CA2365721A1 - Determining the font of text in an image - Google Patents
Determining the font of text in an image Download PDFInfo
- Publication number
- CA2365721A1 CA2365721A1 CA002365721A CA2365721A CA2365721A1 CA 2365721 A1 CA2365721 A1 CA 2365721A1 CA 002365721 A CA002365721 A CA 002365721A CA 2365721 A CA2365721 A CA 2365721A CA 2365721 A1 CA2365721 A1 CA 2365721A1
- Authority
- CA
- Canada
- Prior art keywords
- font
- text
- image
- determining
- probabilities
- 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
- G06V30/24—Character recognition characterised by the processing or recognition method
- G06V30/242—Division of the character sequences into groups prior to recognition; Selection of dictionaries
- G06V30/244—Division of the character sequences into groups prior to recognition; Selection of dictionaries using graphical properties, e.g. alphabet type or font
- G06V30/245—Font recognition
Abstract
Systems and methods are provided for automatically determining the font of text in a captured document image. Sequences of turns (left, right, straight) around the boundaries of connected components of black pixels in the captured document image are determined. The probabilities of the sequences of turns have come from a particular font within a library of known fonts can be determined using training set statistics. Using these probabilities, the most probable source font is selected.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/749,690 US6690821B2 (en) | 2000-12-28 | 2000-12-28 | Determining the font of text in an image |
US09/749,690 | 2000-12-28 |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2365721A1 true CA2365721A1 (en) | 2002-06-28 |
CA2365721C CA2365721C (en) | 2005-07-26 |
Family
ID=25014764
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002365721A Expired - Fee Related CA2365721C (en) | 2000-12-28 | 2001-12-20 | Determining the font of text in an image |
Country Status (5)
Country | Link |
---|---|
US (1) | US6690821B2 (en) |
EP (1) | EP1220142B1 (en) |
BR (1) | BR0106463A (en) |
CA (1) | CA2365721C (en) |
DE (1) | DE60104971T2 (en) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7543758B2 (en) * | 2005-12-20 | 2009-06-09 | Xerox Corporation | Document localization of pointing actions using disambiguated visual regions |
CN100461155C (en) * | 2006-04-06 | 2009-02-11 | 华为技术有限公司 | Method and system for inputting and displaying character |
US7480411B1 (en) * | 2008-03-03 | 2009-01-20 | International Business Machines Corporation | Adaptive OCR for books |
US20100329537A1 (en) * | 2009-06-25 | 2010-12-30 | Gardi Michael E | Computer-implemented methods of identifying an optical character recognition (ocr) font to assist an operator in setting up a bank remittance coupon application |
US9842281B2 (en) * | 2014-06-05 | 2017-12-12 | Xerox Corporation | System for automated text and halftone segmentation |
US11537262B1 (en) | 2015-07-21 | 2022-12-27 | Monotype Imaging Inc. | Using attributes for font recommendations |
US11334750B2 (en) | 2017-09-07 | 2022-05-17 | Monotype Imaging Inc. | Using attributes for predicting imagery performance |
US10909429B2 (en) | 2017-09-27 | 2021-02-02 | Monotype Imaging Inc. | Using attributes for identifying imagery for selection |
US11657602B2 (en) | 2017-10-30 | 2023-05-23 | Monotype Imaging Inc. | Font identification from imagery |
US10402673B1 (en) | 2018-10-04 | 2019-09-03 | Capital One Services, Llc | Systems and methods for digitized document image data spillage recovery |
US11074473B1 (en) | 2020-01-21 | 2021-07-27 | Capital One Services, Llc | Systems and methods for digitized document image text contouring |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3815869A1 (en) * | 1987-05-08 | 1988-11-17 | Ricoh Kk | Method for the extraction of attribute quantities of a character |
JP2806961B2 (en) * | 1989-02-22 | 1998-09-30 | 株式会社リコー | Image coding method |
US5253307A (en) * | 1991-07-30 | 1993-10-12 | Xerox Corporation | Image analysis to obtain typeface information |
US5245674A (en) * | 1991-07-30 | 1993-09-14 | Xerox Corporation | Image processing using distance as a function of direction |
US5315668A (en) * | 1991-11-27 | 1994-05-24 | The United States Of America As Represented By The Secretary Of The Air Force | Offline text recognition without intraword character segmentation based on two-dimensional low frequency discrete Fourier transforms |
CA2125608A1 (en) * | 1993-06-30 | 1994-12-31 | George M. Moore | Method and system for providing substitute computer fonts |
JP3008908B2 (en) * | 1997-11-10 | 2000-02-14 | 日本電気株式会社 | Character extraction device and character extraction method |
US6337924B1 (en) * | 1999-02-26 | 2002-01-08 | Hewlett-Packard Company | System and method for accurately recognizing text font in a document processing system |
-
2000
- 2000-12-28 US US09/749,690 patent/US6690821B2/en not_active Expired - Fee Related
-
2001
- 2001-12-20 CA CA002365721A patent/CA2365721C/en not_active Expired - Fee Related
- 2001-12-20 DE DE60104971T patent/DE60104971T2/en not_active Expired - Lifetime
- 2001-12-20 EP EP01310677A patent/EP1220142B1/en not_active Expired - Lifetime
- 2001-12-28 BR BR0106463-0A patent/BR0106463A/en active Pending
Also Published As
Publication number | Publication date |
---|---|
DE60104971D1 (en) | 2004-09-23 |
EP1220142A2 (en) | 2002-07-03 |
CA2365721C (en) | 2005-07-26 |
EP1220142A3 (en) | 2003-03-19 |
EP1220142B1 (en) | 2004-08-18 |
DE60104971T2 (en) | 2005-01-20 |
US20020122594A1 (en) | 2002-09-05 |
BR0106463A (en) | 2002-09-24 |
US6690821B2 (en) | 2004-02-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed |
Effective date: 20161220 |