WO2003081533A3 - Classifying pixels as natural or synthetic image content - Google Patents

Classifying pixels as natural or synthetic image content Download PDF

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Publication number
WO2003081533A3
WO2003081533A3 PCT/IB2003/001100 IB0301100W WO03081533A3 WO 2003081533 A3 WO2003081533 A3 WO 2003081533A3 IB 0301100 W IB0301100 W IB 0301100W WO 03081533 A3 WO03081533 A3 WO 03081533A3
Authority
WO
WIPO (PCT)
Prior art keywords
differentiation
natural
image content
synthetic image
matrix
Prior art date
Application number
PCT/IB2003/001100
Other languages
French (fr)
Other versions
WO2003081533A2 (en
Inventor
Matteo Marconi
Andrea Rizzi
Mario Trevisan
Original Assignee
Koninkl Philips Electronics Nv
Matteo Marconi
Andrea Rizzi
Mario Trevisan
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 Koninkl Philips Electronics Nv, Matteo Marconi, Andrea Rizzi, Mario Trevisan filed Critical Koninkl Philips Electronics Nv
Priority to JP2003579177A priority Critical patent/JP2005521169A/en
Priority to AU2003212574A priority patent/AU2003212574A1/en
Priority to EP03708399A priority patent/EP1490834A2/en
Publication of WO2003081533A2 publication Critical patent/WO2003081533A2/en
Publication of WO2003081533A3 publication Critical patent/WO2003081533A3/en

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/40—Analysis of texture
    • G06T7/41—Analysis of texture based on statistical description of texture

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Probability & Statistics with Applications (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Image Analysis (AREA)
  • Image Processing (AREA)

Abstract

Method of analyzing an image composed of a matrix of pixels, each pixel being defined by at least one parameter value arranged in a parameter matrix (Y). The method comprises the steps of performing a differentiation operation on the parameter matrix (Y) resulting in a plurality of differentiation entries (D) arranged in a matrix. Sets of neighboring differentiation entries having nearly the same differentiation entry are determined. A path length is determined for the pixels in each set, indicating a number of entries in that set. Based on the path length and differentiation entry, a pixel is classified as natural or synthetic image content.
PCT/IB2003/001100 2002-03-26 2003-03-12 Classifying pixels as natural or synthetic image content WO2003081533A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2003579177A JP2005521169A (en) 2002-03-26 2003-03-12 Analysis of an image consisting of a matrix of pixels
AU2003212574A AU2003212574A1 (en) 2002-03-26 2003-03-12 Classifying pixels as natural or synthetic image content
EP03708399A EP1490834A2 (en) 2002-03-26 2003-03-12 Classifying pixels as natural or synthetic image content

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP02076184 2002-03-26
EP02076184.7 2002-03-26

Publications (2)

Publication Number Publication Date
WO2003081533A2 WO2003081533A2 (en) 2003-10-02
WO2003081533A3 true WO2003081533A3 (en) 2004-08-26

Family

ID=28051811

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2003/001100 WO2003081533A2 (en) 2002-03-26 2003-03-12 Classifying pixels as natural or synthetic image content

Country Status (6)

Country Link
EP (1) EP1490834A2 (en)
JP (1) JP2005521169A (en)
CN (1) CN1656516A (en)
AU (1) AU2003212574A1 (en)
TW (1) TW200404268A (en)
WO (1) WO2003081533A2 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006087666A1 (en) * 2005-02-16 2006-08-24 Koninklijke Philips Electronics N.V. Method for natural content detection and natural content detector
JP4683294B2 (en) * 2006-03-16 2011-05-18 ソニー株式会社 Image processing apparatus and method, program recording medium, and program
EP2442238A1 (en) 2010-09-29 2012-04-18 Accenture Global Services Limited Processing a reusable graphic in a document
US11521378B2 (en) 2020-01-06 2022-12-06 International Business Machines Corporation Refined searching based on detected object configurations
US11366624B2 (en) 2020-03-30 2022-06-21 Kyocera Document Solutions Inc. Super-resolution convolutional neural network with gradient image detection
CN117390600B (en) * 2023-12-08 2024-02-13 中国信息通信研究院 Detection method for depth synthesis information

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
JISHENG LIANG ET AL: "Document zone classification using sizes of connected-components", PROCEEDINGS OF THE SPIE - THE INTERNATIONAL SOCIETY FOR OPTICAL ENGINEERING, 1996, SPIE-INT. SOC. OPT. ENG, USA, vol. 2660, 29 January 1996 (1996-01-29), pages 150 - 157, XP002284870, ISSN: 0277-786X *
REVANKAR S V ET AL: "Picture, graphics, and text classification of document image regions", PROC. SPIE - INT. SOC. OPT. ENG. (USA), PROCEEDINGS OF THE SPIE - THE INTERNATIONAL SOCIETY FOR OPTICAL ENGINEERING, 2001, SPIE-INT. SOC. OPT. ENG, USA, vol. 4300, 23 January 2001 (2001-01-23), pages 224 - 228, XP002284871, ISSN: 0277-786X *
ZHIGANG FAN ET AL: "Picture/graphics classification using texture features", PROC. SPIE - INT. SOC. OPT. ENG. (USA), PROCEEDINGS OF THE SPIE - THE INTERNATIONAL SOCIETY FOR OPTICAL ENGINEERING, 2001, SPIE-INT. SOC. OPT. ENG, USA, vol. 4663, 22 January 2002 (2002-01-22), pages 81 - 85, XP002284872, ISSN: 0277-786X *

Also Published As

Publication number Publication date
TW200404268A (en) 2004-03-16
EP1490834A2 (en) 2004-12-29
CN1656516A (en) 2005-08-17
WO2003081533A2 (en) 2003-10-02
AU2003212574A1 (en) 2003-10-08
JP2005521169A (en) 2005-07-14
AU2003212574A8 (en) 2003-10-08

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