CH562479A5 - - Google Patents

Info

Publication number
CH562479A5
CH562479A5 CH172772A CH172772A CH562479A5 CH 562479 A5 CH562479 A5 CH 562479A5 CH 172772 A CH172772 A CH 172772A CH 172772 A CH172772 A CH 172772A CH 562479 A5 CH562479 A5 CH 562479A5
Authority
CH
Switzerland
Application number
CH172772A
Original Assignee
Nederlanden Staat
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 Nederlanden Staat filed Critical Nederlanden Staat
Publication of CH562479A5 publication Critical patent/CH562479A5/xx

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
    • G06V10/28—Quantising the image, e.g. histogram thresholding for discrimination between background and foreground patterns
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V10/00—Arrangements for image or video recognition or understanding
    • G06V10/10—Image acquisition
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V10/00—Arrangements for image or video recognition or understanding
    • G06V10/10—Image acquisition
    • G06V10/12—Details of acquisition arrangements; Constructional details thereof
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V10/00—Arrangements for image or video recognition or understanding
    • G06V10/40—Extraction of image or video features
    • G06V10/42—Global feature extraction by analysis of the whole pattern, e.g. using frequency domain transformations or autocorrelation
    • G06V10/421—Global feature extraction by analysis of the whole pattern, e.g. using frequency domain transformations or autocorrelation by analysing segments intersecting the pattern

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Character Input (AREA)
  • Image Processing (AREA)
  • Character Discrimination (AREA)
CH172772A 1971-02-19 1972-02-07 CH562479A5 (xx)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL717102210A NL148421B (nl) 1971-02-19 1971-02-19 Stelsel voor het lezen van tekens.

Publications (1)

Publication Number Publication Date
CH562479A5 true CH562479A5 (xx) 1975-05-30

Family

ID=19812521

Family Applications (1)

Application Number Title Priority Date Filing Date
CH172772A CH562479A5 (xx) 1971-02-19 1972-02-07

Country Status (8)

Country Link
US (1) US3858180A (xx)
JP (1) JPS5334694B1 (xx)
BE (1) BE779541A (xx)
CH (1) CH562479A5 (xx)
FR (1) FR2131354A5 (xx)
GB (1) GB1345686A (xx)
NL (1) NL148421B (xx)
SE (1) SE393698B (xx)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4106060A (en) * 1975-12-15 1978-08-08 Rca Corporation Electronic mail box
JPS5911152B2 (ja) * 1976-10-19 1984-03-13 肇産業株式会社 パタ−ンマツチング方法及びその実施装置
JPH0664631B2 (ja) * 1987-09-09 1994-08-22 インターナショナル・ビジネス・マシーンズ・コーポレーション 文字認識装置
GB2218838A (en) * 1988-05-17 1989-11-22 Joseph William Gleeson Character recognition
EP0386704A3 (en) * 1989-03-06 1991-05-22 Minolta Camera Kabushiki Kaisha Photographic system capable of recording therein photographing data and reading out the same and film structure for use in the photographic system
JPH1032495A (ja) * 1996-07-18 1998-02-03 Sony Corp データ処理装置および方法
US7555145B2 (en) * 2003-06-03 2009-06-30 Gravic, Inc. Multi-level optical mark reading that uses an unambiguous symbology of marks to fill into response bubbles
US8503785B2 (en) * 2010-01-15 2013-08-06 Gravic, Inc. Dynamic response bubble attribute compensation
US8412004B2 (en) 2010-10-15 2013-04-02 Gravic, Inc. Dynamic response form symbology processing
CN113609902A (zh) * 2021-06-28 2021-11-05 大唐互联科技(武汉)有限公司 一种基于视觉识别的电子成像机芯行业人工防错系统

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3184732A (en) * 1960-04-15 1965-05-18 Rca Corp Computer circuit
US3123804A (en) * 1960-08-23 1964-03-03 Character recognition system
US3225329A (en) * 1963-10-30 1965-12-21 Control Data Corp Optical logic reading machine
US3346845A (en) * 1964-12-11 1967-10-10 Bunker Ramo Character recognition method and apparatus
US3611267A (en) * 1969-10-16 1971-10-05 Transducer Systems Inc Apparatus for optical character recognition

Also Published As

Publication number Publication date
DE2207539A1 (de) 1972-09-07
DE2207539B2 (de) 1975-10-16
GB1345686A (en) 1974-01-30
NL148421B (nl) 1976-01-15
NL7102210A (xx) 1972-08-22
US3858180A (en) 1974-12-31
FR2131354A5 (xx) 1972-11-10
BE779541A (fr) 1972-06-16
SE393698B (sv) 1977-05-16
JPS5334694B1 (xx) 1978-09-21

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Legal Events

Date Code Title Description
PL Patent ceased
PL Patent ceased