FR2374780A1 - Dispositif de transformation d'images tramees sous forme vectorielle - Google Patents

Dispositif de transformation d'images tramees sous forme vectorielle

Info

Publication number
FR2374780A1
FR2374780A1 FR7734670A FR7734670A FR2374780A1 FR 2374780 A1 FR2374780 A1 FR 2374780A1 FR 7734670 A FR7734670 A FR 7734670A FR 7734670 A FR7734670 A FR 7734670A FR 2374780 A1 FR2374780 A1 FR 2374780A1
Authority
FR
France
Prior art keywords
line
vector form
transforming
document
processed
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.)
Granted
Application number
FR7734670A
Other languages
English (en)
Other versions
FR2374780B1 (fr
Inventor
John M Evans
Richard H Lovie
Ian D Judd
John F Minshull
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.)
International Business Machines Corp
Original Assignee
International Business Machines 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 International Business Machines Corp filed Critical International Business Machines Corp
Publication of FR2374780A1 publication Critical patent/FR2374780A1/fr
Application granted granted Critical
Publication of FR2374780B1 publication Critical patent/FR2374780B1/fr
Granted legal-status Critical Current

Links

Classifications

    • 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

Landscapes

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

Abstract

Dispositif de transformation sous forme vectorielle de données numériques représentatives d'images tramées provenant d'un document exploré ligne par ligne. Ce dispositif comprend une unité d'analyse 2 pour l'exploration du document 1 ligne par ligne, d'un circuit de suppression de bits 4 pour supprimer des bits de la configuration de bits reçu de l'unité 4 de façon à fournir une configuration de bits traitée représentant des lignes d'un sel pel de large, et un circuit suiveur de ligne 6 pour fournir une liste de vecteurs à partir de la configuration de bits traitée. Un tel dispositif est particulièrement utile pour des documents contenant des informations graphiques tels que des cartes.
FR7734670A 1976-12-20 1977-11-10 Dispositif de transformation d'images tramees sous forme vectorielle Granted FR2374780A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB53036/76A GB1517870A (en) 1976-12-20 1976-12-20 Apparatus for producing vectors from raster scanned data

Publications (2)

Publication Number Publication Date
FR2374780A1 true FR2374780A1 (fr) 1978-07-13
FR2374780B1 FR2374780B1 (fr) 1980-08-22

Family

ID=10466372

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7734670A Granted FR2374780A1 (fr) 1976-12-20 1977-11-10 Dispositif de transformation d'images tramees sous forme vectorielle

Country Status (8)

Country Link
US (1) US4375654A (fr)
JP (1) JPS5394724A (fr)
AU (1) AU511040B2 (fr)
CA (1) CA1089988A (fr)
DE (1) DE2752421A1 (fr)
FR (1) FR2374780A1 (fr)
GB (1) GB1517870A (fr)
IT (1) IT1114672B (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2533041A1 (fr) * 1982-09-13 1984-03-16 Dainippon Screen Mfg Procede de compression des donnees pour une image d'original a deux valeurs
FR2533040A1 (fr) * 1982-09-13 1984-03-16 Dainippon Screen Mfg Procede de compression des donnees

