GB1399348A - Character recognition apparatus - Google Patents

Character recognition apparatus

Info

Publication number
GB1399348A
GB1399348A GB3625171A GB3625171A GB1399348A GB 1399348 A GB1399348 A GB 1399348A GB 3625171 A GB3625171 A GB 3625171A GB 3625171 A GB3625171 A GB 3625171A GB 1399348 A GB1399348 A GB 1399348A
Authority
GB
United Kingdom
Prior art keywords
character
mask
areas
white
black
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
GB3625171A
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.)
MEL EQUIPMENT CO Ltd
Original Assignee
MEL EQUIPMENT CO Ltd
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 MEL EQUIPMENT CO Ltd filed Critical MEL EQUIPMENT CO Ltd
Priority to GB3625171A priority Critical patent/GB1399348A/en
Priority to NLAANVRAGE7210544,A priority patent/NL171935C/xx
Priority to FR7227911A priority patent/FR2149855A5/fr
Priority to DE2237873A priority patent/DE2237873A1/de
Priority to JP47077595A priority patent/JPS4826034A/ja
Priority to FR7228443A priority patent/FR2150330B2/fr
Publication of GB1399348A publication Critical patent/GB1399348A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V10/00—Arrangements for image or video recognition or understanding
    • G06V10/10—Image acquisition
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V10/00—Arrangements for image or video recognition or understanding
    • G06V10/10—Image acquisition
    • G06V10/12—Details of acquisition arrangements; Constructional details thereof
    • 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
    • G06V30/14—Image acquisition
    • G06V30/146—Aligning or centring of the image pick-up or image-field
    • 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
    • G06V30/14—Image acquisition
    • G06V30/148—Segmentation of character regions
    • 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
    • G06V30/16—Image preprocessing
    • G06V30/168—Smoothing or thinning of the pattern; Skeletonisation
    • 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
    • G06V30/19007—Matching; Proximity measures
    • G06V30/19013—Comparing pixel values or logical combinations thereof, or feature values having positional relevance, e.g. template matching
    • G06V30/1902—Shifting or otherwise transforming the patterns to accommodate for positional errors
    • 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

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)
  • Character Discrimination (AREA)
GB3625171A 1971-08-02 1971-08-02 Character recognition apparatus Expired GB1399348A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
GB3625171A GB1399348A (en) 1971-08-02 1971-08-02 Character recognition apparatus
NLAANVRAGE7210544,A NL171935C (nl) 1971-08-02 1972-08-01 Inrichting voor het herkennen van karakters.
FR7227911A FR2149855A5 (enExample) 1971-08-02 1972-08-02
DE2237873A DE2237873A1 (de) 1971-08-02 1972-08-02 Anordnung zur zeichenerkennung
JP47077595A JPS4826034A (enExample) 1971-08-02 1972-08-02
FR7228443A FR2150330B2 (enExample) 1971-08-02 1972-08-07

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB3625171A GB1399348A (en) 1971-08-02 1971-08-02 Character recognition apparatus
GB3705771 1971-08-06

Publications (1)

Publication Number Publication Date
GB1399348A true GB1399348A (en) 1975-07-02

Family

ID=26263045

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3625171A Expired GB1399348A (en) 1971-08-02 1971-08-02 Character recognition apparatus

Country Status (5)

Country Link
JP (1) JPS4826034A (enExample)
DE (1) DE2237873A1 (enExample)
FR (2) FR2149855A5 (enExample)
GB (1) GB1399348A (enExample)
NL (1) NL171935C (enExample)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4736438A (en) * 1985-01-23 1988-04-05 U.S. Philips Corporation Image processing device for the real-time processing and recognition of two-dimensional images, and an image processing system including at least two series-connected image processing devices of this kind
EP1290621A4 (en) * 2000-03-03 2007-04-11 Advanced Financial Solutions I CHARACTER RECOGNITION COMPRISING A PROCESS AND A CHEST PROCESSING SYSTEM HAVING NINE MAGNETIC CHARACTER LINES
CN118411590A (zh) * 2023-08-04 2024-07-30 内蒙古师范大学 基于场景文字检测和识别技术的街面文字图像采集设备

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4087790A (en) * 1977-08-22 1978-05-02 Recognition Equipment Incorporated Character presence processor
US4665554A (en) * 1983-07-13 1987-05-12 Machine Vision International Corporation Apparatus and method for implementing dilation and erosion transformations in digital image processing
FR2627876B1 (fr) * 1988-02-25 1990-06-15 Caron Armand Dispositif de traitement parallele d'informations

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4736438A (en) * 1985-01-23 1988-04-05 U.S. Philips Corporation Image processing device for the real-time processing and recognition of two-dimensional images, and an image processing system including at least two series-connected image processing devices of this kind
EP1290621A4 (en) * 2000-03-03 2007-04-11 Advanced Financial Solutions I CHARACTER RECOGNITION COMPRISING A PROCESS AND A CHEST PROCESSING SYSTEM HAVING NINE MAGNETIC CHARACTER LINES
CN118411590A (zh) * 2023-08-04 2024-07-30 内蒙古师范大学 基于场景文字检测和识别技术的街面文字图像采集设备

Also Published As

Publication number Publication date
NL171935C (nl) 1983-06-01
FR2150330A2 (enExample) 1973-04-06
DE2237873A1 (de) 1973-03-22
NL171935B (nl) 1983-01-03
JPS4826034A (enExample) 1973-04-05
NL7210544A (enExample) 1973-02-06
FR2149855A5 (enExample) 1973-03-30
FR2150330B2 (enExample) 1974-01-04

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee