DE2237873A1 - Anordnung zur zeichenerkennung - Google Patents

Anordnung zur zeichenerkennung

Info

Publication number
DE2237873A1
DE2237873A1 DE2237873A DE2237873A DE2237873A1 DE 2237873 A1 DE2237873 A1 DE 2237873A1 DE 2237873 A DE2237873 A DE 2237873A DE 2237873 A DE2237873 A DE 2237873A DE 2237873 A1 DE2237873 A1 DE 2237873A1
Authority
DE
Germany
Prior art keywords
mask
character
counting
positions
points
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.)
Withdrawn
Application number
DE2237873A
Other languages
German (de)
English (en)
Inventor
Ronald Howard Britt
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of DE2237873A1 publication Critical patent/DE2237873A1/de
Withdrawn legal-status Critical Current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)
DE2237873A 1971-08-02 1972-08-02 Anordnung zur zeichenerkennung Withdrawn DE2237873A1 (de)

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
DE2237873A1 true DE2237873A1 (de) 1973-03-22

Family

ID=26263045

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2237873A Withdrawn DE2237873A1 (de) 1971-08-02 1972-08-02 Anordnung zur zeichenerkennung

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)

Families Citing this family (6)

* 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
NL8500172A (nl) * 1985-01-23 1986-08-18 Philips Nv Beeldverwerkingsinrichting voor het op echte-tijd basis bewerken en herkennen van tweedimensionale beelden, en beeldverwerkingssysteem bevattende tenminste twee in serie verbondene van zulke beeldverwerkingsinrichtingen.
FR2627876B1 (fr) * 1988-02-25 1990-06-15 Caron Armand Dispositif de traitement parallele d'informations
US6654487B1 (en) * 2000-03-03 2003-11-25 Charles H. Downs, Jr. Character recognition, including method and system for processing checks with invalidated MICR lines
CN118411590B (zh) * 2023-08-04 2025-02-25 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
NL171935B (nl) 1983-01-03
JPS4826034A (enExample) 1973-04-05
GB1399348A (en) 1975-07-02
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
OD Request for examination
8130 Withdrawal