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2938426C2 (de) * 1979-09-22 1984-11-29 Wolfgang Ing.(Grad.) 2370 Rendsburg Ferenz Einrichtung in Leitstellen zur Eingabe von Steuerungsdaten
JPS5856080A (ja) * 1981-09-29 1983-04-02 Fujitsu Ltd 線図形圧縮方式
JPS5881383A (ja) * 1981-11-11 1983-05-16 Dainippon Screen Mfg Co Ltd ２値画像のデ−タ圧縮方法
US4550438A (en) * 1982-06-29 1985-10-29 International Business Machines Corporation Retro-stroke compression and image generation of script and graphic data employing an information processing system
US4620287A (en) * 1983-01-20 1986-10-28 Dicomed Corporation Method and apparatus for representation of a curve of uniform width
FR2540263B1 (fr) * 1983-01-31 1988-05-20 Commissariat Energie Atomique Procede de reconnaissance automatique d'une image a partir d'une image correspondante de reference
US4783829A (en) * 1983-02-23 1988-11-08 Hitachi, Ltd. Pattern recognition apparatus
US4718105A (en) * 1983-03-14 1988-01-05 Ana Tech Corporation Graphic vectorization system
JPS59189469A (ja) * 1983-04-12 1984-10-27 Fujitsu Ltd 線画像のベクトル発生方式
JPS59223846A (ja) * 1983-06-02 1984-12-15 Matsushita Electric Ind Co Ltd 演算処理装置
US4740904A (en) * 1985-11-01 1988-04-26 Nagle John B Line following system and process
US5214718A (en) * 1986-10-06 1993-05-25 Ampex Systems Corporation Scan-in polygonal extraction of video images
JP2840306B2 (ja) * 1989-08-02 1998-12-24 キヤノン株式会社 画像処理装置の領域処理方法
US5473739A (en) * 1989-09-21 1995-12-05 Hsu; Shin-Yi Method of preprocessing a map to produce simplified, digitally-stored data for subsequent processing and restoration of same
JP2790525B2 (ja) * 1990-06-29 1998-08-27 富士通株式会社 直線近似処理装置
JPH0743764B2 (ja) * 1990-08-08 1995-05-15 富士ゼロックス株式会社 線図形折線化処理装置
JP2502175B2 (ja) * 1990-08-18 1996-05-29 富士通株式会社 原画像パタ―ンデ―タ再生方法及び装置
US5267332A (en) * 1991-06-19 1993-11-30 Technibuild Inc. Image recognition system
JPH0766448B2 (ja) * 1991-06-25 1995-07-19 富士ゼロックス株式会社 画像信号分析装置
US5572234A (en) * 1991-09-20 1996-11-05 Intel Corporation Display element density conversion
WO1993021603A1 (fr) * 1992-04-22 1993-10-28 Microsoft Corporation Procede et systeme de transfert d'une image en mode point a l'aide de filets verticaux et horizontaux
JP2918465B2 (ja) * 1994-11-14 1999-07-12 大日本スクリーン製造株式会社 画像処理方法
JP4424845B2 (ja) 1999-12-20 2010-03-03 本田 正 イメージデータ圧縮方法及び復元方法
JP4567799B2 (ja) * 1999-12-20 2010-10-20 本田 正 イメージデータ圧縮方法及び復元方法
JP4237046B2 (ja) * 2003-12-24 2009-03-11 株式会社リコー 画像処理装置
CN117156069B (zh) * 2023-11-01 2024-01-09 南通环典计算机技术有限公司 一种软件图像数据加密传输方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3142818A (en) * 1961-02-21 1964-07-28 Control Data Corp Character recognition using curve tracing
GB1171627A (en) * 1966-10-07 1969-11-26 Post Office Improvements in or relating to Character Recognition Machines
US3987412A (en) * 1975-01-27 1976-10-19 International Business Machines Corporation Method and apparatus for image data compression utilizing boundary following of the exterior and interior borders of objects
US4020463A (en) * 1976-02-27 1977-04-26 Recognition Equipment Incorporated Apparatus and a method for storage and retrieval of image patterns

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2533041A1 (fr) * 1982-09-13 1984-03-16 Dainippon Screen Mfg Procede de compression des donnees pour une image d'original a deux valeurs
FR2533040A1 (fr) * 1982-09-13 1984-03-16 Dainippon Screen Mfg Procede de compression des donnees

Also Published As

Publication number Publication date
GB1517870A (en) 1978-07-12
FR2374780B1 (fr) 1980-08-22
DE2752421A1 (de) 1978-06-22
JPS5394724A (en) 1978-08-19
AU3165977A (en) 1979-06-21
US4375654A (en) 1983-03-01
IT1114672B (it) 1986-01-27
AU511040B2 (en) 1980-07-24
CA1089988A (fr) 1980-11-18

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