DE69227174D1 - Zeichenerkennung - Google Patents

Zeichenerkennung

Info

Publication number
DE69227174D1
DE69227174D1 DE69227174T DE69227174T DE69227174D1 DE 69227174 D1 DE69227174 D1 DE 69227174D1 DE 69227174 T DE69227174 T DE 69227174T DE 69227174 T DE69227174 T DE 69227174T DE 69227174 D1 DE69227174 D1 DE 69227174D1
Authority
DE
Germany
Prior art keywords
character recognition
recognition
character
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
DE69227174T
Other languages
English (en)
Other versions
DE69227174T2 (de
Inventor
Girolamo Gallo
Giulio Marotta
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.)
Texas Instruments Inc
Original Assignee
Texas Instruments 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.)
Filing date
Publication date
Priority claimed from ITRM910955A external-priority patent/IT1250968B/it
Priority claimed from ITRM910956A external-priority patent/IT1250969B/it
Priority claimed from IT000776 external-priority patent/IT1258883B/it
Application filed by Texas Instruments Inc filed Critical Texas Instruments Inc
Publication of DE69227174D1 publication Critical patent/DE69227174D1/de
Application granted granted Critical
Publication of DE69227174T2 publication Critical patent/DE69227174T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • 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
    • G06V30/19—Recognition using electronic means
    • G06V30/19007—Matching; Proximity measures
    • G06V30/19013—Comparing pixel values or logical combinations thereof, or feature values having positional relevance, e.g. template matching
    • 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)
  • Character Discrimination (AREA)
DE69227174T 1991-12-19 1992-12-04 Zeichenerkennung Expired - Fee Related DE69227174T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
ITRM910955A IT1250968B (it) 1991-12-19 1991-12-19 Circuito e metodo per la classificazione di configurazioni digitali.
ITRM910956A IT1250969B (it) 1991-12-19 1991-12-19 Circuito e metodo per la estrazione di caratteristiche geometriche da configurazioni digitali rappresentanti caratteri scritti a mano.
IT000776 IT1258883B (it) 1992-10-23 1992-10-23 Procedimento ed apparecchio per il riconoscimento di caratteri.

Publications (2)

Publication Number Publication Date
DE69227174D1 true DE69227174D1 (de) 1998-11-05
DE69227174T2 DE69227174T2 (de) 1999-04-29

Family

ID=27274149

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69227174T Expired - Fee Related DE69227174T2 (de) 1991-12-19 1992-12-04 Zeichenerkennung

Country Status (3)

Country Link
EP (1) EP0548030B1 (de)
JP (1) JP3291338B2 (de)
DE (1) DE69227174T2 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1272259B (it) * 1994-05-30 1997-06-16 Texas Instruments Italia Spa Procedimento ed apparecchio per il riconoscimento dei caratteri
WO2015040740A1 (ja) 2013-09-20 2015-03-26 株式会社 東芝 電子機器および方法

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3522586A (en) * 1965-08-25 1970-08-04 Nippon Electric Co Automatic character recognition apparatus
GB1545117A (en) * 1976-05-25 1979-05-02 Nat Res Dev Comparison apparatus eg for use in character recognition
US4288782A (en) * 1979-08-24 1981-09-08 Compression Labs, Inc. High speed character matcher and method
JPS6178222A (ja) * 1984-09-26 1986-04-21 Hitachi Ltd デジタルパタ−ン検出回路
JP2538878B2 (ja) * 1986-05-26 1996-10-02 株式会社東芝 情報入力装置および情報入力装置における文字記入領域制御方法
JPS63186179A (ja) * 1987-01-28 1988-08-01 Canon Inc 通報装置
JPS63198179A (ja) * 1987-02-13 1988-08-16 Canon Inc 情報認識装置
JP2762472B2 (ja) * 1988-08-17 1998-06-04 ソニー株式会社 文字認識方法および文字認識装置
JP3066530B2 (ja) * 1989-02-20 2000-07-17 富士通株式会社 オンライン手書文字認識装置

Also Published As

Publication number Publication date
EP0548030A3 (en) 1994-05-11
JP3291338B2 (ja) 2002-06-10
EP0548030B1 (de) 1998-09-30
EP0548030A2 (de) 1993-06-23
DE69227174T2 (de) 1999-04-29
JPH06215189A (ja) 1994-08-05

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Legal Events

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