BR0302330A - Método e sistema de segmentação para representação de conteúdo de rastreio múltiplo (mrc) de documentos - Google Patents

Método e sistema de segmentação para representação de conteúdo de rastreio múltiplo (mrc) de documentos

Info

Publication number
BR0302330A
BR0302330A BR0302330-3A BR0302330A BR0302330A BR 0302330 A BR0302330 A BR 0302330A BR 0302330 A BR0302330 A BR 0302330A BR 0302330 A BR0302330 A BR 0302330A
Authority
BR
Brazil
Prior art keywords
module
current pixel
image signal
mrc
image
Prior art date
Application number
BR0302330-3A
Other languages
English (en)
Other versions
BRPI0302330B1 (pt
Inventor
Donald J Curry
Doron Kettler
Asghar Nafarieh
Original Assignee
Xerox Corp
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 Xerox Corp filed Critical Xerox Corp
Publication of BR0302330A publication Critical patent/BR0302330A/pt
Publication of BRPI0302330B1 publication Critical patent/BRPI0302330B1/pt

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V10/00—Arrangements for image or video recognition or understanding
    • G06V10/40—Extraction of image or video features
    • G06V10/42—Global feature extraction by analysis of the whole pattern, e.g. using frequency domain transformations or autocorrelation
    • G06V10/421—Global feature extraction by analysis of the whole pattern, e.g. using frequency domain transformations or autocorrelation by analysing segments intersecting the pattern
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/10—Segmentation; Edge detection
    • G06T7/11—Region-based segmentation
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/10—Segmentation; Edge detection
    • G06T7/194—Segmentation; Edge detection involving foreground-background segmentation
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G06V30/162—Quantising the image signal
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V30/00—Character recognition; Recognising digital ink; Document-oriented image-based pattern recognition
    • G06V30/40—Document-oriented image-based pattern recognition
    • G06V30/41—Analysis of document content
    • G06V30/413—Classification of content, e.g. text, photographs or tables
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/10—Image acquisition modality
    • G06T2207/10004—Still image; Photographic image
    • G06T2207/10008—Still image; Photographic image from scanner, fax or copier
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/20—Special algorithmic details
    • G06T2207/20004—Adaptive image processing
    • G06T2207/20012—Locally adaptive
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/30—Subject of image; Context of image processing
    • G06T2207/30176—Document
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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)
  • Computer Vision & Pattern Recognition (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Multimedia (AREA)
  • Artificial Intelligence (AREA)
  • Compression Of Band Width Or Redundancy In Fax (AREA)
  • Image Analysis (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Color Image Communication Systems (AREA)

Abstract

"MéTODO E SISTEMA DE SEGMENTAçãO PARA REPRESENTAçãO DE CONTEúDO DE RASTREIO MúLTIPLO (MRC) DE DOCUMENTOS". A invenção refere-se a um método e um sistema para separar um sinal de imagem em um conjunto de planos de imagem. O sistema compreende um módulo min-max, um módulo de limiar dinâmico e um módulo de separação. O módulo min-max recebe o sinal de imagem, busca um mínimo e um máximo dentro de pelo menos uma janela centrada em um pixel corrente no sinal de imagem. O módulo de limiar dinâmico computa, para a janela, em função do mínimo e máximo respectivos recebidos do módulo min-max e do pixel corrente, um indicador respectivo que representa a distância e direção do pixel corrente em relação a um plano limiar respectivo, e emite um sinal de controle baseado no indicador. O módulo de separação separa o sinal de imagem no conjunto de planos de imagem de acordo com o sinal de controle pela inclusão de uma representação do pixel corrente em pelo menos um dos planos de imagem.
BRPI0302330A 2002-07-01 2003-06-30 método e sistema de segmentação para representação de conteúdo de rastreio múltiplo (mrc) de documentos BRPI0302330B1 (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10/188,249 US7031518B2 (en) 2002-07-01 2002-07-01 Segmentation method and system for Multiple Raster Content (MRC) representation of documents

Publications (2)

Publication Number Publication Date
BR0302330A true BR0302330A (pt) 2004-08-17
BRPI0302330B1 BRPI0302330B1 (pt) 2016-02-23

Family

ID=29735259

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0302330A BRPI0302330B1 (pt) 2002-07-01 2003-06-30 método e sistema de segmentação para representação de conteúdo de rastreio múltiplo (mrc) de documentos

Country Status (6)

Country Link
US (1) US7031518B2 (pt)
EP (1) EP1380992B1 (pt)
JP (1) JP4662696B2 (pt)
BR (1) BRPI0302330B1 (pt)
CA (1) CA2433307C (pt)
DE (1) DE60302946T2 (pt)

