JP2013527513A5 - - Google Patents

Download PDF

Info

Publication number
JP2013527513A5
JP2013527513A5 JP2012557155A JP2012557155A JP2013527513A5 JP 2013527513 A5 JP2013527513 A5 JP 2013527513A5 JP 2012557155 A JP2012557155 A JP 2012557155A JP 2012557155 A JP2012557155 A JP 2012557155A JP 2013527513 A5 JP2013527513 A5 JP 2013527513A5
Authority
JP
Japan
Prior art keywords
image
foreground
background
pixels
text
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
Application number
JP2012557155A
Other languages
English (en)
Japanese (ja)
Other versions
JP5754065B2 (ja
JP2013527513A (ja
Filing date
Publication date
Priority claimed from US12/720,732 external-priority patent/US8526732B2/en
Application filed filed Critical
Publication of JP2013527513A publication Critical patent/JP2013527513A/ja
Publication of JP2013527513A5 publication Critical patent/JP2013527513A5/ja
Application granted granted Critical
Publication of JP5754065B2 publication Critical patent/JP5754065B2/ja
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

JP2012557155A 2010-03-10 2011-03-07 光学文字認識されるテキスト画像のテキスト解像度の改善方法及びシステム Active JP5754065B2 (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US12/720,732 2010-03-10
US12/720,732 US8526732B2 (en) 2010-03-10 2010-03-10 Text enhancement of a textual image undergoing optical character recognition
PCT/US2011/027439 WO2011112522A2 (en) 2010-03-10 2011-03-07 Text enhancement of a textual image undergoing optical character recognition

Publications (3)

Publication Number Publication Date
JP2013527513A JP2013527513A (ja) 2013-06-27
JP2013527513A5 true JP2013527513A5 (enExample) 2014-03-20
JP5754065B2 JP5754065B2 (ja) 2015-07-22

Family

ID=44560016

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2012557155A Active JP5754065B2 (ja) 2010-03-10 2011-03-07 光学文字認識されるテキスト画像のテキスト解像度の改善方法及びシステム

Country Status (8)

Country Link
US (1) US8526732B2 (enExample)
EP (1) EP2545499B1 (enExample)
JP (1) JP5754065B2 (enExample)
KR (1) KR101795823B1 (enExample)
CN (1) CN102782706B (enExample)
CA (1) CA2790402A1 (enExample)
ES (1) ES2773719T3 (enExample)
WO (1) WO2011112522A2 (enExample)

