ES2140825T3 - Procedimiento y aparato para separar el primer plano del fondo en imagenes que contienen texto. - Google Patents
Procedimiento y aparato para separar el primer plano del fondo en imagenes que contienen texto.Info
- Publication number
- ES2140825T3 ES2140825T3 ES96905228T ES96905228T ES2140825T3 ES 2140825 T3 ES2140825 T3 ES 2140825T3 ES 96905228 T ES96905228 T ES 96905228T ES 96905228 T ES96905228 T ES 96905228T ES 2140825 T3 ES2140825 T3 ES 2140825T3
- Authority
- ES
- Spain
- Prior art keywords
- background
- text
- separate
- foreground
- images containing
- 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; 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
- G06V30/16—Image preprocessing
- G06V30/162—Quantising the image signal
-
- 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)
- Facsimile Image Signal Circuits (AREA)
- Image Processing (AREA)
- Character Discrimination (AREA)
Abstract
SE PRESENTA UN METODO Y UN APARATO PARA SEPARAR IMAGENES DE ESCALA DE GRISES QUE CONTIENEN TEXTO COMO PRIMER PLANO Y MANCHAS, COLORES, RUIDO Y SIMILARES COMO FONDO. EL METODO ES ADAPTATIVO EN SU NATURALEZA. EL METODO UTILIZA CONJUNTOS MULTIPLES DE PARAMETROS DE PROCESAMIENTO DE SEPARACION EN UNA EVALUACION DE HISTOGRAMA BASADO EN EL CONTRASTE PARA PRODUCIR MULTIPLES IMAGENES BINARIAS SEPARADAS, CANDIDATAS. EL METODO SELECCIONA AUTOMATICAMENTE LA IMAGEN BINARIA DE MAYOR CALIDAD, QUE ES, LA IMAGEN BINARIA QUE MEJOR REPRESENTA EL TEXTO EN EL PRIMER PLANO, DE ENTRE LAS MULTIPLES IMAGENES BINARIAS CANDIDATAS. EL APARATO PARA IMPLEMENTAR EL METODO ES UN PROCESADOR DE "PIPELINE" PARA UNA MAYOR VELOCIDAD.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US38073295A | 1995-01-31 | 1995-01-31 |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2140825T3 true ES2140825T3 (es) | 2000-03-01 |
Family
ID=23502251
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES96905228T Expired - Lifetime ES2140825T3 (es) | 1995-01-31 | 1996-01-25 | Procedimiento y aparato para separar el primer plano del fondo en imagenes que contienen texto. |
Country Status (10)
Country | Link |
---|---|
US (1) | US5889885A (es) |
EP (1) | EP0807297B1 (es) |
JP (1) | JP3264932B2 (es) |
AT (1) | ATE185211T1 (es) |
CA (1) | CA2211258C (es) |
DE (1) | DE69604481T2 (es) |
DK (1) | DK0807297T3 (es) |
ES (1) | ES2140825T3 (es) |
GR (1) | GR3031478T3 (es) |
WO (1) | WO1996024114A2 (es) |
Families Citing this family (68)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2140825T3 (es) * | 1995-01-31 | 2000-03-01 | United Parcel Service Inc | Procedimiento y aparato para separar el primer plano del fondo en imagenes que contienen texto. |
JP3380831B2 (ja) * | 1996-03-08 | 2003-02-24 | シャープ株式会社 | 画像形成装置 |
FR2769733B1 (fr) * | 1997-10-15 | 2000-01-07 | Jeffrey Horace Johnson | Procede d'extraction automatique d'inscriptions imprimees ou manuscrites sur un fond, dans une image numerique multiniveaux |
US6411737B2 (en) * | 1997-12-19 | 2002-06-25 | Ncr Corporation | Method of selecting one of a plurality of binarization programs |
US6411741B1 (en) * | 1998-01-14 | 2002-06-25 | Kabushiki Kaisha Toshiba | Image processing apparatus |
US6507670B1 (en) * | 1998-03-05 | 2003-01-14 | Ncr Corporation | System and process for removing a background pattern from a binary image |
DE69822608T2 (de) * | 1998-05-28 | 2005-01-05 | International Business Machines Corp. | Binarisierungsverfahren in einem Zeichenerkennungssystem |
US6222642B1 (en) * | 1998-08-10 | 2001-04-24 | Xerox Corporation | System and method for eliminating background pixels from a scanned image |
TW429348B (en) * | 1999-02-12 | 2001-04-11 | Inst Information Industry | The method of dividing an image |
US6738526B1 (en) * | 1999-07-30 | 2004-05-18 | Microsoft Corporation | Method and apparatus for filtering and caching data representing images |
EP1226508B1 (en) * | 1999-07-30 | 2018-10-10 | Microsoft Technology Licensing, LLC | Adjusting character dimensions to compensate for low contrast character features |
US6577762B1 (en) * | 1999-10-26 | 2003-06-10 | Xerox Corporation | Background surface thresholding |
US6728391B1 (en) | 1999-12-03 | 2004-04-27 | United Parcel Service Of America, Inc. | Multi-resolution label locator |
DE19958553A1 (de) | 1999-12-04 | 2001-06-07 | Luratech Ges Fuer Luft Und Rau | Verfahren zur Kompression von gescannten Farb- und/oder Graustufendokumenten |
EP1104916B1 (de) * | 1999-12-04 | 2011-05-11 | LuraTech Imaging GmbH | Verfahren zur Kompression von gescannten Farb- und/oder Graustufendokumenten |
US6652489B2 (en) * | 2000-02-07 | 2003-11-25 | Medrad, Inc. | Front-loading medical injector and syringes, syringe interfaces, syringe adapters and syringe plungers for use therewith |
JP2001251507A (ja) * | 2000-03-03 | 2001-09-14 | Fujitsu Ltd | 画像処理装置 |
US6473522B1 (en) * | 2000-03-14 | 2002-10-29 | Intel Corporation | Estimating text color and segmentation of images |
US6470094B1 (en) * | 2000-03-14 | 2002-10-22 | Intel Corporation | Generalized text localization in images |
US6674900B1 (en) * | 2000-03-29 | 2004-01-06 | Matsushita Electric Industrial Co., Ltd. | Method for extracting titles from digital images |
US6771804B1 (en) * | 2000-05-16 | 2004-08-03 | Siemens Aktiengesellschaft | Method and apparatus for signal segmentation |
KR100430273B1 (ko) * | 2000-07-21 | 2004-05-04 | 엘지전자 주식회사 | 비정규적인 빈값 양자화된 칼라 히스토그램을 이용한멀티미디어 검색방법 |
US7456902B2 (en) * | 2000-12-04 | 2008-11-25 | Jlb Ventures, Llc | Method and system for identifying addressing data within a television presentation |
JP2002271611A (ja) * | 2001-03-14 | 2002-09-20 | Fujitsu Ltd | 画像処理装置 |
JP4140048B2 (ja) * | 2001-08-20 | 2008-08-27 | 富士フイルム株式会社 | 画像管理装置、画像管理プログラム並びに画像管理方法 |
JP4003428B2 (ja) * | 2001-10-10 | 2007-11-07 | セイコーエプソン株式会社 | 小切手等処理装置及び小切手等処理方法 |
KR100425324B1 (ko) * | 2002-02-09 | 2004-03-30 | 삼성전자주식회사 | 영상 신호의 콘트라스트 처리 방법 |
RU2251737C2 (ru) * | 2002-10-18 | 2005-05-10 | Аби Софтвер Лтд. | Способ автоматического определения языка распознаваемого текста при многоязычном распознавании |
US7079686B2 (en) * | 2002-08-20 | 2006-07-18 | Lexmark International, Inc. | Systems and methods for content-based document image enhancement |
KR100484170B1 (ko) * | 2002-10-25 | 2005-04-19 | 삼성전자주식회사 | 디지털 화질 개선방법 및 장치 |
JP4118749B2 (ja) * | 2002-09-05 | 2008-07-16 | 株式会社リコー | 画像処理装置、画像処理プログラムおよび記憶媒体 |
DE10326035B4 (de) * | 2003-06-10 | 2005-12-22 | Hema Electronic Gmbh | Verfahren zur adaptiven Fehlererkennung auf einer strukturierten Oberfläche |
DE10326033B4 (de) * | 2003-06-10 | 2005-12-22 | Hema Electronic Gmbh | Verfahren zur adaptiven Fehlererkennung auf einer inhomogenen Oberfläche |
DE10326032B4 (de) * | 2003-06-10 | 2006-08-31 | Hema Electronic Gmbh | Verfahren zum Selbsttest eines Bildverarbeitungssystems |
DE10326031B4 (de) * | 2003-06-10 | 2005-12-22 | Hema Electronic Gmbh | Verfahren zur adaptiven Kantenerkennung |
JP4259949B2 (ja) * | 2003-08-08 | 2009-04-30 | 株式会社リコー | 画像作成装置、画像作成プログラムおよび記録媒体 |
