
Other languages
German (de)
English (en)
Other versions
DE3718620A1 (de
Inventor
Michiaki Miyagawa
Yutaka Ishizaka
Shoji Kawasaki Kanagawa Jp Shimomura
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.)
Fuji Electric Co Ltd
Original Assignee
Fuji Electric Co Ltd
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 Fuji Electric Co Ltd filed Critical Fuji Electric Co Ltd
Publication of DE3718620A1 publication Critical patent/DE3718620A1/de
Application granted granted Critical
Publication of DE3718620C2 publication Critical patent/DE3718620C2/de
Granted legal-status Critical Current

Links

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
    • G06V30/146—Aligning or centring of the image pick-up or image-field
    • G06V30/1475—Inclination or skew detection or correction of characters or of image to be recognised
    • G06V30/1478—Inclination or skew detection or correction of characters or of image to be recognised of characters or characters lines

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Theoretical Computer Science (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Image Analysis (AREA)
DE19873718620 1986-06-04 1987-06-03 Verfahren und vorrichtung zur ermittlung des drehwinkels eines objektmusters Granted DE3718620A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP61128032A JPH0810132B2 (ja) 1986-06-04 1986-06-04 対象パタ−ンの回転角検出方式

Publications (2)

Publication Number Publication Date
DE3718620A1 DE3718620A1 (de) 1987-12-10
DE3718620C2 true DE3718620C2 (US06272168-20010807-M00014.png) 1989-08-17

Family

ID=14974823

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19873718620 Granted DE3718620A1 (de) 1986-06-04 1987-06-03 Verfahren und vorrichtung zur ermittlung des drehwinkels eines objektmusters

Country Status (3)

Country Link
US (1) US4876732A (US06272168-20010807-M00014.png)
JP (1) JPH0810132B2 (US06272168-20010807-M00014.png)
DE (1) DE3718620A1 (US06272168-20010807-M00014.png)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6483102A (en) * 1987-09-25 1989-03-28 Fuji Electrochemical Co Ltd Method for detecting position of article by visual sensor
JPH01220075A (ja) * 1988-02-29 1989-09-01 Nippon Taisanbin Kogyo Kk 表示部読取方法
ATE179007T1 (de) * 1989-01-25 1999-04-15 Omron Tateisi Electronics Co Bildverarbeitungssystem
US5060276A (en) * 1989-05-31 1991-10-22 At&T Bell Laboratories Technique for object orientation detection using a feed-forward neural network
JPH03223976A (ja) * 1990-01-29 1991-10-02 Ezel Inc 画像照合装置
JPH041869A (ja) * 1990-04-19 1992-01-07 Nippon Sheet Glass Co Ltd 画像照合方法
US5317652A (en) * 1991-06-05 1994-05-31 Phoenix Imaging Rotation and position invariant optical character recognition
US5276742A (en) * 1991-11-19 1994-01-04 Xerox Corporation Rapid detection of page orientation
US6205259B1 (en) * 1992-04-09 2001-03-20 Olympus Optical Co., Ltd. Image processing apparatus
US5594814A (en) * 1992-10-19 1997-01-14 Fast; Bruce B. OCR image preprocessing method for image enhancement of scanned documents
WO1995004977A1 (de) * 1993-08-09 1995-02-16 Siemens Aktiengesellschaft Verfahren zur erkennung der räumlichen lage und drehlage von in geeigneter weise markierten objekten in digitalen bildfolgen
US5850468A (en) * 1995-04-11 1998-12-15 Matsushita Electric Industrial Co., Ltd. Flaw detection apparatus
DE69707291T2 (de) * 1997-11-17 2002-06-27 Datalogic Spa Maxicode-Lokalisierungsverfahren
KR100946888B1 (ko) * 2003-01-30 2010-03-09 삼성전자주식회사 영상화면 내의 피사체의 기울기 보정 장치 및 방법
GB2447073B (en) * 2007-02-28 2012-02-22 Adrian Lynley Ashley Matrix pattern recognition decision making and adaptive learning process
US8457432B2 (en) * 2008-06-25 2013-06-04 Microsoft Corporation High information density of reduced-size images of web pages
CN116168040B (zh) * 2023-04-26 2023-07-07 四川元智谷科技有限公司 元器件的方向检测方法、装置、电子设备及可读存储介质

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH630189A5 (de) * 1977-10-04 1982-05-28 Bbc Brown Boveri & Cie Verfahren und einrichtung zur identifizierung von gegenstaenden.
CH627959A5 (de) * 1977-10-04 1982-02-15 Bbc Brown Boveri & Cie Verfahren und einrichtung zur drehlagebestimmung von gegenstaenden.
US4435837A (en) * 1981-03-05 1984-03-06 President And Fellows Of Harvard College Pattern recognition and orientation system
US4475122A (en) * 1981-11-09 1984-10-02 Tre Semiconductor Equipment Corporation Automatic wafer alignment technique
US4499597A (en) * 1982-03-29 1985-02-12 Hughes Aircraft Company Small-object location utilizing centroid accumulation
EP0147493B1 (fr) * 1983-12-28 1988-09-07 International Business Machines Corporation Procédé et équipement pour l'alignement automatique d'un objet par rapport à une référence
JPS60200385A (ja) * 1984-03-26 1985-10-09 Hitachi Ltd 姿勢判定方式
US4658428A (en) * 1985-07-17 1987-04-14 Honeywell Inc. Image recognition template generation
JPS62267610A (ja) * 1986-05-16 1987-11-20 Fuji Electric Co Ltd 対象パタ−ンの回転角検出方式

Also Published As

Publication number Publication date
US4876732A (en) 1989-10-24
JPS62285004A (ja) 1987-12-10
JPH0810132B2 (ja) 1996-01-31
DE3718620A1 (de) 1987-12-10

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Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
8128 New person/name/address of the agent

Representative=s name: GRUENECKER, A., DIPL.-ING. KINKELDEY, H., DIPL.-IN

D2 Grant after examination
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee