GB2203613B - Image processing apparatus - Google Patents

Image processing apparatus

Info

Publication number: GB2203613B
Authority: GB; United Kingdom
Prior art keywords: processing apparatus; image processing; image; processing
Prior art date: 1987-04-06
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 - Lifetime

Application number

GB8807783A

Other versions

GB2203613A (en

GB8807783D0 (en

Inventor

Ken Onodera

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.)

Canon Inc

Original Assignee

Canon Inc

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.)

1987-04-06

Filing date

1988-03-31

Publication date

1992-01-02

1987-04-06 Priority claimed from JP62083007A external-priority patent/JPS63249193A/en

1987-04-06 Priority claimed from JP62083008A external-priority patent/JPH081553B2/en

1988-03-31 Application filed by Canon Inc filed Critical Canon Inc

1988-05-05 Publication of GB8807783D0 publication Critical patent/GB8807783D0/en

1988-10-19 Publication of GB2203613A publication Critical patent/GB2203613A/en

1992-01-02 Application granted granted Critical

1992-01-02 Publication of GB2203613B publication Critical patent/GB2203613B/en

2008-03-31 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Links

Classifications

- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T9/00—Image coding
- G06T9/20—Contour coding, e.g. using detection of edges
- 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
- G06V30/182—Extraction of features or characteristics of the image by coding the contour of the pattern
- G06V30/1823—Extraction of features or characteristics of the image by coding the contour of the pattern using vector-coding
- 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)
Physics & Mathematics (AREA)
General Physics & Mathematics (AREA)
Multimedia (AREA)
Theoretical Computer Science (AREA)
Computer Vision & Pattern Recognition (AREA)
Image Generation (AREA)
Controls And Circuits For Display Device (AREA)

GB8807783A 1987-04-06 1988-03-31 Image processing apparatus Expired - Lifetime GB2203613B (en)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
JP62083007A JPS63249193A (en)	1987-04-06	1987-04-06	Image data compression system
JP62083008A JPH081553B2 (en)	1987-04-06	1987-04-06	Image data compression method

Publications (3)

Publication Number	Publication Date
GB8807783D0 GB8807783D0 (en)	1988-05-05
GB2203613A GB2203613A (en)	1988-10-19
GB2203613B true GB2203613B (en)	1992-01-02

Family

ID=26424071

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
GB8807783A Expired - Lifetime GB2203613B (en)	1987-04-06	1988-03-31	Image processing apparatus

Country Status (4)

Country	Link
DE (1)	DE3811396A1 (en)
FR (1)	FR2613508B1 (en)
GB (1)	GB2203613B (en)
IT (1)	IT1219909B (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US5233671A (en) *	1989-02-22	1993-08-03	Ricoh Company Ltd.	Image coding method for coding characters using a modified Bezier curve
JP2806961B2 (en) *	1989-02-22	1998-09-30	株式会社リコー	Image coding method
KR930003126B1 (en) *	1989-04-20	1993-04-19	가부시기가이샤 도시바	Method and system for detemining connection states of straight short vectors
JP2747002B2 (en) *	1989-04-20	1998-05-06	株式会社東芝	Separation method of straight line part and curved part of shape represented by straight line short vector sequence
JPH03121575A (en) *	1989-10-04	1991-05-23	Stanley Electric Co Ltd	Method for approximating and storing curve
JP2774653B2 (en) *	1990-03-14	1998-07-09	キヤノン株式会社	Character processor
FR2662041A1 (en) *	1990-05-11	1991-11-15	Metzger Gerard	Image transmission method and device
JPH04262473A (en) *	1990-09-28	1992-09-17	Xerox Corp	Method for forming high-speed graphic image using multiple steppers
JP2961121B2 (en) *	1990-10-17	1999-10-12	セイコープレシジョン株式会社	Curve approximation device
JP2522107B2 (en) *	1990-10-17	1996-08-07	株式会社精工舎	Curve fitting method
EP0604685A1 (en) *	1992-12-28	1994-07-06	Océ-Nederland B.V.	Method of modifying the fatness of characters
US5594852A (en) *	1994-08-17	1997-01-14	Laser Products, Inc.	Method for operating a curve forming device
US5978512A (en) *	1997-01-21	1999-11-02	Daewoo Electronics Co., Ltd	Polygonal approximation method and apparatus for use in a contour encoding system
KR100239592B1 (en) *	1997-01-21	2000-01-15	전주범	Method and apparatus for coding contour image

