DE69425084D1 - Verfahren und Gerät zur Erkennung von Textzeilen, Wörtern und räumlichen Merkmalen von Zeichenzellen - Google Patents
Verfahren und Gerät zur Erkennung von Textzeilen, Wörtern und räumlichen Merkmalen von ZeichenzellenInfo
- Publication number
- DE69425084D1 DE69425084D1 DE69425084T DE69425084T DE69425084D1 DE 69425084 D1 DE69425084 D1 DE 69425084D1 DE 69425084 T DE69425084 T DE 69425084T DE 69425084 T DE69425084 T DE 69425084T DE 69425084 D1 DE69425084 D1 DE 69425084D1
- Authority
- DE
- Germany
- Prior art keywords
- words
- text lines
- spatial features
- recognizing text
- character cells
- 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
- G06V10/00—Arrangements for image or video recognition or understanding
- G06V10/20—Image preprocessing
- G06V10/26—Segmentation of patterns in the image field; Cutting or merging of image elements to establish the pattern region, e.g. clustering-based techniques; Detection of occlusion
-
- 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
- G06V30/158—Segmentation of character regions using character size, text spacings or pitch estimation
-
- 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)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Multimedia (AREA)
- Theoretical Computer Science (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Character Input (AREA)
- Character Discrimination (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/047,514 US5384864A (en) | 1993-04-19 | 1993-04-19 | Method and apparatus for automatic determination of text line, word and character cell spatial features |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69425084D1 true DE69425084D1 (de) | 2000-08-10 |
DE69425084T2 DE69425084T2 (de) | 2000-11-09 |
Family
ID=21949404
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69425084T Expired - Lifetime DE69425084T2 (de) | 1993-04-19 | 1994-04-18 | Verfahren und Gerät zur Erkennung von Textzeilen, Wörtern und räumlichen Merkmalen von Zeichenzellen |
Country Status (5)
Country | Link |
---|---|
US (1) | US5384864A (de) |
EP (1) | EP0621554B1 (de) |
JP (1) | JPH0713995A (de) |
KR (1) | KR970002420B1 (de) |
DE (1) | DE69425084T2 (de) |
Families Citing this family (47)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0606780B1 (de) * | 1993-01-11 | 2001-07-11 | Canon Kabushiki Kaisha | Gerät und Verfahren zur Bildverarbeitung |
US5513304A (en) * | 1993-04-19 | 1996-04-30 | Xerox Corporation | Method and apparatus for enhanced automatic determination of text line dependent parameters |
US5517578A (en) * | 1993-05-20 | 1996-05-14 | Aha! Software Corporation | Method and apparatus for grouping and manipulating electronic representations of handwriting, printing and drawings |
US6587587B2 (en) | 1993-05-20 | 2003-07-01 | Microsoft Corporation | System and methods for spacing, storing and recognizing electronic representations of handwriting, printing and drawings |
JP3042945B2 (ja) * | 1993-07-07 | 2000-05-22 | 富士通株式会社 | 画像抽出装置 |
EP0981243B1 (de) * | 1993-07-16 | 2010-03-17 | Sharp Kabushiki Kaisha | Bilddatenprozessor |
CA2154952A1 (en) * | 1994-09-12 | 1996-03-13 | Robert M. Ayers | Method and apparatus for identifying words described in a page description language file |
EP0702322B1 (de) * | 1994-09-12 | 2002-02-13 | Adobe Systems Inc. | Verfahren und Gerät zur Identifikation von Wörtern, die in einem portablen elektronischen Dokument beschrieben sind |
JP3805005B2 (ja) * | 1994-11-09 | 2006-08-02 | キヤノン株式会社 | 画像処理装置及び光学的文字認識装置及びそれらの方法 |
