NO20080016L - Geometrisk bildetransformasjon basert pa tekstlinjesoking - Google Patents

Geometrisk bildetransformasjon basert pa tekstlinjesoking

Info

Publication number
NO20080016L
NO20080016L NO20080016A NO20080016A NO20080016L NO 20080016 L NO20080016 L NO 20080016L NO 20080016 A NO20080016 A NO 20080016A NO 20080016 A NO20080016 A NO 20080016A NO 20080016 L NO20080016 L NO 20080016L
Authority
NO
Norway
Prior art keywords
text line
line searching
image transformation
transformation based
geometric image
Prior art date
Application number
NO20080016A
Other languages
English (en)
Inventor
Mats Stefan Carlin
Knut Tharald Fosseide
Hans Christian Meyer
Original Assignee
Lumex As
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Lumex As filed Critical Lumex As
Priority to NO20080016A priority Critical patent/NO20080016L/no
Publication of NO20080016L publication Critical patent/NO20080016L/no

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
    • G06V30/14—Image acquisition
    • G06V30/146—Aligning or centring of the image pick-up or image-field
    • G06V30/1475—Inclination or skew detection or correction of characters or of image to be recognised
    • G06V30/1478—Inclination or skew detection or correction of characters or of image to be recognised of characters or characters lines
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T3/00—Geometric image transformations in the plane of the image
    • G06T3/06—Topological mapping of higher dimensional structures onto lower dimensional surfaces
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T5/00—Image enhancement or restoration
    • G06T5/80—Geometric correction
    • 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
    • G06V30/16—Image preprocessing
    • G06V30/166—Normalisation of pattern dimensions
    • 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
    • G06V30/22—Character recognition characterised by the type of writing
    • G06V30/224—Character recognition characterised by the type of writing of printed characters having additional code marks or containing code marks
    • 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)
  • Computer Vision & Pattern Recognition (AREA)
  • Multimedia (AREA)
  • Character Input (AREA)
  • Character Discrimination (AREA)
  • Geometry (AREA)
  • Image Analysis (AREA)

Abstract

Foreliggende oppfinnelse gir en fremgangsmåte, system og/eller et digitalt kamera som gir en geometrisk transformasjon av deformerte bilder av dokumenter irmbefattende tekst, ved tekstlinjesøking, som resulterer i et bilde irmbefattende parallelle tekstlinjer. Det transformerte bildet ble gitt som en irmgang til et OCR-program enten kjørende i et datamaskinsystem eller i et prosesseringselement irmbefattet i det digitale kameraet.
NO20080016A 2005-06-02 2008-01-02 Geometrisk bildetransformasjon basert pa tekstlinjesoking NO20080016L (no)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NO20080016A NO20080016L (no) 2005-06-02 2008-01-02 Geometrisk bildetransformasjon basert pa tekstlinjesoking

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
NO20052656A NO20052656D0 (no) 2005-06-02 2005-06-02 Geometrisk bildetransformasjon basert pa tekstlinjesoking
PCT/NO2006/000189 WO2006130012A1 (en) 2005-06-02 2006-05-19 Method, system, digital camera and asic for geometric image transformation based on text line searching
NO20080016A NO20080016L (no) 2005-06-02 2008-01-02 Geometrisk bildetransformasjon basert pa tekstlinjesoking

Publications (1)

Publication Number Publication Date
NO20080016L true NO20080016L (no) 2008-01-02

Family

ID=35295256

Family Applications (2)

Application Number Title Priority Date Filing Date
NO20052656A NO20052656D0 (no) 2005-06-02 2005-06-02 Geometrisk bildetransformasjon basert pa tekstlinjesoking
NO20080016A NO20080016L (no) 2005-06-02 2008-01-02 Geometrisk bildetransformasjon basert pa tekstlinjesoking

Family Applications Before (1)

Application Number Title Priority Date Filing Date
NO20052656A NO20052656D0 (no) 2005-06-02 2005-06-02 Geometrisk bildetransformasjon basert pa tekstlinjesoking

Country Status (8)