US7921159B1 (en) * | 2003-10-14 | 2011-04-05 | Symantec Corporation | Countering spam that uses disguised characters |
US7313275B2 (en) * | 2005-02-15 | 2007-12-25 | Primax Electronics Ltd. | Method of separating text and graphs in digital image data |
US7492957B1 (en) * | 2005-08-29 | 2009-02-17 | Symantec Corporation | Using run length encoding to detect target images |
JP4215038B2 (ja) * | 2005-09-16 | 2009-01-28 | セイコーエプソン株式会社 | 画像処理装置、画像処理方法、およびプログラム |
US7668394B2 (en) * | 2005-12-21 | 2010-02-23 | Lexmark International, Inc. | Background intensity correction of a scan of a document |
DE102006001075A1 (de) * | 2006-01-09 | 2007-07-12 | Carl Zeiss Ag | Elektronische Sehhilfe und elektronisches Sehhilfeverfahren |
US20070201743A1 (en) * | 2006-02-28 | 2007-08-30 | Sharp Laboratories Of America, Inc. | Methods and systems for identifying characteristics in a digital image |
US7813547B1 (en) | 2006-04-05 | 2010-10-12 | Unisys Corporation | Apparatus and method for detection and analysis of imagery |
US8306336B2 (en) * | 2006-05-17 | 2012-11-06 | Qualcomm Incorporated | Line or text-based image processing tools |
ES2313600T3 (es) * | 2006-05-19 | 2009-03-01 | Datasensor S.P.A. | Sensor de imagenes para un sistema de seguridad y procedimiento operativo correspondiente. |
EP2064658A4 (en) * | 2006-09-07 | 2017-08-23 | Lumex As | Relative threshold and use of edges in optical character recognition process |
US8467614B2 (en) * | 2007-11-28 | 2013-06-18 | Lumex As | Method for processing optical character recognition (OCR) data, wherein the output comprises visually impaired character images |
US8351720B2 (en) * | 2008-04-24 | 2013-01-08 | Hewlett-Packard Development Company, L.P. | Method and system providing edge enhanced image binarization |
US8170291B2 (en) * | 2008-05-09 | 2012-05-01 | The United States Postal Service | Methods and systems for analyzing the quality of digital signature confirmation images |
TWI386030B (zh) * | 2008-06-11 | 2013-02-11 | Vatics Inc | 一種混合式連結元件標籤演算法 |
US8442348B2 (en) * | 2008-11-06 | 2013-05-14 | Seiko Epson Corporation | Image noise reduction for digital images using Gaussian blurring |
US8675060B2 (en) | 2009-08-28 | 2014-03-18 | Indian Institute Of Science | Machine vision based obstacle avoidance system |
US20110149753A1 (en) * | 2009-12-21 | 2011-06-23 | Qualcomm Incorporated | Switching between media broadcast streams having varying levels of quality |
US8693743B1 (en) | 2010-02-19 | 2014-04-08 | Olive Tree Media, LLC | Analysis and display of multiple biomarker co-expression in cells and tissues |
CN101807253B (zh) * | 2010-03-22 | 2012-07-25 | 南京工程学院 | 面向输电线路基于区域宽度信息的图像骨架提取方法 |
US8977629B2 (en) | 2011-05-24 | 2015-03-10 | Ebay Inc. | Image-based popularity prediction |
GB2522365B (en) * | 2012-11-08 | 2019-07-17 | Total Sa | Method for processing an image |
JP5939154B2 (ja) * | 2012-12-27 | 2016-06-22 | ブラザー工業株式会社 | 画像処理装置およびコンピュータプログラム |
JP6080259B2 (ja) * | 2013-02-06 | 2017-02-15 | 日本電産サンキョー株式会社 | 文字切り出し装置及び文字切り出し方法 |
CN104036498B (zh) * | 2014-05-28 | 2017-01-11 | 杭州电子科技大学 | 一种基于逐层分级的oct图像质量快速评价方法 |
JP6642970B2 (ja) * | 2015-03-05 | 2020-02-12 | キヤノン株式会社 | 注目領域検出装置、注目領域検出方法及びプログラム |
US9367899B1 (en) * | 2015-05-29 | 2016-06-14 | Konica Minolta Laboratory U.S.A., Inc. | Document image binarization method |
US9710911B2 (en) * | 2015-11-30 | 2017-07-18 | Raytheon Company | System and method for generating a background reference image from a series of images to facilitate moving object identification |
