DE69504069D1 - Verfahren und gerät zu dekodierung von zweidimensionalen zeichen im raumbereich - Google Patents

Verfahren und gerät zu dekodierung von zweidimensionalen zeichen im raumbereich

Info

Publication number
DE69504069D1
DE69504069D1 DE69504069T DE69504069T DE69504069D1 DE 69504069 D1 DE69504069 D1 DE 69504069D1 DE 69504069 T DE69504069 T DE 69504069T DE 69504069 T DE69504069 T DE 69504069T DE 69504069 D1 DE69504069 D1 DE 69504069D1
Authority
DE
Germany
Prior art keywords
symbol
decoding
template
targets
reflectivity
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 - Lifetime
Application number
DE69504069T
Other languages
English (en)
Other versions
DE69504069T2 (de
Inventor
Joe Zheng
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
United Parcel Service Inc
Original Assignee
United Parcel Service of America Inc
United Parcel Service 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
Priority claimed from US08/254,976 external-priority patent/US5515447A/en
Application filed by United Parcel Service of America Inc, United Parcel Service Inc filed Critical United Parcel Service of America Inc
Publication of DE69504069D1 publication Critical patent/DE69504069D1/de
Application granted granted Critical
Publication of DE69504069T2 publication Critical patent/DE69504069T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • G06K7/10544—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum
    • G06K7/10821—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum further details of bar or optical code scanning devices
    • G06K7/1093—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum further details of bar or optical code scanning devices sensing, after transfer of the image of the data-field to an intermediate store, e.g. storage with cathode ray tube
    • 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
    • G06K7/1408—Methods for optical code recognition the method being specifically adapted for the type of code
    • G06K7/1417—2D bar codes
    • 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
    • G06K7/1439—Methods for optical code recognition including a method step for retrieval of the optical code
    • G06K7/1456—Methods for optical code recognition including a method step for retrieval of the optical code determining the orientation of the optical code with respect to the reader and correcting therefore
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S379/00—Telephonic communications
    • Y10S379/91—Bar code or optical character reader with telephone
DE69504069T 1994-06-07 1995-06-01 Verfahren und gerät zu dekodierung von zweidimensionalen zeichen im raumbereich Expired - Lifetime DE69504069T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/254,976 US5515447A (en) 1994-06-07 1994-06-07 Method and apparatus for locating an acquisition target in two-dimensional images by detecting symmetry in two different directions
US30466794A 1994-09-09 1994-09-09
PCT/US1995/008432 WO1995034043A1 (en) 1994-06-07 1995-06-01 Method and apparatus for decoding two-dimensional symbols in the spatial domain

Publications (2)

Publication Number Publication Date
DE69504069D1 true DE69504069D1 (de) 1998-09-17
DE69504069T2 DE69504069T2 (de) 1998-12-10

Family

ID=26944350

Family Applications (2)

Application Number Title Priority Date Filing Date
DE69515481T Expired - Lifetime DE69515481T2 (de) 1994-06-07 1995-06-01 Verfahren und Vorrichtung zur Dekodierung eines zweidimensionalen Symboles im Raumbereich
DE69504069T Expired - Lifetime DE69504069T2 (de) 1994-06-07 1995-06-01 Verfahren und gerät zu dekodierung von zweidimensionalen zeichen im raumbereich

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE69515481T Expired - Lifetime DE69515481T2 (de) 1994-06-07 1995-06-01 Verfahren und Vorrichtung zur Dekodierung eines zweidimensionalen Symboles im Raumbereich

Country Status (11)

Country Link
US (1) US6094509A (de)
EP (2) EP0764307B1 (de)
JP (1) JP2771899B2 (de)
AT (2) ATE169754T1 (de)
CA (1) CA2187209C (de)
DE (2) DE69515481T2 (de)
DK (2) DK0766191T3 (de)
ES (2) ES2122656T3 (de)
GR (1) GR3033330T3 (de)
PT (1) PT766191E (de)
WO (1) WO1995034043A1 (de)

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Also Published As

Publication number Publication date
DK0764307T3 (da) 1999-05-10
ATE190415T1 (de) 2000-03-15
DK0766191T3 (da) 2000-07-31
DE69515481T2 (de) 2000-10-19
PT766191E (pt) 2000-08-31
ATE169754T1 (de) 1998-08-15
EP0766191A2 (de) 1997-04-02
WO1995034043A1 (en) 1995-12-14
JP2771899B2 (ja) 1998-07-02
CA2187209C (en) 2000-09-05
DE69515481D1 (de) 2000-04-13
EP0764307B1 (de) 1998-08-12
ES2144185T3 (es) 2000-06-01
ES2122656T3 (es) 1998-12-16
GR3033330T3 (en) 2000-09-29
DE69504069T2 (de) 1998-12-10
EP0766191B1 (de) 2000-03-08
US6094509A (en) 2000-07-25
EP0764307A1 (de) 1997-03-26
CA2187209A1 (en) 1995-12-14
JPH10501082A (ja) 1998-01-27
EP0766191A3 (de) 1999-01-07

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