ES2122656T3 - Procedimiento y aparato para descodificar simbolos bidimensionales en el dominio espacial. - Google Patents

Procedimiento y aparato para descodificar simbolos bidimensionales en el dominio espacial.

Info

Publication number
ES2122656T3
ES2122656T3 ES95925498T ES95925498T ES2122656T3 ES 2122656 T3 ES2122656 T3 ES 2122656T3 ES 95925498 T ES95925498 T ES 95925498T ES 95925498 T ES95925498 T ES 95925498T ES 2122656 T3 ES2122656 T3 ES 2122656T3
Authority
ES
Spain
Prior art keywords
symbol
template
targets
reflectivity
decoding
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
ES95925498T
Other languages
English (en)
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
Application granted granted Critical
Publication of ES2122656T3 publication Critical patent/ES2122656T3/es
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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Toxicology (AREA)
  • General Health & Medical Sciences (AREA)
  • Artificial Intelligence (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Health & Medical Sciences (AREA)
  • Theoretical Computer Science (AREA)
  • Image Analysis (AREA)
  • Error Detection And Correction (AREA)
  • Image Processing (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Controls And Circuits For Display Device (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Character Input (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)

Abstract

SE PRESENTA UN METODO Y UN SISTEMA PARA DESCODIFICAR UN SIMBOLO OPTICO BIDIMENSIONAL EN LA DOMINANTE ESPACIAL. EL SISTEMA DETERMINA LA ORIENTACION DE UN SIMBOLO DE IMAGEN EN LA DOMINANTE ESPACIAL UTILIZANDO UNA PLANTILLA PARA DERIVAR UN COEFICIENTE DE CORRELACION ENTRE SEÑALES RADIALMENTE ADYACENTES EN UN ANGULO DADO DE LA PLANTILLA Y COMPARAR LOS COEFICIENTES DE CORRELACION A MEDIDA QUE LA PLANTILLA GIRA CON RESPECTO A LA IMAGEN. EL ANGULO DE MAYOR COEFICIENTE DE CORRELACION SE CORRESPONDE CON LA ORIENTACION DE UN CONJUNTO DE EJES DE UN SIMBOLO QUE INCLUYEN ELEMENTOS CONTIGUOS CUYOS CENTROS SON COLINEALES. EL SISTEMA SITUA ENTONCES CADA ELEMENTO CODIFICADO DE INFORMACION INDIVIDUAL DEL SIMBOLO UTILIZANDO SEGMENTO DEL SIMBOLO DEFINIDO POR LOS EJES, AJUSTANDO PRIMERO PARA CADA SEGMENTO LA POSICION DEL EJE Y EL TAMAÑO DEL ELEMENTO PARA LA DETERMINACION SUBSECUENTE DE LA UBICACION DE TODOS LOS ELEMENTOS PARA DESCODIFICAR. EL SISTEMA SE PRESENTA PARA SU APLICACION A UN SIMBOLO CONSTRUIDO COMO UNA MATRIZ DE ELEMENTOS DE CODIFICACION DE INFORMACION DISPUESTOS EN UN CUADRADO, CON, EN SU CENTRO, UNA DIANA DE ADQUISICION QUE CONSTA DE SEIS ANILLOS CONCENTRICOS DE REFLECTIVIDAD LUMINOSA Y OSCURA ALTERNATIVA. TAMBIEN SE PRESENTA UN METODO PARA UBICAR UNA DIANA DE ADQUISICION QUE CONSTA DE UNA PLURALIDAD DE ANILLOS CONCENTRICOS DE NIVELES ALTERNATIVOS DE REFLECTIVIDAD (FORMA DE OJO DE TORO) EN SIMBOLOGIAS BIDIMENSIONALES. LAS DIANAS PUEDEN ENCONTRARSE INCLUSO SI VARIAN DE TAMAÑO Y DE ANGULO DE INCLINACION CON RESPECTO A UNA CAMARA PARA LA OBTENCION DE IMAGENES. LAS CARACTERISTICAS DE SIMETRIA DE LAS DIANAS SE UTILIZAN PARA SITUAR LAS DIANAS INDEPENDIENTEMENTE DEL NIVEL LIMITE SELECCIONADO PARA DETERMINAR LAS TRANSICIONES DE LOS ANILLOS DE DIFERENTE REFLECTIVIDAD.
ES95925498T 1994-06-07 1995-06-01 Procedimiento y aparato para descodificar simbolos bidimensionales en el dominio espacial. Expired - Lifetime ES2122656T3 (es)

Applications Claiming Priority (2)

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

Publications (1)

Publication Number Publication Date
ES2122656T3 true ES2122656T3 (es) 1998-12-16

Family

ID=26944350

Family Applications (2)

Application Number Title Priority Date Filing Date
ES95925498T Expired - Lifetime ES2122656T3 (es) 1994-06-07 1995-06-01 Procedimiento y aparato para descodificar simbolos bidimensionales en el dominio espacial.
ES96117677T Expired - Lifetime ES2144185T3 (es) 1994-06-07 1995-06-01 Metodo y aparato para descodificar simbolos bidimensionales en el campo espacial.

Family Applications After (1)

Application Number Title Priority Date Filing Date
ES96117677T Expired - Lifetime ES2144185T3 (es) 1994-06-07 1995-06-01 Metodo y aparato para descodificar simbolos bidimensionales en el campo espacial.

Country Status (11)

Country Link
US (1) US6094509A (es)
EP (2) EP0766191B1 (es)
JP (1) JP2771899B2 (es)
AT (2) ATE169754T1 (es)
CA (1) CA2187209C (es)
DE (2) DE69515481T2 (es)
DK (2) DK0764307T3 (es)
ES (2) ES2122656T3 (es)
GR (1) GR3033330T3 (es)
PT (1) PT766191E (es)
WO (1) WO1995034043A1 (es)

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Also Published As

Publication number Publication date
EP0766191B1 (en) 2000-03-08
DE69515481D1 (de) 2000-04-13
EP0764307A1 (en) 1997-03-26
ES2144185T3 (es) 2000-06-01
DE69515481T2 (de) 2000-10-19
CA2187209A1 (en) 1995-12-14
EP0766191A2 (en) 1997-04-02
JP2771899B2 (ja) 1998-07-02
EP0764307B1 (en) 1998-08-12
ATE190415T1 (de) 2000-03-15
WO1995034043A1 (en) 1995-12-14
ATE169754T1 (de) 1998-08-15
DE69504069T2 (de) 1998-12-10
US6094509A (en) 2000-07-25
CA2187209C (en) 2000-09-05
DE69504069D1 (de) 1998-09-17
DK0766191T3 (da) 2000-07-31
DK0764307T3 (da) 1999-05-10
EP0766191A3 (en) 1999-01-07
GR3033330T3 (en) 2000-09-29
PT766191E (pt) 2000-08-31
JPH10501082A (ja) 1998-01-27

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