DE102016004549A1 (de) * | 2016-04-15 | 2017-11-02 | Noventi Gmbh | Verfahren zu Erkennung von gedruckten Texten auf Dokumenten |
CN106775548B (zh) * | 2016-11-25 | 2018-02-23 | 北京小米移动软件有限公司 | 页面处理方法及装置 |
US10242449B2 (en) * | 2017-01-04 | 2019-03-26 | Cisco Technology, Inc. | Automated generation of pre-labeled training data |
CN111368837B (zh) * | 2018-12-25 | 2023-12-05 | 中移(杭州)信息技术有限公司 | 一种图像质量评价方法、装置、电子设备及存储介质 |
Family Cites Families (44)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3715724A (en) * | 1969-12-24 | 1973-02-06 | Olivetti & Co Spa | Apparatus for recognizing graphic symbols |
US4003999A (en) * | 1972-10-25 | 1977-01-18 | A. H. Robins Company, Incorporated | Aspirin-tea coprecipitates for treating inflammation |
US4119947A (en) * | 1977-07-20 | 1978-10-10 | Howard Noyes Leighton | Optical signal processor |
DE3107521A1 (de) * | 1981-02-27 | 1982-09-16 | Siemens AG, 1000 Berlin und 8000 München | Verfahren zum automatischen erkennen von bild- und text- oder graphikbereichen auf druckvorlagen |
GB2103449B (en) * | 1981-06-29 | 1985-05-30 | Nippon Telegraph & Telephone | Method and apparatus for gray level signal processing |
JPS5960690A (ja) * | 1982-09-30 | 1984-04-06 | Toshiba Corp | 2値化装置 |
JPS60146378A (ja) * | 1984-01-11 | 1985-08-02 | Matsushita Electric Ind Co Ltd | 画像認識装置 |
JPS6158087A (ja) * | 1984-08-29 | 1986-03-25 | Nec Corp | 画像領域分割装置 |
CA1250050A (en) * | 1985-04-17 | 1989-02-14 | Miyahiko Orita | Image processing apparatus |
JPS61276080A (ja) * | 1985-05-31 | 1986-12-06 | Toshiba Corp | 上下判定装置 |
US4837450A (en) * | 1985-07-01 | 1989-06-06 | Canon Kabushiki Kaisha | Apparatus for reading a film image with controllable illumination and threshold value |
US4742556A (en) * | 1985-09-16 | 1988-05-03 | Davis Jr Ray E | Character recognition method |
US5046114A (en) * | 1985-10-01 | 1991-09-03 | The Palantir Corporation | Method and structure for separating joined patterns for use in pattern and character recognition system |
US4809308A (en) * | 1986-02-20 | 1989-02-28 | Irt Corporation | Method and apparatus for performing automated circuit board solder quality inspections |
CA1268547A (en) * | 1986-03-31 | 1990-05-01 | Ahmed Mostafa El-Sherbini | Thresholding algorithm selection apparatus |
US4794239A (en) * | 1987-10-13 | 1988-12-27 | Intermec Corporation | Multitrack bar code and associated decoding method |
US4924078A (en) * | 1987-11-25 | 1990-05-08 | Sant Anselmo Carl | Identification symbol, system and method |
JPH01137385A (ja) * | 1987-11-25 | 1989-05-30 | Matsushita Electric Ind Co Ltd | 文字認識装置 |
US4929979A (en) * | 1988-01-29 | 1990-05-29 | Konica Corporation | Method and apparatus for processing image |
JP2727549B2 (ja) * | 1988-01-29 | 1998-03-11 | 日本電気株式会社 | 最適画質選択装置 |
JPH0746979B2 (ja) * | 1988-05-26 | 1995-05-24 | 不二製油株式会社 | 特殊栄養食品 |
DE3881392T2 (de) * | 1988-09-12 | 1993-10-21 | Oce Nederland Bv | System und Verfahren für automatische Segmentierung. |
JPH02100575A (ja) * | 1988-10-07 | 1990-04-12 | Toshiba Corp | 画像処理装置 |
JPH02196565A (ja) * | 1989-01-25 | 1990-08-03 | Eastman Kodatsuku Japan Kk | 画像二値化方式 |
JPH087785B2 (ja) * | 1989-05-16 | 1996-01-29 | 松下電器産業株式会社 | 2値化処理装置 |
US5048096A (en) * | 1989-12-01 | 1991-09-10 | Eastman Kodak Company | Bi-tonal image non-text matter removal with run length and connected component analysis |
JP2935863B2 (ja) * | 1989-12-27 | 1999-08-16 | 本田技研工業株式会社 | ハフ変換装置および方法 |
JP2768786B2 (ja) * | 1990-02-20 | 1998-06-25 | キヤノン株式会社 | 画像読み取り装置 |
