FR2366638A1 - Dispositif de detection et de localisation des caracteres - Google Patents
Dispositif de detection et de localisation des caracteresInfo
- Publication number
- FR2366638A1 FR2366638A1 FR7729760A FR7729760A FR2366638A1 FR 2366638 A1 FR2366638 A1 FR 2366638A1 FR 7729760 A FR7729760 A FR 7729760A FR 7729760 A FR7729760 A FR 7729760A FR 2366638 A1 FR2366638 A1 FR 2366638A1
- Authority
- FR
- France
- Prior art keywords
- information
- researchers
- characters
- location device
- character detection
- 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
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR 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
- G06V30/148—Segmentation of character regions
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR 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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Multimedia (AREA)
- Theoretical Computer Science (AREA)
- Image Analysis (AREA)
- Character Input (AREA)
Abstract
L'invention concerne un dispositif de détection et de localisation de caractères sur la surface d'un document. Les caractères sont détectés par des capteurs qui produisent un train d'information binaire mis en circulation dans un registre à décalage. Des chercheurs déclenchés sur une base de priorité examinent et poursuivent les données qui passent par une fenêtre fixe du registre. Les informations recueillies qui satisfont une condition de départ et une condition de contiguité sont mémorisées, et les informations provenant de plusieurs chercheurs sont fusionnées dans une mosaïque en mémoire pour être utilisées par un dispositif de reconnaissance de caractères. L'invention s'applique à la lecture automatique de documents imprimés.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/729,540 US4083034A (en) | 1976-10-04 | 1976-10-04 | Plural tracker character detection and boundary location system |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2366638A1 true FR2366638A1 (fr) | 1978-04-28 |
FR2366638B1 FR2366638B1 (fr) | 1985-01-25 |
Family
ID=24931508
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7729760A Granted FR2366638A1 (fr) | 1976-10-04 | 1977-10-04 | Dispositif de detection et de localisation des caracteres |
Country Status (6)
Country | Link |
---|---|
US (1) | US4083034A (fr) |
DE (1) | DE2744597A1 (fr) |
FR (1) | FR2366638A1 (fr) |
GB (1) | GB1567576A (fr) |
IT (1) | IT1090184B (fr) |
NL (1) | NL7710875A (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2401467A1 (fr) * | 1977-08-22 | 1979-03-23 | Recognition Equipment Inc | Processeur de presence de caracteres |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4251799A (en) * | 1979-03-30 | 1981-02-17 | International Business Machines Corporation | Optical character recognition using baseline information |
US4379282A (en) * | 1979-06-01 | 1983-04-05 | Dest Corporation | Apparatus and method for separation of optical character recognition data |
US4376932A (en) * | 1980-06-30 | 1983-03-15 | International Business Machines Corporation | Multi-registration in character recognition |
US4377803A (en) * | 1980-07-02 | 1983-03-22 | International Business Machines Corporation | Algorithm for the segmentation of printed fixed pitch documents |
US4365234A (en) * | 1980-10-20 | 1982-12-21 | Hendrix Electronics, Inc. | Segmentation system and method for optical character scanning |
DE3280036D1 (en) * | 1981-04-25 | 1989-12-28 | Image Processing Tech | Device for the automatic segmentation of a scanned image in an image pattern recognition system |
FR2599205B1 (fr) * | 1981-11-27 | 1990-08-24 | Thomson Csf | Procede recursif de caracterisation de zones isotropes dans une image video; dispositif detecteur de mouvement et detecteur de bruit dans une sequence d'images |
US4887301A (en) * | 1985-06-05 | 1989-12-12 | Dest Corporation | Proportional spaced text recognition apparatus and method |
US4949391A (en) * | 1986-09-26 | 1990-08-14 | Everex Ti Corporation | Adaptive image acquisition system |
US4882629A (en) * | 1987-05-08 | 1989-11-21 | Everex Ti Corporation | Adaptive exposure control system |
US5119441A (en) * | 1989-03-28 | 1992-06-02 | Ricoh Company, Ltd. | Optical character recognition apparatus and method using masks operation |
JP4668220B2 (ja) * | 2007-02-20 | 2011-04-13 | ソニー株式会社 | 画像処理装置および画像処理方法、並びにプログラム |
US9417286B2 (en) * | 2013-03-15 | 2016-08-16 | The United States Of America As Represented By The Secretary Of The Navy | Sensor enhancement through algorithmic acquisition using synchronization with a scan generator |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3613080A (en) * | 1968-11-08 | 1971-10-12 | Scan Data Corp | Character recognition system utilizing feature extraction |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3517387A (en) * | 1965-10-24 | 1970-06-23 | Ibm | Character isolation apparatus |
US3629826A (en) * | 1970-01-02 | 1971-12-21 | Ibm | Sectioning apparatus and method for character recognition systems |
US3805237A (en) * | 1971-04-30 | 1974-04-16 | Ibm | Technique for the conversion to digital form of interspersed symbolic and graphic data |
US3827025A (en) * | 1971-08-10 | 1974-07-30 | Represented By Veterans Admini | Reading machine employing a two-dimensional multiple snapshot process |
BE791992A (fr) * | 1971-11-30 | 1973-03-16 | Licentia Gmbh | Procede de centrage d'un caractere introduit dans le dispositifd'identification d'un appareil de reconnaissance de caracteres et montage permettant la mise en oeuvre de ce procede |
US3818445A (en) * | 1972-12-18 | 1974-06-18 | Ibm | Character data search system |
-
1976
- 1976-10-04 US US05/729,540 patent/US4083034A/en not_active Expired - Lifetime
-
1977
- 1977-09-30 GB GB40734/77A patent/GB1567576A/en not_active Expired
- 1977-10-03 IT IT51249/77A patent/IT1090184B/it active
- 1977-10-04 FR FR7729760A patent/FR2366638A1/fr active Granted
- 1977-10-04 NL NL7710875A patent/NL7710875A/xx not_active Application Discontinuation
- 1977-10-04 DE DE19772744597 patent/DE2744597A1/de not_active Ceased
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3613080A (en) * | 1968-11-08 | 1971-10-12 | Scan Data Corp | Character recognition system utilizing feature extraction |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2401467A1 (fr) * | 1977-08-22 | 1979-03-23 | Recognition Equipment Inc | Processeur de presence de caracteres |
Also Published As
Publication number | Publication date |
---|---|
IT1090184B (it) | 1985-06-18 |
FR2366638B1 (fr) | 1985-01-25 |
GB1567576A (en) | 1980-05-14 |
US4083034A (en) | 1978-04-04 |
DE2744597A1 (de) | 1978-09-28 |
NL7710875A (nl) | 1978-04-06 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |