CN1366763A - 文本检测 - Google Patents
文本检测 Download PDFInfo
- Publication number
- CN1366763A CN1366763A CN01800721A CN01800721A CN1366763A CN 1366763 A CN1366763 A CN 1366763A CN 01800721 A CN01800721 A CN 01800721A CN 01800721 A CN01800721 A CN 01800721A CN 1366763 A CN1366763 A CN 1366763A
- Authority
- CN
- China
- Prior art keywords
- text
- line
- horizontal edge
- testing result
- detector
- 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
- 238000001514 detection method Methods 0.000 title claims description 22
- 238000000034 method Methods 0.000 claims abstract description 11
- 230000003068 static effect Effects 0.000 claims description 20
- 230000001052 transient effect Effects 0.000 claims description 16
- 238000012360 testing method Methods 0.000 claims description 12
- 238000003708 edge detection Methods 0.000 abstract 3
- 230000002596 correlated effect Effects 0.000 abstract 1
- 230000008878 coupling Effects 0.000 description 10
- 238000010168 coupling process Methods 0.000 description 10
- 238000005859 coupling reaction Methods 0.000 description 10
- 238000012805 post-processing Methods 0.000 description 6
- 238000005096 rolling process Methods 0.000 description 5
- 239000013256 coordination polymer Substances 0.000 description 4
- 230000000750 progressive effect Effects 0.000 description 4
- 238000005259 measurement Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
Images
Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V10/00—Arrangements for image or video recognition or understanding
- G06V10/10—Image acquisition
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
- H04N5/445—Receiver circuitry for the reception of television signals according to analogue transmission standards for displaying additional information
- H04N5/44504—Circuit details of the additional information generator, e.g. details of the character or graphics signal generator, overlay mixing circuits
-
- 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
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V30/00—Character recognition; Recognising digital ink; Document-oriented image-based pattern recognition
- G06V30/10—Character recognition
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
- H04N21/44008—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving operations for analysing video streams, e.g. detecting features or characteristics in the video stream
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/01—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level
- H04N7/0117—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level involving conversion of the spatial resolution of the incoming video signal
- H04N7/012—Conversion between an interlaced and a progressive signal
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Computer Graphics (AREA)
- Signal Processing (AREA)
- Television Systems (AREA)
- Radar Systems Or Details Thereof (AREA)
- Picture Signal Circuits (AREA)
Abstract
Description
Claims (5)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP00201183 | 2000-03-31 | ||
EP00201183.1 | 2000-03-31 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1366763A true CN1366763A (zh) | 2002-08-28 |
CN1181668C CN1181668C (zh) | 2004-12-22 |
Family
ID=8171290
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB01800721XA Expired - Fee Related CN1181668C (zh) | 2000-03-31 | 2001-03-22 | 检测视频信号中的文本的方法和设备 |
Country Status (6)
Country | Link |
---|---|
US (1) | US6842537B2 (zh) |
EP (1) | EP1277337A2 (zh) |
JP (1) | JP2003530028A (zh) |
KR (1) | KR20020027332A (zh) |
CN (1) | CN1181668C (zh) |
WO (1) | WO2001076231A2 (zh) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100371943C (zh) * | 2004-02-18 | 2008-02-27 | 三星电子株式会社 | 检测视频文本的方法和装置 |
CN102750540A (zh) * | 2012-06-12 | 2012-10-24 | 大连理工大学 | 基于形态滤波增强的最稳定极值区视频文本检测方法 |
CN104081765A (zh) * | 2011-09-14 | 2014-10-01 | 三星电子株式会社 | 图像处理设备及其图像处理方法 |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI286026B (en) * | 2004-04-09 | 2007-08-21 | Mstar Semiconductor Inc | Method of processing fields of images and related device for data lines similarity detection |
JP2008520152A (ja) * | 2004-11-15 | 2008-06-12 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | 画像中のテキストの検出および修正 |
EP1840798A1 (en) * | 2006-03-27 | 2007-10-03 | Sony Deutschland Gmbh | Method for classifying digital image data |
US8917935B2 (en) | 2008-05-19 | 2014-12-23 | Microsoft Corporation | Detecting text using stroke width based text detection |
US8718366B2 (en) * | 2009-04-01 | 2014-05-06 | Ati Technologies Ulc | Moving text detection in video |
WO2015038749A1 (en) | 2013-09-13 | 2015-03-19 | Arris Enterprises, Inc. | Content based video content segmentation |
