GB1383061A - Character recognition systems - Google Patents

Character recognition systems

Info

Publication number
GB1383061A
GB1383061A GB4464372A GB4464372A GB1383061A GB 1383061 A GB1383061 A GB 1383061A GB 4464372 A GB4464372 A GB 4464372A GB 4464372 A GB4464372 A GB 4464372A GB 1383061 A GB1383061 A GB 1383061A
Authority
GB
United Kingdom
Prior art keywords
matrix
outputs
character recognition
row
store
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
Application number
GB4464372A
Other languages
English (en)
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.)
Siemens Corp
Original Assignee
Siemens 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 Siemens Corp filed Critical Siemens Corp
Publication of GB1383061A publication Critical patent/GB1383061A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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 OR CALCULATING; 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
    • G06V30/186—Extraction of features or characteristics of the image by deriving mathematical or geometrical properties from the whole image
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G06V30/192—Recognition using electronic means using simultaneous comparisons or correlations of the image signals with a plurality of references
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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)
  • Algebra (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Mathematical Physics (AREA)
  • Pure & Applied Mathematics (AREA)
  • Image Analysis (AREA)
  • Character Input (AREA)
  • Image Processing (AREA)
GB4464372A 1971-09-27 1972-09-27 Character recognition systems Expired GB1383061A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2148152A DE2148152C3 (de) 1971-09-27 1971-09-27 Verfahren und Schaltungsanordnung zum automatischen Erkennen von Schriftzeichen mit Hilfe einer translationsinvarianten Klassifikationsmatrix

Publications (1)

Publication Number Publication Date
GB1383061A true GB1383061A (en) 1975-02-05

Family

ID=5820663

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4464372A Expired GB1383061A (en) 1971-09-27 1972-09-27 Character recognition systems

Country Status (8)

Country Link
US (1) US3815090A (enExample)
BE (1) BE789353A (enExample)
DE (1) DE2148152C3 (enExample)
FR (1) FR2155304A5 (enExample)
GB (1) GB1383061A (enExample)
IT (1) IT967862B (enExample)
LU (1) LU66152A1 (enExample)
NL (1) NL7213090A (enExample)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3969699A (en) * 1975-04-11 1976-07-13 Honeywell Inc. Image dissector with many apertures for Hadamard encoding
US3982227A (en) * 1975-06-02 1976-09-21 General Electric Company Pattern recognition machine for analyzing line orientation
US4072928A (en) * 1975-10-10 1978-02-07 Sangamo Weston, Inc. Industrial system for inspecting and identifying workpieces
JPS6016673B2 (ja) * 1978-12-25 1985-04-26 川崎重工業株式会社 サ−ボ系における被検体認識装置
EP0033533A3 (en) * 1980-02-04 1982-09-01 Transaction Sciences Corporation Methods and apparatus for the automatic classification of patterns
US4615619A (en) * 1984-03-19 1986-10-07 D.O.M. Associates, Inc. Stationary, electrically alterable, optical masking device and spectroscopic apparatus employing same
US4750834A (en) * 1986-01-07 1988-06-14 D.O.M. Associates, Inc. Interferometer including stationary, electrically alterable optical masking device
US4856897A (en) * 1987-08-14 1989-08-15 D.O.M. Associates, Inc. Raman spectrometer having Hadamard electrooptical mask and diode detector
WO1994027276A1 (en) * 1993-05-10 1994-11-24 Motorola, Inc. Method and apparatus for receiving and processing compressed image data for presentation by an active-addressed display
US5828066A (en) * 1996-07-02 1998-10-27 Messerschmidt; Robert G. Multisource infrared spectrometer
CN110059719B (zh) * 2019-03-18 2022-08-09 西北工业大学 一种基于沃尔什变换的图像矩的目标识别方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1250166B (de) * 1962-05-21 1967-09-14 International Business Machines Corporation Armonk, NY (V St A) Vorrichtung zur maschinellen Zeichen erkennung
US3341814A (en) * 1962-07-11 1967-09-12 Burroughs Corp Character recognition
US3705981A (en) * 1970-10-05 1972-12-12 Itt Sequency filters based on walsh functions for signals with two space variables

Also Published As

Publication number Publication date
LU66152A1 (enExample) 1973-04-02
FR2155304A5 (enExample) 1973-05-18
DE2148152B2 (de) 1975-05-07
DE2148152C3 (de) 1975-12-18
NL7213090A (enExample) 1973-03-29
US3815090A (en) 1974-06-04
BE789353A (fr) 1973-03-27
IT967862B (it) 1974-03-11
DE2148152A1 (de) 1973-04-05

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees