CA2282764A1 - System and method for ocr assisted bar code decoding - Google Patents

System and method for ocr assisted bar code decoding Download PDF

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Publication number
CA2282764A1
CA2282764A1 CA002282764A CA2282764A CA2282764A1 CA 2282764 A1 CA2282764 A1 CA 2282764A1 CA 002282764 A CA002282764 A CA 002282764A CA 2282764 A CA2282764 A CA 2282764A CA 2282764 A1 CA2282764 A1 CA 2282764A1
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CA
Canada
Prior art keywords
bar code
character
symbol
characters
text
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.)
Granted
Application number
CA002282764A
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French (fr)
Other versions
CA2282764C (en
Inventor
Christopher E. Smith
Ming Lei
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.)
United Parcel Service of America Inc
Original Assignee
United Parcel Service Of America, Inc.
Christopher E. Smith
Ming Lei
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 United Parcel Service Of America, Inc., Christopher E. Smith, Ming Lei filed Critical United Parcel Service Of America, Inc.
Publication of CA2282764A1 publication Critical patent/CA2282764A1/en
Application granted granted Critical
Publication of CA2282764C publication Critical patent/CA2282764C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/14—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation using light without selection of wavelength, e.g. sensing reflected white light
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/14—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation using light without selection of wavelength, e.g. sensing reflected white light
    • G06K7/1404—Methods for optical code recognition
    • G06K7/146—Methods for optical code recognition the method including quality enhancement steps
    • G06K7/1473—Methods for optical code recognition the method including quality enhancement steps error correction
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V10/00—Arrangements for image or video recognition or understanding
    • G06V10/98—Detection or correction of errors, e.g. by rescanning the pattern or by human intervention; Evaluation of the quality of the acquired patterns

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Quality & Reliability (AREA)
  • Health & Medical Sciences (AREA)
  • Electromagnetism (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Artificial Intelligence (AREA)
  • Multimedia (AREA)
  • Character Discrimination (AREA)
  • Character Input (AREA)
  • Credit Cards Or The Like (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)

Abstract

A system for using OCR processing to read human readable characters that correspond to an unsuccessfully decoded code word in a bar code symbol. An imaging system captures an image of a label that includes a bar code symbol and corresponding human readable characters. The system attempts to decode the bar code symbol by decoding each of the constituent bar code characters. If a bar code character is not successfully decoded, the system locates the associated human readable text and segments the text into individual character images. The unsuccessfully decoded bar code character is mapped to one or more of the alphanumeric character images, which are converted into text characters. The resulting ASCII data is used to create a substitute bar code character in the bar code symbology. After the bar code symbol is decoded using the substitute bar code character, the symbol is validated through check summing or other means.
CA002282764A 1997-04-24 1998-04-16 System and method for ocr assisted bar code decoding Expired - Fee Related CA2282764C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/840,051 1997-04-24
US08/840,051 US5880451A (en) 1997-04-24 1997-04-24 System and method for OCR assisted bar code decoding
PCT/US1998/007867 WO1998048373A1 (en) 1997-04-24 1998-04-16 System and method for ocr assisted bar code decoding

Publications (2)

Publication Number Publication Date
CA2282764A1 true CA2282764A1 (en) 1998-10-29
CA2282764C CA2282764C (en) 2003-06-10

Family

ID=25281330

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002282764A Expired - Fee Related CA2282764C (en) 1997-04-24 1998-04-16 System and method for ocr assisted bar code decoding

Country Status (8)

Country Link
US (1) US5880451A (en)
EP (1) EP0978087B1 (en)
JP (1) JP2000511320A (en)
AT (1) ATE433589T1 (en)
CA (1) CA2282764C (en)
DE (1) DE69840893D1 (en)
ES (1) ES2328192T3 (en)
WO (1) WO1998048373A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10664675B2 (en) * 2016-04-07 2020-05-26 Toshiba Tec Kabushiki Kaisha Code recognition device

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Also Published As

Publication number Publication date
DE69840893D1 (en) 2009-07-23
EP0978087B1 (en) 2009-06-10
EP0978087A1 (en) 2000-02-09
ES2328192T3 (en) 2009-11-10
CA2282764C (en) 2003-06-10
WO1998048373A1 (en) 1998-10-29
US5880451A (en) 1999-03-09
JP2000511320A (en) 2000-08-29
ATE433589T1 (en) 2009-06-15

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