US9842281B2 (en) | 2014-06-05 | 2017-12-12 | Xerox Corporation | System for automated text and halftone segmentation |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2623040B1 (fr) | 1987-11-09 | 1990-02-09 | France Etat | Procede et dispositif de traitement de signaux d'image a balayage de trame entrelace |
US5138451A (en) * | 1988-10-12 | 1992-08-11 | Hitachi Ltd., Hitachi Video Engineering, Inc. | Television receiver |
JP2732650B2 (ja) | 1989-02-28 | 1998-03-30 | 株式会社東芝 | 垂直エッジ検出回路 |
KR920002274B1 (ko) * | 1989-03-30 | 1992-03-20 | 삼성전자 주식회사 | 운동 보상회로 |
GB9303369D0 (en) | 1993-02-19 | 1993-04-07 | Philips Electronics Uk Ltd | Identifying film frames in a video sequence |
US5416532A (en) * | 1993-03-17 | 1995-05-16 | Samsung Electronics Co., Ltd. | Adaptive video peaking circuitry using cross-faders |
DE4440661C2 (de) | 1993-12-08 | 1996-02-15 | Rundfunkschutzrechte Ev | Bewegungsdetektionsverfahren für ein Vollbild und Bewegungsdetektor zur Durchführung des Verfahrens |
FI97663C (fi) | 1994-06-10 | 1997-01-27 | Nokia Technology Gmbh | Menetelmä liikkeen tunnistamiseksi videosignaalista |
KR0157480B1 (ko) * | 1994-06-18 | 1998-11-16 | 김광호 | 화상처리에서 에지방향에 적응하는 휘도신호와 색신호 분리방법 및 회로 |
DE69519980T2 (de) * | 1994-12-28 | 2001-06-07 | Siemens Corp. Research, Inc. | Verfahren und Gerät zur Detektion und Interpretation von Untertiteln in digitalen Videosignalen |
US5745596A (en) * | 1995-05-01 | 1998-04-28 | Xerox Corporation | Method and apparatus for performing text/image segmentation |
US5852678A (en) * | 1996-05-30 | 1998-12-22 | Xerox Corporation | Detection and rendering of text in tinted areas |
JP3363039B2 (ja) * | 1996-08-29 | 2003-01-07 | ケイディーディーアイ株式会社 | 動画像内の移動物体検出装置 |
US5936676A (en) * | 1997-08-21 | 1999-08-10 | Miranda Technologies Inc. | Apparatus and method for line interpolating an interlaced video signal |
US6298157B1 (en) * | 1998-02-27 | 2001-10-02 | Adobe Systems Incorporated | Locating and aligning embedded images |
US6181382B1 (en) * | 1998-04-03 | 2001-01-30 | Miranda Technologies Inc. | HDTV up converter |
US6285801B1 (en) * | 1998-05-29 | 2001-09-04 | Stmicroelectronics, Inc. | Non-linear adaptive image filter for filtering noise such as blocking artifacts |
US6185329B1 (en) * | 1998-10-13 | 2001-02-06 | Hewlett-Packard Company | Automatic caption text detection and processing for digital images |
-
2001
- 2001-03-22 WO PCT/EP2001/003363 patent/WO2001076231A2/en not_active Application Discontinuation
- 2001-03-22 CN CNB01800721XA patent/CN1181668C/zh not_active Expired - Fee Related
- 2001-03-22 KR KR1020017015356A patent/KR20020027332A/ko active IP Right Grant
- 2001-03-22 EP EP01938041A patent/EP1277337A2/en not_active Withdrawn
- 2001-03-22 JP JP2001573777A patent/JP2003530028A/ja not_active Withdrawn
- 2001-03-27 US US09/817,974 patent/US6842537B2/en not_active Expired - Lifetime
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100371943C (zh) * | 2004-02-18 | 2008-02-27 | 三星电子株式会社 | 检测视频文本的方法和装置 |
CN104081765A (zh) * | 2011-09-14 | 2014-10-01 | 三星电子株式会社 | 图像处理设备及其图像处理方法 |
CN104081765B (zh) * | 2011-09-14 | 2017-02-15 | 三星电子株式会社 | 图像处理设备及其图像处理方法 |
CN102750540A (zh) * | 2012-06-12 | 2012-10-24 | 大连理工大学 | 基于形态滤波增强的最稳定极值区视频文本检测方法 |
CN102750540B (zh) * | 2012-06-12 | 2015-03-11 | 大连理工大学 | 基于形态滤波增强的最稳定极值区视频文本检测方法 |
Also Published As
Publication number | Publication date |
---|---|
JP2003530028A (ja) | 2003-10-07 |
WO2001076231A2 (en) | 2001-10-11 |
EP1277337A2 (en) | 2003-01-22 |
WO2001076231A3 (en) | 2002-01-31 |
CN1181668C (zh) | 2004-12-22 |
US6842537B2 (en) | 2005-01-11 |
KR20020027332A (ko) | 2002-04-13 |
US20010050725A1 (en) | 2001-12-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
ASS | Succession or assignment of patent right |
Owner name: IPG ELECTRONICS 503 CO., LTD. Free format text: FORMER OWNER: ROYAL PHILIPS ELECTRONICS CO., LTD. Effective date: 20090821 |
|
C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20090821 Address after: British Channel Islands Patentee after: Koninkl Philips Electronics NV Address before: Holland Ian Deho Finn Patentee before: Koninklike Philips Electronics N. V. |
|
ASS | Succession or assignment of patent right |
Owner name: FUNAI ELECTRIC CO., LTD. Free format text: FORMER OWNER: IPG ELECTRONICS 503 LIMITED Effective date: 20120523 |
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C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20120523 Address after: Osaka Japan Patentee after: Funai Electric Co., Ltd. Address before: British Channel Islands Patentee before: Koninkl Philips Electronics NV |
|
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20041222 Termination date: 20170322 |
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CF01 | Termination of patent right due to non-payment of annual fee |