CA971273A - Method of and apparatus for optical character recognition, reading and reproduction - Google Patents

Method of and apparatus for optical character recognition, reading and reproduction

Info

Publication number
CA971273A
CA971273A CA140,746A CA140746A CA971273A CA 971273 A CA971273 A CA 971273A CA 140746 A CA140746 A CA 140746A CA 971273 A CA971273 A CA 971273A
Authority
CA
Canada
Prior art keywords
reproduction
reading
character recognition
optical character
optical
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
CA140,746A
Other languages
English (en)
Other versions
CA140746S (en
Inventor
William F. Schreiber
Samuel J. Mason
Donald E. Troxel
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.)
ECRM Inc
Original Assignee
ECRM Inc
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 ECRM Inc filed Critical ECRM Inc
Application granted granted Critical
Publication of CA971273A publication Critical patent/CA971273A/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
    • G06V30/14—Image acquisition
    • G06V30/142—Image acquisition using hand-held instruments; Constructional details of the instruments
    • 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
    • G06V30/1437—Sensor details, e.g. position, configuration or special lenses
    • 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
    • G06V30/18143—Extracting features based on salient regional features, e.g. scale invariant feature transform [SIFT] keypoints
    • 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
    • G06V30/196—Recognition using electronic means using sequential comparisons of the image signals with a plurality of references

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Theoretical Computer Science (AREA)
  • Character Discrimination (AREA)
  • Character Input (AREA)
CA140,746A 1971-05-06 1972-04-27 Method of and apparatus for optical character recognition, reading and reproduction Expired CA971273A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US14083071A 1971-05-06 1971-05-06

Publications (1)

Publication Number Publication Date
CA971273A true CA971273A (en) 1975-07-15

Family

ID=22492969

Family Applications (1)

Application Number Title Priority Date Filing Date
CA140,746A Expired CA971273A (en) 1971-05-06 1972-04-27 Method of and apparatus for optical character recognition, reading and reproduction

Country Status (7)

Country Link
AU (1) AU462228B2 (enExample)
CA (1) CA971273A (enExample)
FR (1) FR2135665B1 (enExample)
GB (1) GB1365991A (enExample)
IT (1) IT957885B (enExample)
NL (1) NL7206035A (enExample)
SE (1) SE394221B (enExample)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118379743B (zh) * 2024-06-26 2024-09-13 江中药业股份有限公司 一种药品外观三期检测方法、系统、存储介质及电子设备

Also Published As

Publication number Publication date
DE2222913B2 (de) 1975-07-03
FR2135665B1 (enExample) 1973-07-13
GB1365991A (en) 1974-09-04
AU462228B2 (en) 1975-06-19
AU4202572A (en) 1973-11-15
NL7206035A (enExample) 1972-11-08
SE394221B (sv) 1977-06-13
IT957885B (it) 1973-10-20
DE2222913A1 (de) 1972-11-30
FR2135665A1 (enExample) 1972-12-22

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