ES2103291T3 - Metodo para leer e identificar la informacion de un signo (imagen); preferentemente de un codigo de barras, dentro de un campo bidimensional o tridimensional con la ayuda de una camara de video que es capaz de generar una señal de video numerica de la imagen. - Google Patents
Metodo para leer e identificar la informacion de un signo (imagen); preferentemente de un codigo de barras, dentro de un campo bidimensional o tridimensional con la ayuda de una camara de video que es capaz de generar una señal de video numerica de la imagen.Info
- Publication number
- ES2103291T3 ES2103291T3 ES91118979T ES91118979T ES2103291T3 ES 2103291 T3 ES2103291 T3 ES 2103291T3 ES 91118979 T ES91118979 T ES 91118979T ES 91118979 T ES91118979 T ES 91118979T ES 2103291 T3 ES2103291 T3 ES 2103291T3
- Authority
- ES
- Spain
- Prior art keywords
- image
- video
- dimensional
- video signal
- information
- 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
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; 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
- G06K7/1092—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 by means of TV-scanning
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Artificial Intelligence (AREA)
- Computer Vision & Pattern Recognition (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Image Analysis (AREA)
Abstract
LA INVENCION CONCIERNE A UN PROCEDIMIENTO PARA LA LECTURA E IDENTIFICACION DE LA INFORMACION DE UN MODELO DE DIBUJO (IMAGEN), EN ESPECIAL DE UN BARCODE, DENTRO DE UN CAMPO BI-, O TRI-DIMENSIONAL, MEDIANTE UNA VIDEO-CAMARA (1) Y UN PROCESADOR BINARIO (3) QUE, A PARTIR DE LA VIDEO SEÑAL DE LA IMAGEN, PRODUCE UNA SEÑAL BINARIA (BIN). LA VIDEOSEÑAL (F(T)) SE DIFERENCIA DOS VECES SEGUN EL TIEMPO, Y A PARTIR DE LAS POSICIONES DE CERO DE LA SEGUNDA DERIVADA (F''''(T)) SE DEDUCEN FLANCOS DE CONEXION, QUE SOLO SEGUIRAN ELABORANDOSE, SI EL IMPORTE DE LA VIDEO SEÑAL DE LA PRIMERA DERIVADA (F''(T)) SOBREPASA UN LIMITE (A-A'') PRECALCULABLE. LA FRECUENCIA DE SAMPLING DE LA VIDEO SEÑAL BINARIA ES MAYOR O IGUAL A LA FRECUENCIA DE SAMPLING DE LA CAMARA DE VIDEO. DENTRO DE UN AMBIENTE LOCAL SE CALCULA LA FUNCION DE AUTOCORRELACION PARA LA MAYOR PARTE DE LOS PUNTOS DE APOYO DE LA SEÑAL BINARIA, Y A PARTIR DE LOS VALORES OBTENIDOS DE LA FUNCION DE AUTOCORRELACION, SE CALCULA UN MAXIMO LOCAL Y/O EL CORRESPONDIENTEVECTOR DE DIRECCION, GRACIAS A LO CUAL PUEDE AVERIGUARSE LA ESTRUCTURA, POR EJEMPLO, DE UN BARCO.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4035396A DE4035396A1 (de) | 1990-11-07 | 1990-11-07 | Verfahren und vorrichtung zum lesen und identifizieren der information einer zeichen-vorlage, insbesondere barcode, innerhalb eines zwei- oder dreidimensionalen feldes mittels einer videokamera, die ein binaeres videosignal des bildes erzeugt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES2103291T3 true ES2103291T3 (es) | 1997-09-16 |
Family
ID=6417810
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES91118979T Expired - Lifetime ES2103291T3 (es) | 1990-11-07 | 1991-11-07 | Metodo para leer e identificar la informacion de un signo (imagen); preferentemente de un codigo de barras, dentro de un campo bidimensional o tridimensional con la ayuda de una camara de video que es capaz de generar una señal de video numerica de la imagen. |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0484935B1 (es) |
| DE (2) | DE4035396A1 (es) |