ATE185211T1 (de) * | 1995-01-31 | 1999-10-15 | United Parcel Service Inc | Verfahren und gerät zum trennen des vordergrunds und hintergrunds in textenthaltenden bildern |
US5999647A (en) * | 1995-04-21 | 1999-12-07 | Matsushita Electric Industrial Co., Ltd. | Character extraction apparatus for extracting character data from a text image |
MY121607A (en) * | 1995-07-10 | 2006-02-28 | Hyundai Curitel Inc | Grid moving method of object image and apparatus using the same and compaction/motion estimation method using the same and apparatus thereof |
US5867597A (en) * | 1995-09-05 | 1999-02-02 | Ricoh Corporation | High-speed retrieval by example |
US5737442A (en) * | 1995-10-20 | 1998-04-07 | Bcl Computers | Processor based method for extracting tables from printed documents |
US5848191A (en) * | 1995-12-14 | 1998-12-08 | Xerox Corporation | Automatic method of generating thematic summaries from a document image without performing character recognition |
US5892842A (en) * | 1995-12-14 | 1999-04-06 | Xerox Corporation | Automatic method of identifying sentence boundaries in a document image |
US5850476A (en) * | 1995-12-14 | 1998-12-15 | Xerox Corporation | Automatic method of identifying drop words in a document image without performing character recognition |
US5683586A (en) * | 1996-02-05 | 1997-11-04 | Harcourt; Gregory A. | Method and apparatus for magnetically treating a fluid |
US5909510A (en) * | 1997-05-19 | 1999-06-01 | Xerox Corporation | Method and apparatus for document classification from degraded images |
US6687404B1 (en) | 1997-06-20 | 2004-02-03 | Xerox Corporation | Automatic training of layout parameters in a 2D image model |
JP4320064B2 (ja) * | 1998-07-10 | 2009-08-26 | 富士通株式会社 | 画像処理装置及び記録媒体 |
JP3897272B2 (ja) * | 1999-09-28 | 2007-03-22 | 富士フイルム株式会社 | 画像解析装置 |
US8682077B1 (en) | 2000-11-28 | 2014-03-25 | Hand Held Products, Inc. | Method for omnidirectional processing of 2D images including recognizable characters |
WO2003063067A1 (en) * | 2002-01-24 | 2003-07-31 | Chatterbox Systems, Inc. | Method and system for locating positions in printed texts and delivering multimedia information |
US7164797B2 (en) | 2002-04-25 | 2007-01-16 | Microsoft Corporation | Clustering |
US7120297B2 (en) | 2002-04-25 | 2006-10-10 | Microsoft Corporation | Segmented layered image system |
US7024039B2 (en) | 2002-04-25 | 2006-04-04 | Microsoft Corporation | Block retouching |
US7392472B2 (en) * | 2002-04-25 | 2008-06-24 | Microsoft Corporation | Layout analysis |
US7043079B2 (en) | 2002-04-25 | 2006-05-09 | Microsoft Corporation | “Don't care” pixel interpolation |
US7263227B2 (en) | 2002-04-25 | 2007-08-28 | Microsoft Corporation | Activity detector |
US7110596B2 (en) | 2002-04-25 | 2006-09-19 | Microsoft Corporation | System and method facilitating document image compression utilizing a mask |
JP2004038321A (ja) * | 2002-06-28 | 2004-02-05 | Fujitsu Ltd | 文書レイアウト解析プログラム、文書レイアウト解析装置および文書レイアウト解析方法 |
US7302098B2 (en) * | 2004-12-03 | 2007-11-27 | Motorola, Inc. | Character segmentation method and apparatus |
WO2006066325A1 (en) * | 2004-12-21 | 2006-06-29 | Canon Kabushiki Kaisha | Segmenting digital image and producing compact representation |
US7602972B1 (en) * | 2005-04-25 | 2009-10-13 | Adobe Systems, Incorporated | Method and apparatus for identifying white space tables within a document |
US7650041B2 (en) | 2006-02-24 | 2010-01-19 | Symbol Technologies, Inc. | System and method for optical character recognition in an image |
US8218890B2 (en) * | 2008-01-22 | 2012-07-10 | The Neat Company | Method and apparatus for cropping images |
