DE3786472D1 - Vorrichtung fuer optische zeichenerkennung. - Google Patents

Vorrichtung fuer optische zeichenerkennung.

Info

Publication number
DE3786472D1
DE3786472D1 DE8787103812T DE3786472T DE3786472D1 DE 3786472 D1 DE3786472 D1 DE 3786472D1 DE 8787103812 T DE8787103812 T DE 8787103812T DE 3786472 T DE3786472 T DE 3786472T DE 3786472 D1 DE3786472 D1 DE 3786472D1
Authority
DE
Germany
Prior art keywords
character recognition
optical character
optical
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
DE8787103812T
Other languages
English (en)
Other versions
DE3786472T2 (de
Inventor
Tetsuo C O Nec Corporati Umeda
Shigenobu C O Nec Corpo Kasuya
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.)
NEC Corp
Original Assignee
NEC 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 NEC Corp filed Critical NEC Corp
Application granted granted Critical
Publication of DE3786472D1 publication Critical patent/DE3786472D1/de
Publication of DE3786472T2 publication Critical patent/DE3786472T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/40—Picture signal circuits
    • H04N1/403—Discrimination between the two tones in the picture signal of a two-tone original
    • 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
    • G06V30/16—Image preprocessing
    • G06V30/162—Quantising the image signal
    • 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)
  • Multimedia (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Signal Processing (AREA)
  • Character Input (AREA)
  • Image Analysis (AREA)
DE87103812T 1986-03-17 1987-03-16 Vorrichtung für optische Zeichenerkennung. Expired - Fee Related DE3786472T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP61058585A JPS62214481A (ja) 1986-03-17 1986-03-17 画質判定装置

Publications (2)

Publication Number Publication Date
DE3786472D1 true DE3786472D1 (de) 1993-08-19
DE3786472T2 DE3786472T2 (de) 1993-11-11

Family

ID=13088542

Family Applications (1)

Application Number Title Priority Date Filing Date
DE87103812T Expired - Fee Related DE3786472T2 (de) 1986-03-17 1987-03-16 Vorrichtung für optische Zeichenerkennung.

Country Status (4)

Country Link
US (1) US4747149A (de)
EP (1) EP0238027B1 (de)
JP (1) JPS62214481A (de)
DE (1) DE3786472T2 (de)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5191622A (en) * 1987-07-17 1993-03-02 Hitachi, Ltd. Hand-written character recognition apparatus with a personal dictionary preparation function
JP2727549B2 (ja) * 1988-01-29 1998-03-11 日本電気株式会社 最適画質選択装置
US5097520A (en) * 1989-01-20 1992-03-17 Ricoh Company, Ltd. Method of obtaining optimum threshold values
US5093871A (en) * 1989-10-10 1992-03-03 Unisys Corporation Method and apparatus for effecting background suppression of image data
US5668646A (en) * 1990-02-06 1997-09-16 Canon Kabushiki Kaisha Apparatus and method for decoding differently encoded multi-level and binary image data, the later corresponding to a color in the original image
ATE137377T1 (de) * 1990-02-06 1996-05-15 Canon Kk Bildverarbeitungsgerät
US5214744A (en) * 1990-12-14 1993-05-25 Westinghouse Electric Corp. Method and apparatus for automatically identifying targets in sonar images
US5157740A (en) * 1991-02-07 1992-10-20 Unisys Corporation Method for background suppression in an image data processing system
US6323961B1 (en) 1992-11-06 2001-11-27 Michael I. Rackman Facsimile machine for printing documents with selectively aligned edges
US5311607A (en) * 1993-08-25 1994-05-10 Crosby Peter A Facsimile machine for printing documents all with corresponding edges aligned but without requiring scanning
JPH07105312A (ja) * 1993-10-07 1995-04-21 Fujitsu Ltd 光学式文字読取装置における文字イメージのごみ除去方法及び装置
US5493539A (en) * 1994-03-11 1996-02-20 Westinghouse Electric Corporation Two-stage detection and discrimination system for side scan sonar equipment
US5493619A (en) * 1994-03-11 1996-02-20 Haley; Paul H. Normalization method for eliminating false detections in side scan sonar images
DE4411248C1 (de) * 1994-03-31 1995-10-26 Licentia Gmbh Verfahren und Vorrichtung zum Binarisieren von Pixel-Daten
US6067376A (en) * 1998-01-16 2000-05-23 Cognex Corporation Classifying pixels of an image
KR100295360B1 (ko) * 1998-10-13 2001-11-26 윤종용 쉐이딩알고리즘을이용한영상처리방법
JP3748172B2 (ja) * 1998-12-09 2006-02-22 富士通株式会社 画像処理装置
FR2851357B1 (fr) * 2003-02-19 2005-04-22 Solystic Procede pour la reconnaissance optique d'envois postaux utilisant plusieurs images
US7590260B2 (en) * 2003-09-25 2009-09-15 Siemens Aktiengesellschaft Method and apparatus for video coding by validation matrix
DE102006016602B4 (de) * 2006-04-06 2007-12-13 Siemens Ag Verfahren zur Erkennung einer Postsendungsinformation
US9017188B2 (en) 2009-04-08 2015-04-28 Shoot-A-Way, Inc. System and method for improving a basketball player's shooting including a detection and measurement system
US10537780B2 (en) 2009-04-08 2020-01-21 Shoot-A-Way, Inc. Sensor for detecting whether a basketball player's shot was successful
US9233292B2 (en) 2009-04-08 2016-01-12 Shoot-A-Way, Inc. System and method for improving a basketball player's shooting including a tracking and control system for tracking, controlling and reporting statistics
USD972675S1 (en) 2019-09-06 2022-12-13 Airborne Athletics, Inc. Basketball passing machine
US11135500B1 (en) 2019-09-11 2021-10-05 Airborne Athletics, Inc. Device for automatic sensing of made and missed sporting attempts

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1483569A (de) * 1965-06-22 1967-09-06
US3668637A (en) * 1969-09-16 1972-06-06 Tokyo Shibaura Electric Co Character reader having optimum quantization level
AU469338B2 (en) * 1972-02-21 1973-08-23 Philco-Ford Corporation Optical character recogniton system using parallel different scan signal processors to feed higher speed asynchonour recognition register
JPS5579590A (en) * 1978-12-13 1980-06-16 Hitachi Ltd Video data processor
JPS57171715A (en) * 1981-04-17 1982-10-22 Toyobo Co Ltd Modified synthetic fiber and its preparation
JPS59106079A (ja) * 1982-12-10 1984-06-19 Omron Tateisi Electronics Co 図形照合装置の二値化装置

Also Published As

Publication number Publication date
DE3786472T2 (de) 1993-11-11
EP0238027B1 (de) 1993-07-14
EP0238027A3 (en) 1990-08-22
US4747149A (en) 1988-05-24
JPS62214481A (ja) 1987-09-21
EP0238027A2 (de) 1987-09-23

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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