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US7375856B2 (en) * 2002-07-01 2008-05-20 Xerox Corporation Halftone screen frequency and magnitude estimation for digital descreening of documents
US7242802B2 (en) * 2002-07-01 2007-07-10 Xerox Corporation Segmentation method and system for Multiple Raster Content (MRC) representation of documents
US7324120B2 (en) 2002-07-01 2008-01-29 Xerox Corporation Segmentation method and system for scanned documents
US7456982B2 (en) * 2002-07-01 2008-11-25 Xerox Corporation Segmentation method and system for multiple raster content (MRC) representation of documents
TWI366156B (en) * 2003-07-01 2012-06-11 Xerox Corp Method and system for thinning or eroding a gray image of an input image defined by a plurality of pixels
US7365882B2 (en) 2004-02-12 2008-04-29 Xerox Corporation Halftone screen frequency and magnitude estimation for digital descreening of documents
US7401177B2 (en) 2004-04-19 2008-07-15 Sony Corporation Data storage device, data storage control apparatus, data storage control method, and data storage control program
US7379593B2 (en) * 2005-12-21 2008-05-27 Xerox Corporation Method for image segmentation from proved detection of background and text image portions
US8254680B2 (en) * 2007-01-24 2012-08-28 Samsung Electronics Co., Ltd. Apparatus and method of segmenting an image in an image coding and/or decoding system
US8014560B2 (en) * 2007-05-25 2011-09-06 Xerox Corporation Preserving scanner signature using MRC technology
JP4969320B2 (ja) * 2007-05-31 2012-07-04 セコム株式会社 画像処理装置
US7991229B2 (en) * 2007-08-28 2011-08-02 Seiko Epson Corporation Reducing compression artifacts in multi-layer images
US8218887B2 (en) 2007-09-28 2012-07-10 Abbyy Software, Ltd. Enhanced method of multilayer compression of PDF (image) files using OCR systems
US8111918B2 (en) * 2008-10-20 2012-02-07 Xerox Corporation Segmentation for three-layer mixed raster content images
US9104450B2 (en) * 2009-10-26 2015-08-11 Hewlett-Packard Development Company, L.P. Graphical user interface component classification
US8762873B2 (en) * 2009-10-26 2014-06-24 Hewlett-Packard Development Company, L.P. Graphical user interface component identification
US20110099498A1 (en) * 2009-10-26 2011-04-28 Barkol Omer Graphical user interface hierarchy generation
EP2424243B1 (en) * 2010-08-31 2017-04-05 OCT Circuit Technologies International Limited Motion estimation using integral projection
CN103577475B (zh) * 2012-08-03 2018-01-30 阿里巴巴集团控股有限公司 一种图片自动化分类方法、图片处理方法及其装置
KR102552299B1 (ko) * 2018-08-31 2023-07-10 삼성디스플레이 주식회사 잔상 보상부, 이를 포함하는 표시 장치, 및 표시 장치의 구동 방법
GB2586512B (en) * 2019-08-23 2021-12-08 Dualitas Ltd Holographic projection
CN112801090B (zh) * 2021-01-26 2026-03-31 西安万像电子科技有限公司 文字区域检测方法及装置
TWI819438B (zh) * 2021-12-21 2023-10-21 緯創資通股份有限公司 影像辨識裝置及影像辨識方法

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US5745596A (en) * 1995-05-01 1998-04-28 Xerox Corporation Method and apparatus for performing text/image segmentation
US5900953A (en) * 1997-06-17 1999-05-04 At&T Corp Method and apparatus for extracting a foreground image and a background image from a color document image
US6058214A (en) * 1998-01-20 2000-05-02 At&T Corp. Compression of partially masked still images
US6400844B1 (en) * 1998-12-02 2002-06-04 Xerox Corporation Method and apparatus for segmenting data to create mixed raster content planes
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Also Published As

Publication number Publication date
EP1380992B1 (en) 2005-12-28
BRPI0302330B1 (pt) 2016-02-23
DE60302946D1 (de) 2006-02-02
JP2004056790A (ja) 2004-02-19
DE60302946T2 (de) 2006-07-06
CA2433307C (en) 2007-01-02
JP4662696B2 (ja) 2011-03-30
EP1380992A1 (en) 2004-01-14
CA2433307A1 (en) 2004-01-01
US7031518B2 (en) 2006-04-18
US20040001625A1 (en) 2004-01-01

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Legal Events

Date Code Title Description
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]

Free format text: PRAZO DE VALIDADE: 10 (DEZ) ANOS CONTADOS A PARTIR DE 23/02/2016, OBSERVADAS AS CONDICOES LEGAIS.

B21F Lapse acc. art. 78, item iv - on non-payment of the annual fees in time
B24J Lapse because of non-payment of annual fees (definitively: art 78 iv lpi, resolution 113/2013 art. 12)