US8620080B2 (en) * | 2008-09-26 | 2013-12-31 | Sharp Laboratories Of America, Inc. | Methods and systems for locating text in a digital image |
EP2275972B1 (de) * | 2009-07-06 | 2018-11-28 | AO Kaspersky Lab | System und Verfahren zur Identifizierung von textbasiertem Spam in Bildern |
US9003531B2 (en) | 2009-10-01 | 2015-04-07 | Kaspersky Lab Zao | Comprehensive password management arrangment facilitating security |
US8526732B2 (en) * | 2010-03-10 | 2013-09-03 | Microsoft Corporation | Text enhancement of a textual image undergoing optical character recognition |
US8571270B2 (en) * | 2010-05-10 | 2013-10-29 | Microsoft Corporation | Segmentation of a word bitmap into individual characters or glyphs during an OCR process |
US9237255B1 (en) | 2014-08-25 | 2016-01-12 | Xerox Corporation | Methods and systems for processing documents |
CN106446896B (zh) * | 2015-08-04 | 2020-02-18 | 阿里巴巴集团控股有限公司 | 一种字符分割方法、装置及电子设备 |
US20170068868A1 (en) * | 2015-09-09 | 2017-03-09 | Google Inc. | Enhancing handwriting recognition using pre-filter classification |
US9842251B2 (en) * | 2016-01-29 | 2017-12-12 | Konica Minolta Laboratory U.S.A., Inc. | Bulleted lists |
KR101999549B1 (ko) | 2017-07-25 | 2019-07-12 | 주식회사 한글과컴퓨터 | 셀 자동 분할 장치 |
Family Cites Families (12)
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 |
US4206442A (en) * | 1974-07-03 | 1980-06-03 | Nippon Electric Co., Ltd. | Letter segmenting apparatus for OCR comprising multi-level segmentor operable when binary segmenting fails |
US4173015A (en) * | 1978-08-16 | 1979-10-30 | Recognition Equipment Incorporated | System and method for character presence detection |
JPS56129981A (en) * | 1980-03-14 | 1981-10-12 | Toshiba Corp | Optical character reader |
US4377803A (en) * | 1980-07-02 | 1983-03-22 | International Business Machines Corporation | Algorithm for the segmentation of printed fixed pitch documents |
EP0120334B1 (de) * | 1983-03-01 | 1989-12-06 | Nec Corporation | System zum Bestimmen des Zeichenabstandes |
US4918740A (en) * | 1985-10-01 | 1990-04-17 | Palantir Corporation | Processing means for use in an optical character recognition system |
US4899394A (en) * | 1986-05-09 | 1990-02-06 | Prodigy Systems Corporation | Apparatus and method for image compression |
US5001766A (en) * | 1988-05-16 | 1991-03-19 | At&T Bell Laboratories | Apparatus and method for skew control of document images |
US5062141A (en) * | 1988-06-02 | 1991-10-29 | Ricoh Company, Ltd. | Method of segmenting characters in lines which may be skewed, for allowing improved optical character recognition |
JPH0816918B2 (ja) * | 1989-04-18 | 1996-02-21 | シャープ株式会社 | 行抽出方法 |
US5253307A (en) * | 1991-07-30 | 1993-10-12 | Xerox Corporation | Image analysis to obtain typeface information |
-
1993
- 1993-04-19 US US08/047,514 patent/US5384864A/en not_active Expired - Lifetime
-
1994
- 1994-03-11 KR KR1019940004751A patent/KR970002420B1/ko not_active IP Right Cessation
- 1994-04-08 JP JP6070294A patent/JPH0713995A/ja not_active Withdrawn
- 1994-04-18 EP EP94302738A patent/EP0621554B1/de not_active Expired - Lifetime
- 1994-04-18 DE DE69425084T patent/DE69425084T2/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US5384864A (en) | 1995-01-24 |
DE69425084T2 (de) | 2000-11-09 |
EP0621554A3 (de) | 1995-05-24 |
EP0621554A2 (de) | 1994-10-26 |
JPH0713995A (ja) | 1995-01-17 |
KR970002420B1 (ko) | 1997-03-05 |
KR940024625A (ko) | 1994-11-18 |
EP0621554B1 (de) | 2000-07-05 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition |