IN2014CN04624A - - Google Patents
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- Publication number
- IN2014CN04624A IN2014CN04624A IN4624CHN2014A IN2014CN04624A IN 2014CN04624 A IN2014CN04624 A IN 2014CN04624A IN 4624CHN2014 A IN4624CHN2014 A IN 4624CHN2014A IN 2014CN04624 A IN2014CN04624 A IN 2014CN04624A
- Authority
- IN
- India
- Prior art keywords
- bins
- connected components
- scale sets
- scale
- spatial
- Prior art date
Links
- 238000001514 detection method Methods 0.000 abstract 1
Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V20/00—Scenes; Scene-specific elements
- G06V20/60—Type of objects
- G06V20/62—Text, e.g. of license plates, overlay texts or captions on TV images
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T5/00—Image enhancement or restoration
- G06T5/40—Image enhancement or restoration using histogram techniques
-
- 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
- G06V30/18—Extraction of features or characteristics of the image
- G06V30/1801—Detecting partial patterns, e.g. edges or contours, or configurations, e.g. loops, corners, strokes or intersections
- G06V30/18076—Detecting partial patterns, e.g. edges or contours, or configurations, e.g. loops, corners, strokes or intersections by analysing connectivity, e.g. edge linking, connected component analysis or slices
-
- 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)
- Theoretical Computer Science (AREA)
- Multimedia (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Image Analysis (AREA)
- Character Input (AREA)
- Facsimile Image Signal Circuits (AREA)
- Image Processing (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/301,103 US8611662B2 (en) | 2011-11-21 | 2011-11-21 | Text detection using multi-layer connected components with histograms |
PCT/FI2012/050994 WO2013076358A1 (en) | 2011-11-21 | 2012-10-17 | Text detection using multi-layer connected components with histograms |
Publications (1)
Publication Number | Publication Date |
---|---|
IN2014CN04624A true IN2014CN04624A (ja) | 2015-09-18 |
Family
ID=48427024
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IN4624CHN2014 IN2014CN04624A (ja) | 2011-11-21 | 2012-10-17 |
Country Status (7)
Country | Link |
---|---|
US (1) | US8611662B2 (ja) |
EP (1) | EP2783328B1 (ja) |
JP (1) | JP5775225B2 (ja) |
KR (1) | KR101617681B1 (ja) |
CN (1) | CN103946866B (ja) |
IN (1) | IN2014CN04624A (ja) |
WO (1) | WO2013076358A1 (ja) |
Families Citing this family (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8731296B2 (en) * | 2011-04-21 | 2014-05-20 | Seiko Epson Corporation | Contact text detection in scanned images |
US20130194448A1 (en) | 2012-01-26 | 2013-08-01 | Qualcomm Incorporated | Rules for merging blocks of connected components in natural images |
US9064191B2 (en) | 2012-01-26 | 2015-06-23 | Qualcomm Incorporated | Lower modifier detection and extraction from devanagari text images to improve OCR performance |
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 |
US9014480B2 (en) | 2012-07-19 | 2015-04-21 | Qualcomm Incorporated | Identifying a maximally stable extremal region (MSER) in an image by skipping comparison of pixels in the region |
US9047540B2 (en) | 2012-07-19 | 2015-06-02 | Qualcomm Incorporated | Trellis based word decoder with reverse pass |
US9076242B2 (en) | 2012-07-19 | 2015-07-07 | Qualcomm Incorporated | Automatic correction of skew in natural images and video |
US9047528B1 (en) * | 2013-02-19 | 2015-06-02 | Amazon Technologies, Inc. | Identifying characters in grid-based text |
US9928572B1 (en) | 2013-12-20 | 2018-03-27 | Amazon Technologies, Inc. | Label orientation |
US9460357B2 (en) * | 2014-01-08 | 2016-10-04 | Qualcomm Incorporated | Processing text images with shadows |
US9858304B2 (en) * | 2014-04-15 | 2018-01-02 | Raytheon Company | Computing cross-correlations for sparse data |
US9183636B1 (en) * | 2014-04-16 | 2015-11-10 | I.R.I.S. | Line segmentation method |
CN104182750B (zh) * | 2014-07-14 | 2017-08-01 | 上海交通大学 | 一种在自然场景图像中基于极值连通域的中文检测方法 |
US10423858B2 (en) | 2014-07-21 | 2019-09-24 | Ent. Services Development Corporation Lp | Radial histogram matching |
US9235757B1 (en) * | 2014-07-24 | 2016-01-12 | Amazon Technologies, Inc. | Fast text detection |
CN104751147A (zh) * | 2015-04-16 | 2015-07-01 | 成都汇智远景科技有限公司 | 一种图像识别方法 |
CN104766095A (zh) * | 2015-04-16 | 2015-07-08 | 成都汇智远景科技有限公司 | 一种移动终端图像识别方法 |
US9471990B1 (en) * | 2015-10-20 | 2016-10-18 | Interra Systems, Inc. | Systems and methods for detection of burnt-in text in a video |
US10083353B2 (en) * | 2016-10-28 | 2018-09-25 | Intuit Inc. | Identifying document forms using digital fingerprints |
CN107688806B (zh) * | 2017-08-21 | 2021-04-20 | 西北工业大学 | 一种基于仿射变换的自由场景文本检测方法 |
CN108985288B (zh) * | 2018-07-17 | 2022-06-14 | 电子科技大学 | 一种基于TGMSERs的SAR图像溢油检测方法 |
CN110008950A (zh) * | 2019-03-13 | 2019-07-12 | 南京大学 | 一种对形状鲁棒的自然场景中文本检测的方法 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6413687A (en) * | 1987-07-07 | 1989-01-18 | Nec Corp | System for detecting character row |
US5920655A (en) | 1995-02-10 | 1999-07-06 | Canon Kabushiki Kaisha | Binarization image processing for multi-level image data |
JP3868654B2 (ja) * | 1998-03-27 | 2007-01-17 | 株式会社リコー | 画像処理装置 |
JP4418726B2 (ja) * | 2004-10-01 | 2010-02-24 | 日本電信電話株式会社 | 文字列探索装置、探索方法およびこの方法のプログラム |
US7570816B2 (en) | 2005-03-31 | 2009-08-04 | Microsoft Corporation | Systems and methods for detecting text |
CN100565559C (zh) * | 2007-03-14 | 2009-12-02 | 中国科学院自动化研究所 | 基于连通分量和支持向量机的图像文本定位方法和装置 |
CN101615252B (zh) * | 2008-06-25 | 2012-07-04 | 中国科学院自动化研究所 | 一种自适应图像文本信息提取方法 |
US8189917B2 (en) | 2008-09-25 | 2012-05-29 | Sharp Laboratories Of America, Inc. | Methods and systems for locating text in a digital image |
CN102163284B (zh) * | 2011-04-11 | 2013-02-27 | 西安电子科技大学 | 面向中文环境的复杂场景文本定位方法 |
-
2011
- 2011-11-21 US US13/301,103 patent/US8611662B2/en active Active
-
2012
- 2012-10-17 WO PCT/FI2012/050994 patent/WO2013076358A1/en active Application Filing
- 2012-10-17 EP EP12851984.0A patent/EP2783328B1/en not_active Not-in-force
- 2012-10-17 KR KR1020147016856A patent/KR101617681B1/ko active IP Right Grant
- 2012-10-17 CN CN201280056944.XA patent/CN103946866B/zh not_active Expired - Fee Related
- 2012-10-17 IN IN4624CHN2014 patent/IN2014CN04624A/en unknown
- 2012-10-17 JP JP2014537674A patent/JP5775225B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
WO2013076358A1 (en) | 2013-05-30 |
US8611662B2 (en) | 2013-12-17 |
CN103946866B (zh) | 2018-06-01 |
EP2783328A1 (en) | 2014-10-01 |
KR20140091762A (ko) | 2014-07-22 |
JP5775225B2 (ja) | 2015-09-09 |
KR101617681B1 (ko) | 2016-05-11 |
CN103946866A (zh) | 2014-07-23 |
JP2014531097A (ja) | 2014-11-20 |
EP2783328A4 (en) | 2016-09-28 |
US20130129216A1 (en) | 2013-05-23 |
EP2783328B1 (en) | 2018-08-22 |
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