Citations (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB2147474A (en) *	1983-10-03	1985-05-09	Shaken Kk	Method of processing character or pictorial image data

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4674058A (en) *	1981-12-07	1987-06-16	Dicomed Corporation	Method and apparatus for flexigon representation of a two dimensional figure
DE3429110A1 (en) *	1984-08-03	1986-02-13	H. Berthold Ag, 1000 Berlin	METHOD FOR CODING AND DECODING CHARACTERS
US4674059A (en) *	1984-09-10	1987-06-16	Allied Corporation	Method and apparatus for generating a set of signals representing a curve

1988
- 1988-03-31 GB GB8807783A patent/GB2203613B/en not_active Expired - Lifetime
- 1988-04-05 DE DE3811396A patent/DE3811396A1/en active Granted
- 1988-04-06 FR FR8804527A patent/FR2613508B1/en not_active Expired - Fee Related
- 1988-04-06 IT IT47822/88A patent/IT1219909B/en active

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB2147474A (en) *	1983-10-03	1985-05-09	Shaken Kk	Method of processing character or pictorial image data

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
WO A1 83/02179 *

Also Published As

Publication number	Publication date
DE3811396A1 (en)	1988-10-27
IT8847822A0 (en)	1988-04-06
GB2203613A (en)	1988-10-19
GB8807783D0 (en)	1988-05-05
DE3811396C2 (en)	1991-11-07
IT1219909B (en)	1990-05-24
FR2613508B1 (en)	1996-02-09
FR2613508A1 (en)	1988-10-07

Legal Events

Date	Code	Title	Description
2004-11-24	PCNP	Patent ceased through non-payment of renewal fee

Publication	Publication Date	Title
EP0312301A3 (en)	1989-11-02	Image processing apparatus
GB2221118B (en)	1992-09-09	Image processing apparatus
EP0717550A3 (en)	1996-10-09	Image processing apparatus
GB2208445B (en)	1991-05-15	Photographic processing apparatus
EP0342060A3 (en)	1990-06-20	Image processing apparatus
EP0271178A3 (en)	1989-05-24	Image processing apparatus
EP0415648A3 (en)	1992-04-08	Image processing apparatus
EP0433944A3 (en)	1992-05-27	Image processing apparatus
EP0303474A3 (en)	1989-07-12	Color image processing apparatus
EP0280412A3 (en)	1990-12-05	Image processing
EP0411911A3 (en)	1992-12-09	Image processing apparatus
EP0429283A3 (en)	1993-03-03	Image processing apparatus
EP0259138A3 (en)	1988-10-26	Image processing apparatus image processing apparatus
EP0407213A3 (en)	1992-12-23	Image processing apparatus
EP0415661A3 (en)	1992-11-25	Image processing apparatus
EP0410700A3 (en)	1991-09-11	Image processing apparatus
GB2194117B (en)	1991-05-01	Image processing apparatus
EP0737937A3 (en)	1997-05-14	Image processing apparatus
EP0410771A3 (en)	1992-09-23	Image processing apparatus
GB2203613B (en)	1992-01-02	Image processing apparatus
EP0411921A3 (en)	1992-04-08	Image processing apparatus
EP0292292A3 (en)	1989-01-11	Image processing apparatus
GB2189964B (en)	1990-11-28	Image processing apparatus
EP0356262A3 (en)	1990-09-26	Image processing apparatus
EP0413557A3 (en)	1992-05-27	Image processing apparatus