| ES (1) | ES2103291T3 (es) |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5196684A (en) * | 1991-03-25 | 1993-03-23 | Opticon, Inc. | Method and apparatus for improving the throughput of a CCD bar code scanner/decoder |
| CN1035287C (zh) * | 1992-02-20 | 1997-06-25 | 欧林巴斯光学工业股份有限公司 | 条形码记号读取装置 |
| US5276315A (en) * | 1992-05-14 | 1994-01-04 | United Parcel Service Of America, Inc. | Method and apparatus for processing low resolution images of degraded bar code symbols |
| JP3233981B2 (ja) * | 1992-05-26 | 2001-12-04 | オリンパス光学工業株式会社 | シンボル情報読取装置 |
| JP3154809B2 (ja) * | 1992-05-26 | 2001-04-09 | オリンパス光学工業株式会社 | バーコードリーダ装置 |
| JP3187936B2 (ja) * | 1992-05-29 | 2001-07-16 | オリンパス光学工業株式会社 | バーコード読取装置 |
| US5329105A (en) * | 1992-08-10 | 1994-07-12 | United Parcel Service Of America, Inc. | Method and apparatus for determining the width of elements of bar code symbols |
| JP3191997B2 (ja) * | 1992-08-31 | 2001-07-23 | オリンパス光学工業株式会社 | シンボル情報読取装置 |
| JP3191999B2 (ja) * | 1992-09-10 | 2001-07-23 | オリンパス光学工業株式会社 | バーコードシンボル読取装置 |
| JPH0749922A (ja) * | 1993-03-12 | 1995-02-21 | Olympus Optical Co Ltd | シンボル情報読取方法及び装置、及び光電変換スキャナ |
| EP0764307B1 (en) * | 1994-06-07 | 1998-08-12 | United Parcel Service Of America, Inc. | Method and apparatus for decoding two-dimensional symbols in the spatial domain |
| US5979763A (en) * | 1995-10-13 | 1999-11-09 | Metanetics Corporation | Sub-pixel dataform reader with dynamic noise margins |
| US6250551B1 (en) * | 1998-06-12 | 2001-06-26 | Symbol Technologies, Inc. | Autodiscrimination and line drawing techniques for code readers |
| DE19945837C2 (de) * | 1999-09-24 | 2003-11-27 | Leuze Electronic Gmbh & Co Kg | Optoelektronische Vorrichtung zum Erkennen von Barcodes |
| AU2003223406A1 (en) * | 2002-07-08 | 2004-01-23 | Veritec, Inc. | Method for reading a symbol having encoded information |
| US8628015B2 (en) | 2008-10-31 | 2014-01-14 | Hand Held Products, Inc. | Indicia reading terminal including frame quality evaluation processing |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3892949A (en) * | 1974-04-22 | 1975-07-01 | Rca Corp | Circuit for determining the time of transitions in an alternating signal |
| US4000397A (en) * | 1975-03-21 | 1976-12-28 | Spectra-Physics, Inc. | Signal processor method and apparatus |
| DE3279040D1 (en) * | 1981-04-09 | 1988-10-20 | Recognition Equipment Inc | Ocr and bar code reader with optimized sensor |
| DE3203897A1 (de) * | 1981-11-07 | 1983-05-19 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Vorrichtung zur erkennung und verarbeitung von zeichen und/oder vorgegebenen optischen details |
| US4387298A (en) * | 1981-11-27 | 1983-06-07 | Burroughs Corporation | Recognition logic circuit for bar code reader systems |
-
1990
- 1990-11-07 DE DE4035396A patent/DE4035396A1/de active Granted
-
1991
- 1991-11-07 DE DE59108488T patent/DE59108488D1/de not_active Expired - Fee Related
- 1991-11-07 EP EP91118979A patent/EP0484935B1/de not_active Expired - Lifetime
- 1991-11-07 ES ES91118979T patent/ES2103291T3/es not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DE4035396A1 (de) | 1992-05-14 |
| EP0484935B1 (de) | 1997-01-15 |
| DE4035396C2 (es) | 1993-08-05 |
| EP0484935A2 (de) | 1992-05-13 |
| DE59108488D1 (de) | 1997-02-27 |
| EP0484935A3 (en) | 1993-04-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FG2A | Definitive protection |
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