Families Citing this family (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11610653B2 (en) * 2010-09-01 2023-03-21 Apixio, Inc. Systems and methods for improved optical character recognition of health records
US12165754B2 (en) 2010-09-01 2024-12-10 Apixio, Llc Systems and methods for improved optical character recognition of health records
US20120106845A1 (en) * 2010-10-30 2012-05-03 Prakash Reddy Replacing word with image of word
US9064191B2 (en) 2012-01-26 2015-06-23 Qualcomm Incorporated Lower modifier detection and extraction from devanagari text images to improve OCR performance
US9053361B2 (en) * 2012-01-26 2015-06-09 Qualcomm Incorporated Identifying regions of text to merge in a natural image or video frame
US8606011B1 (en) * 2012-06-07 2013-12-10 Amazon Technologies, Inc. Adaptive thresholding for image recognition
JP2014006614A (ja) * 2012-06-22 2014-01-16 Sony Corp 画像処理装置、画像処理方法、並びにプログラム
US9076242B2 (en) 2012-07-19 2015-07-07 Qualcomm Incorporated Automatic correction of skew in natural images and video
US9047540B2 (en) 2012-07-19 2015-06-02 Qualcomm Incorporated Trellis based word decoder with reverse pass
US9262699B2 (en) 2012-07-19 2016-02-16 Qualcomm Incorporated Method of handling complex variants of words through prefix-tree based decoding for Devanagiri OCR
US9141874B2 (en) 2012-07-19 2015-09-22 Qualcomm Incorporated Feature extraction and use with a probability density function (PDF) divergence metric
US9183458B2 (en) 2012-07-19 2015-11-10 Qualcomm Incorporated Parameter selection and coarse localization of interest regions for MSER processing
US8787702B1 (en) * 2012-11-30 2014-07-22 Accusoft Corporation Methods and apparatus for determining and/or modifying image orientation
US9256798B2 (en) * 2013-01-31 2016-02-09 Aurasma Limited Document alteration based on native text analysis and OCR
GB2514410A (en) 2013-05-24 2014-11-26 Ibm Image scaling for images including low resolution text
WO2015071923A1 (ja) * 2013-11-12 2015-05-21 三菱電機株式会社 運転支援画像生成装置、運転支援画像表示装置、運転支援画像表示システム、及び運転支援画像生成プログラム
KR102159389B1 (ko) 2014-03-17 2020-09-24 삼성디스플레이 주식회사 디지털 비디오 데이터를 보정하기 위한 보정 데이터 산출방법과 이를 이용하여 생성한 룩-업 테이블을 포함하는 유기전계발광 표시장치
US9536161B1 (en) 2014-06-17 2017-01-03 Amazon Technologies, Inc. Visual and audio recognition for scene change events
CN105718926A (zh) * 2014-12-03 2016-06-29 夏普株式会社 一种文本检测的方法和装置
JP2016143310A (ja) * 2015-02-04 2016-08-08 ソニー株式会社 情報処理装置、画像処理方法及びプログラム
CN106156766B (zh) 2015-03-25 2020-02-18 阿里巴巴集团控股有限公司 文本行分类器的生成方法及装置
CN105245756B (zh) * 2015-09-28 2018-05-29 珠海奔图电子有限公司 图像处理方法及系统
US9916492B1 (en) * 2017-03-21 2018-03-13 SkySlope, Inc. Image processing and analysis for UID overlap avoidance
RU2657181C1 (ru) * 2017-09-01 2018-06-08 Общество с ограниченной ответственностью "Аби Продакшн" Способ улучшения качества распознавания отдельного кадра
CN110533049B (zh) * 2018-05-23 2023-05-02 富士通株式会社 提取印章图像的方法和装置
CN111986095B (zh) * 2019-05-22 2024-03-19 上海哔哩哔哩科技有限公司 基于边缘提取的图像处理方法及图像处理装置
CN111080554B (zh) * 2019-12-20 2023-08-04 成都极米科技股份有限公司 一种投影内容中字幕区域增强方法、装置及可读存储介质
US11205084B2 (en) * 2020-02-17 2021-12-21 Wipro Limited Method and system for evaluating an image quality for optical character recognition (OCR)
US11386687B2 (en) 2020-03-30 2022-07-12 Wipro Limited System and method for reconstructing an image
CN111507352B (zh) * 2020-04-16 2021-09-28 腾讯科技(深圳)有限公司 一种图像处理方法、装置、计算机设备以及存储介质
CN111753832B (zh) * 2020-07-02 2023-12-08 杭州睿琪软件有限公司 图像处理方法、图像处理装置、电子设备和存储介质
US11494944B2 (en) 2020-11-18 2022-11-08 Disney Enterprises, Inc. Automatic low contrast detection
US11544828B2 (en) 2020-11-18 2023-01-03 Disney Enterprises, Inc. Automatic occlusion detection
CN112906686B (zh) 2021-03-11 2024-11-15 北京小米移动软件有限公司 文字识别方法、装置、电子设备及存储介质
JP7137170B1 (ja) * 2021-03-22 2022-09-14 楽天グループ株式会社 情報処理装置、情報処理方法およびプログラム
CN113793403B (zh) * 2021-08-19 2023-09-22 西南科技大学 一种模拟绘画过程的文本合成图像方法
CN114241256B (zh) * 2021-11-30 2024-12-17 郑州信大先进技术研究院 基于神经网络的训练样本图像增强方法及系统
US11749006B2 (en) * 2021-12-15 2023-09-05 Intuit Inc. Optical character recognition quality evaluation and optimization
CN118172377B (zh) * 2022-12-09 2025-04-08 蔚来移动科技有限公司 文本的前景轮廓、水印图获取方法、系统、装置及介质
CN116071763B (zh) * 2023-03-06 2023-06-16 山东薪火书业有限公司 基于文字识别的教辅图书智能校编系统

