DE69232345T2 - Verfahren zur Bestimmung der Neigung eines Schriftzeichen enthaltenden Bildes - Google Patents

Verfahren zur Bestimmung der Neigung eines Schriftzeichen enthaltenden Bildes

Info

Publication number
DE69232345T2
DE69232345T2 DE69232345T DE69232345T DE69232345T2 DE 69232345 T2 DE69232345 T2 DE 69232345T2 DE 69232345 T DE69232345 T DE 69232345T DE 69232345 T DE69232345 T DE 69232345T DE 69232345 T2 DE69232345 T2 DE 69232345T2
Authority
DE
Germany
Prior art keywords
pattern
pixel
coefficient
array
image
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 - Fee Related
Application number
DE69232345T
Other languages
German (de)
English (en)
Other versions
DE69232345D1 (de
Inventor
Seido C O Sharp Corp Kawanaka
Hiroyoshi Naito
Mituo Yoshikawa
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.)
Yozan Inc
Sharp Corp
Original Assignee
Yozan Inc
Sharp 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
Priority claimed from JP3201268A external-priority patent/JP3046654B2/ja
Priority claimed from JP3201247A external-priority patent/JP3046653B2/ja
Priority claimed from JP3201244A external-priority patent/JP3046652B2/ja
Priority claimed from JP3220931A external-priority patent/JP3046656B2/ja
Application filed by Yozan Inc, Sharp Corp filed Critical Yozan Inc
Application granted granted Critical
Publication of DE69232345D1 publication Critical patent/DE69232345D1/de
Publication of DE69232345T2 publication Critical patent/DE69232345T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/70—Determining position or orientation of objects or cameras
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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)
  • Character Input (AREA)
DE69232345T 1991-07-16 1992-07-15 Verfahren zur Bestimmung der Neigung eines Schriftzeichen enthaltenden Bildes Expired - Fee Related DE69232345T2 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP3201268A JP3046654B2 (ja) 1991-07-16 1991-07-16 文字原稿の傾き検出方法
JP3201247A JP3046653B2 (ja) 1991-07-16 1991-07-16 文字原稿の傾き補正方法
JP3201244A JP3046652B2 (ja) 1991-07-16 1991-07-16 文字原稿の傾き補正方法
JP3220931A JP3046656B2 (ja) 1991-08-06 1991-08-06 文字原稿の傾き補正方法

Publications (2)

Publication Number Publication Date
DE69232345D1 DE69232345D1 (de) 2002-02-21
DE69232345T2 true DE69232345T2 (de) 2002-07-04

Family

ID=27476051

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69232345T Expired - Fee Related DE69232345T2 (de) 1991-07-16 1992-07-15 Verfahren zur Bestimmung der Neigung eines Schriftzeichen enthaltenden Bildes

Country Status (3)

Country Link
US (1) US5546479A (enExample)
EP (1) EP0525513B1 (enExample)
DE (1) DE69232345T2 (enExample)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0896129A (ja) * 1994-09-21 1996-04-12 Omron Corp モデル画像登録方法
JP3727971B2 (ja) * 1995-02-01 2005-12-21 キヤノン株式会社 文書処理装置、及び文書処理方法
US6191405B1 (en) 1997-06-06 2001-02-20 Minolta Co., Ltd. Image processing apparatus including image rotator for correcting tilt of the image data
US6718074B1 (en) * 2000-06-02 2004-04-06 Cognex Corporation Method and apparatus for inspection for under-resolved features in digital images
JP4652717B2 (ja) * 2004-04-26 2011-03-16 株式会社ミツトヨ 画像処理装置及び方法並びにプログラム
KR20060050746A (ko) * 2004-08-31 2006-05-19 엘지전자 주식회사 카메라로 촬영된 문서 영상 처리 방법
KR20060050729A (ko) * 2004-08-31 2006-05-19 엘지전자 주식회사 카메라로 촬영된 문서 영상 처리 방법과 장치
US8576924B2 (en) * 2005-01-25 2013-11-05 Advanced Micro Devices, Inc. Piecewise processing of overlap smoothing and in-loop deblocking
US7792385B2 (en) * 2005-01-25 2010-09-07 Globalfoundries Inc. Scratch pad for storing intermediate loop filter data
US7965773B1 (en) 2005-06-30 2011-06-21 Advanced Micro Devices, Inc. Macroblock cache
US7636497B1 (en) * 2005-12-27 2009-12-22 Advanced Micro Devices, Inc. Video rotation in a media acceleration engine
US8139894B2 (en) 2007-12-20 2012-03-20 Intel Corporation Automatic dominant orientation estimation in text images based on steerable filters