Country Link
US (2) US9036912B2 (no)
EP (1) EP1949303B1 (no)
AU (1) AU2006253155B2 (no)
CA (1) CA2610214A1 (no)
IL (1) IL187777A0 (no)
NO (2) NO20052656D0 (no)
RU (1) RU2412482C2 (no)
WO (1) WO2006130012A1 (no)

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US8285077B2 (en) * 2008-07-15 2012-10-09 Nuance Communications, Inc. Automatic correction of digital image distortion
US20110299775A1 (en) * 2010-06-08 2011-12-08 International Business Machines Corporation Correcting page curl in scanned books
US8774558B2 (en) * 2010-11-29 2014-07-08 Microsoft Corporation Rectification of characters and text as transform invariant low-rank textures
US8818132B2 (en) 2010-11-29 2014-08-26 Microsoft Corporation Camera calibration with lens distortion from low-rank textures
US9167124B2 (en) 2012-07-27 2015-10-20 The Neat Company, Inc. Portable document scanner having user interface and integrated communication means
KR102082301B1 (ko) * 2013-09-30 2020-02-27 삼성전자주식회사 카메라로 촬영한 문서 영상을 스캔 문서 영상으로 변환하기 위한 방법, 장치 및 컴퓨터 판독 가능한 기록 매체
EP3079837B1 (en) 2013-12-12 2023-02-08 Koninklijke Philips N.V. Monolithically integrated three electrode cmut device
US8897600B1 (en) * 2013-12-20 2014-11-25 I.R.I.S. Method and system for determining vanishing point candidates for projective correction
US8811751B1 (en) * 2013-12-20 2014-08-19 I.R.I.S. Method and system for correcting projective distortions with elimination steps on multiple levels
US8913836B1 (en) * 2013-12-20 2014-12-16 I.R.I.S. Method and system for correcting projective distortions using eigenpoints
WO2015092059A1 (en) * 2013-12-20 2015-06-25 I.R.I.S. Method and system for correcting projective distortions.
FR3027136B1 (fr) * 2014-10-10 2017-11-10 Morpho Procede d'identification d'un signe sur un document deforme
WO2016069005A1 (en) 2014-10-31 2016-05-06 Hewlett-Packard Development Company, L.P. Text line detection
US10503997B2 (en) 2016-06-22 2019-12-10 Abbyy Production Llc Method and subsystem for identifying document subimages within digital images
US10366469B2 (en) * 2016-06-28 2019-07-30 Abbyy Production Llc Method and system that efficiently prepares text images for optical-character recognition
RU2636097C1 (ru) * 2016-12-06 2017-11-20 Общество с ограниченной ответственностью "Аби Девелопмент" Способ и система эффективной подготовки содержащих текст изображений к оптическому распознаванию символов
RU2628266C1 (ru) * 2016-07-15 2017-08-15 Общество с ограниченной ответственностью "Аби Девелопмент" Способ и система подготовки содержащих текст изображений к оптическому распознаванию символов
RU2632427C1 (ru) 2016-12-09 2017-10-04 Общество с ограниченной ответственностью "Аби Девелопмент" Оптимизация обмена данными между клиентским устройством и сервером
JP6949596B2 (ja) * 2017-07-20 2021-10-13 東芝テック株式会社 商品データ処理装置及び商品データ処理プログラム
CN111199224B (zh) * 2018-11-20 2023-06-23 中国电信股份有限公司 弯曲文字识别方法和装置
US10970578B2 (en) * 2019-02-07 2021-04-06 Johnson Controls Fire Protection LP System and method for extracting information from a non-planar surface

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Also Published As

Publication number Publication date
EP1949303A1 (en) 2008-07-30
US9036912B2 (en) 2015-05-19
IL187777A0 (en) 2008-08-07
EP1949303B1 (en) 2012-08-01
US9600870B2 (en) 2017-03-21
US20090016606A1 (en) 2009-01-15
RU2412482C2 (ru) 2011-02-20
AU2006253155A1 (en) 2006-12-07
US20150243005A1 (en) 2015-08-27
CA2610214A1 (en) 2006-12-07
AU2006253155B2 (en) 2012-04-12
RU2007149518A (ru) 2009-07-20
WO2006130012A1 (en) 2006-12-07
NO20052656D0 (no) 2005-06-02

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