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0256688A (ja) * 1988-08-23 1990-02-26 Toyota Central Res & Dev Lab Inc 文字切出し装置
US5513304A (en) * 1993-04-19 1996-04-30 Xerox Corporation Method and apparatus for enhanced automatic determination of text line dependent parameters
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
US5915039A (en) * 1996-11-12 1999-06-22 International Business Machines Corporation Method and means for extracting fixed-pitch characters on noisy images with complex background prior to character recognition
KR100480024B1 (ko) 1997-12-31 2005-08-01 엘지전자 주식회사 획의두께정보를이용한모음인식방법
US6301386B1 (en) * 1998-12-09 2001-10-09 Ncr Corporation Methods and apparatus for gray image based text identification
JP2002157552A (ja) * 2000-11-22 2002-05-31 Oki Electric Ind Co Ltd 光学式文字読取装置
JP2003203205A (ja) * 2002-01-08 2003-07-18 Ricoh Co Ltd 文字認識装置、文字認識方法、およびその方法をコンピュータに実行させるプログラム、並びにそのプログラムを記録したコンピュータ読み取り可能な記録媒体
US20030198386A1 (en) * 2002-04-19 2003-10-23 Huitao Luo System and method for identifying and extracting character strings from captured image data
JP4350778B2 (ja) * 2002-09-05 2009-10-21 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録媒体
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
JP2004199622A (ja) * 2002-12-20 2004-07-15 Ricoh Co Ltd 画像処理装置、画像処理方法、記録媒体およびプログラム
US7236632B2 (en) * 2003-04-11 2007-06-26 Ricoh Company, Ltd. Automated techniques for comparing contents of images
JP4259950B2 (ja) * 2003-08-08 2009-04-30 株式会社リコー 画像認識装置、画像認識プログラムおよび記録媒体
US8086050B2 (en) * 2004-08-25 2011-12-27 Ricoh Co., Ltd. Multi-resolution segmentation and fill
TWI248754B (en) * 2004-11-08 2006-02-01 Avision Inc Image acquiring device with background filtering function
US7953295B2 (en) * 2006-06-29 2011-05-31 Google Inc. Enhancing text in images
JP2008187327A (ja) 2007-01-29 2008-08-14 Sharp Corp 画像処理装置およびこれを備えた画像形成装置
US8223395B2 (en) * 2007-07-20 2012-07-17 Sharp Laboratories Of America, Inc. Methods and systems for refining text color in a digital image
US8320674B2 (en) * 2008-09-03 2012-11-27 Sony Corporation Text localization for image and video OCR

Similar Documents

Publication Publication Date Title
JP2013527513A5 (enExample)
US9336455B1 (en) Methods and apparatus for locating lines in images and using located lines to make image adjustments
JP6547386B2 (ja) 画像処理装置及び方法
EP2725520A2 (en) Method and apparatus for detecting road
JP2013500536A5 (enExample)
WO2020001149A1 (zh) 用于在深度图像中提取物体的边缘的方法、装置和计算机可读存储介质
JP2011013706A (ja) ステレオ画像処理装置およびステレオ画像処理方法
CN104573675B (zh) 作业图像的展示方法和装置
EP3213504B1 (en) Image data segmentation
JP6642970B2 (ja) 注目領域検出装置、注目領域検出方法及びプログラム
WO2016029555A1 (zh) 图像插值方法和装置
EP3526767A1 (en) Determining variance of a block of an image based on a motion vector for the block
US20120320433A1 (en) Image processing method, image processing device and scanner
US9824267B2 (en) Writing board detection and correction
JP2016194925A (ja) 道路境界物の検出方法及び装置
WO2024016632A1 (zh) 亮点定位方法、亮点定位装置、电子设备及存储介质
JP2013030183A (ja) 環境認識装置及びプログラム
CN105225218B (zh) 用于文档图像的畸变校正方法和设备
EP3014574B1 (en) Method and apparatus for specific image detection
JP5523537B2 (ja) 文書画像の行分割方法及び行分割システム
US8908994B2 (en) 2D to 3d image conversion
KR101377910B1 (ko) 화상 처리 방법 및 화상 처리 장치
JP2015153424A (ja) 文書画像処理装置及び文書画像処理方法
JP2017500662A (ja) 投影ひずみを補正するための方法及びシステム
CN101256630A (zh) 用于改善文档图像二值化性能的去噪声装置和方法