US5081690A (en) * | 1990-05-08 | 1992-01-14 | Eastman Kodak Company | Row-by-row segmentation and thresholding for optical character recognition |
US5121224A (en) * | 1990-06-01 | 1992-06-09 | Eastman Kodak Company | Reproduction apparatus with selective screening and continuous-tone discrimination |
US5091965A (en) * | 1990-07-16 | 1992-02-25 | Sony Corporation | Video image processing apparatus |
US5086485A (en) * | 1990-10-19 | 1992-02-04 | Xerox Corporation | Method and apparatus for dynamically setting a background level |
JPH04268987A (ja) * | 1991-02-25 | 1992-09-24 | Nippon Steel Corp | 文字認識装置 |
JPH04268989A (ja) * | 1991-02-25 | 1992-09-24 | Nippon Steel Corp | 文字認識方法及び装置 |
US5179599A (en) * | 1991-06-17 | 1993-01-12 | Hewlett-Packard Company | Dynamic thresholding system for documents using structural information of the documents |
US5268967A (en) * | 1992-06-29 | 1993-12-07 | Eastman Kodak Company | Method for automatic foreground and background detection in digital radiographic images |
JP2951814B2 (ja) * | 1993-02-25 | 1999-09-20 | 富士通株式会社 | 画像抽出方式 |
US5444797A (en) * | 1993-04-19 | 1995-08-22 | Xerox Corporation | Method and apparatus for automatic character script determination |
US5384864A (en) * | 1993-04-19 | 1995-01-24 | Xerox Corporation | Method and apparatus for automatic determination of text line, word and character cell spatial features |
JP2933801B2 (ja) * | 1993-06-11 | 1999-08-16 | 富士通株式会社 | 文字の切り出し方法及びその装置 |
US5452367A (en) * | 1993-11-29 | 1995-09-19 | Arch Development Corporation | Automated method and system for the segmentation of medical images |
US5630037A (en) * | 1994-05-18 | 1997-05-13 | Schindler Imaging, Inc. | Method and apparatus for extracting and treating digital images for seamless compositing |
US5583659A (en) * | 1994-11-10 | 1996-12-10 | Eastman Kodak Company | Multi-windowing technique for thresholding an image using local image properties |
ES2140825T3 (es) * | 1995-01-31 | 2000-03-01 | United Parcel Service Inc | Procedimiento y aparato para separar el primer plano del fondo en imagenes que contienen texto. |
-
1996
- 1996-01-25 ES ES96905228T patent/ES2140825T3/es not_active Expired - Lifetime
- 1996-01-25 EP EP96905228A patent/EP0807297B1/en not_active Expired - Lifetime
- 1996-01-25 DE DE69604481T patent/DE69604481T2/de not_active Expired - Lifetime
- 1996-01-25 JP JP52363796A patent/JP3264932B2/ja not_active Expired - Fee Related
- 1996-01-25 DK DK96905228T patent/DK0807297T3/da active
- 1996-01-25 AT AT96905228T patent/ATE185211T1/de not_active IP Right Cessation
- 1996-01-25 WO PCT/US1996/001060 patent/WO1996024114A2/en active IP Right Grant
- 1996-01-25 CA CA002211258A patent/CA2211258C/en not_active Expired - Fee Related
-
1997
- 1997-04-24 US US08/847,303 patent/US5889885A/en not_active Expired - Lifetime
-
1999
- 1999-10-08 GR GR990402570T patent/GR3031478T3/el unknown
Also Published As
Publication number | Publication date |
---|---|
CA2211258C (en) | 2000-12-26 |
ATE185211T1 (de) | 1999-10-15 |
DE69604481T2 (de) | 2000-03-30 |
EP0807297B1 (en) | 1999-09-29 |
GR3031478T3 (en) | 2000-01-31 |
JP3264932B2 (ja) | 2002-03-11 |
US5889885A (en) | 1999-03-30 |
EP0807297A2 (en) | 1997-11-19 |
DK0807297T3 (da) | 2000-04-10 |
DE69604481D1 (de) | 1999-11-04 |
CA2211258A1 (en) | 1996-08-08 |
JPH10506733A (ja) | 1998-06-30 |
WO1996024114A2 (en) | 1996-08-08 |
WO1996024114A3 (en) | 1996-11-28 |
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