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4558461A (en) * 1983-06-17 1985-12-10 Litton Systems, Inc. Text line bounding system
US4866784A (en) * 1987-12-02 1989-09-12 Eastman Kodak Company Skew detector for digital image processing system
JP2829006B2 (ja) * 1988-11-10 1998-11-25 株式会社リコー 画像処理装置
JPH03174684A (ja) * 1989-12-02 1991-07-29 Ezel Inc ナンバープレート認識装置
US5187753A (en) * 1989-12-08 1993-02-16 Xerox Corporation Method and apparatus for identification and correction of document skew
US5191438A (en) * 1989-12-12 1993-03-02 Sharp Kabushiki Kaisha Facsimile device with skew correction and text line direction detection

Also Published As

Publication number Publication date
EP0525513A2 (en) 1993-02-03
US5546479A (en) 1996-08-13
EP0525513A3 (enExample) 1994-08-03
EP0525513B1 (en) 2002-01-16
DE69232345D1 (de) 2002-02-21

Similar Documents

Publication Publication Date Title
DE69226846T2 (de) Verfahren zur Bestimmung von Wortgrenzen im Text
DE19814075B4 (de) Verfahren zum Abtasten und Erkennen mehrerer Fotografien und zum Beseitigen von Randfehlern
DE69725505T2 (de) Bildkombinationsgerät und -verfahren
DE69329380T2 (de) Verfahren zum Segmentieren von Bildern und Klassifizieren von Bildelementen zur Dokumentverarbeitung
DE69621992T2 (de) Anlage und verfahren zur automatischen seitenerfassung und detektion von formularen
DE10317917B4 (de) System und Verfahren zum Umgrenzen und Klassifizieren von Regionen innerhalb einer graphischen Abbildung
DE60129872T2 (de) Verfahren zur Extrahierung von Titeln aus numerischen Bildern
DE19736696C2 (de) Bildverarbeitungsvorrichtung
DE69812882T2 (de) Verfahren zur bewegungskompensierten Mehrhalbbildverbesserung von Videostandbildern
DE69333694T2 (de) Verfahren und Anordnung zur Bildverarbeitung
DE69432585T2 (de) Verfahren und Gerät zur Auswahl von Text und/oder Non-Text-Blöcken in einem gespeicherten Dokument
DE69734855T2 (de) Vorrichtung und Verfahren zur Extraktion eines Objektes in einem Bild
DE102008034304B4 (de) Bildverarbeitungsgerät
DE69715076T2 (de) Vorrichtung zur Erzeugung eines Binärbildes
DE3633743C2 (enExample)
DE69232345T2 (de) Verfahren zur Bestimmung der Neigung eines Schriftzeichen enthaltenden Bildes
DE60311748T2 (de) Verfahren zur Bestimmung von Rändern zwischen Bildbereichen mit verschiedenen Bildmerkmalen
DE69926205T2 (de) Artefaktentfernungstechnik für schiefenkorrigierte bilder
DE69421117T2 (de) Gerät zur Bildinformationsverarbeitung und -wiedergabe
DE69618262T2 (de) Bilderverarbeitungsgerät und -verfahren
DE3716787A1 (de) Zeichenerkennungsverfahren
DE102015205225A1 (de) Verfahren und Vorrichtung zum Erkennen eines Zielobjekts im toten Winkel eines Fahrzeugs
DE4117038C2 (de) Zeilenbereich-Segmentierungsverfahren
DE69925354T2 (de) Bildverarbeitungssystem um vertikale Muster auf abgetasteten Bildern zu reduzieren
DE102007035884A1 (de) Linienrauschunterdrückungsvorrichtung, -verfahren und -programm

Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee