WO2009131424A3 - Randomly distributed watermark unit pattern and ultra high speed track video watermarking algorithm using high speed hvs operation - Google Patents

Randomly distributed watermark unit pattern and ultra high speed track video watermarking algorithm using high speed hvs operation Download PDF

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Publication number
WO2009131424A3
WO2009131424A3 PCT/KR2009/002174 KR2009002174W WO2009131424A3 WO 2009131424 A3 WO2009131424 A3 WO 2009131424A3 KR 2009002174 W KR2009002174 W KR 2009002174W WO 2009131424 A3 WO2009131424 A3 WO 2009131424A3
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WO
WIPO (PCT)
Prior art keywords
positions
high speed
frame
video frame
unit
Prior art date
Application number
PCT/KR2009/002174
Other languages
French (fr)
Korean (ko)
Other versions
WO2009131424A2 (en
Inventor
최종욱
김경순
이흥규
Original Assignee
주식회사 마크애니
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 주식회사 마크애니 filed Critical 주식회사 마크애니
Publication of WO2009131424A2 publication Critical patent/WO2009131424A2/en
Publication of WO2009131424A3 publication Critical patent/WO2009131424A3/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/91—Television signal processing therefor
    • H04N5/913—Television signal processing therefor for scrambling ; for copy protection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/91—Television signal processing therefor
    • H04N5/913—Television signal processing therefor for scrambling ; for copy protection
    • H04N2005/91307—Television signal processing therefor for scrambling ; for copy protection by adding a copy protection signal to the video signal
    • H04N2005/91335—Television signal processing therefor for scrambling ; for copy protection by adding a copy protection signal to the video signal the copy protection signal being a watermark

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Editing Of Facsimile Originals (AREA)
  • Image Processing (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Abstract

Provided are an apparatus and a method resistant to collusion attack by scattering watermark patterns over successive video frames, and enabling high speed insertion and extraction of watermark patterns.  A unit block of a watermark pattern is created for inserting a watermark pattern into a video frame as a tile structure.  The region of a video frame is divided into (m x n) unit regions having the tile structure.  In a first frame, K positions out of (m x n) positions in the unit region are randomly selected.  In a following frame, K positions that do not overlap with those randomly selected K positions are selected again.  This task is repeated for (m x n/K) successive video frames until all the positions in the (m x n) unit regions having the tile structure are selected.  For the video frame of a decoded video content, an HVS operation is performed on a frame reduced by 4 times the original video frame, to compute NVF.  Only K unit blocks of watermark patterns are inserted at randomly selected K positions of a video frame, according to the NVF.  Since only a few watermark pattern unit blocks are distributed at random positions, the operation speed is minimized, more information about content users can easily be extracted, and high resistance to collusion attack is rendered.
PCT/KR2009/002174 2008-04-25 2009-04-24 Randomly distributed watermark unit pattern and ultra high speed track video watermarking algorithm using high speed hvs operation WO2009131424A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020080038934A KR100935110B1 (en) 2008-04-25 2008-04-25 High-speed forensic video watermarking algorithm using randomly dispersed watermark unit patterns and fast hvs computation
KR10-2008-0038934 2008-04-25

Publications (2)

Publication Number Publication Date
WO2009131424A2 WO2009131424A2 (en) 2009-10-29
WO2009131424A3 true WO2009131424A3 (en) 2010-01-21

Family

ID=41217300

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2009/002174 WO2009131424A2 (en) 2008-04-25 2009-04-24 Randomly distributed watermark unit pattern and ultra high speed track video watermarking algorithm using high speed hvs operation

Country Status (2)

Country Link
KR (1) KR100935110B1 (en)
WO (1) WO2009131424A2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101520058B1 (en) * 2014-02-12 2015-05-13 금오공과대학교 산학협력단 Digital right protection method of the video stream using modulating frequency domain
US10698988B2 (en) 2017-03-30 2020-06-30 Cisco Technology, Inc. Difference attack protection
CN112380007A (en) * 2020-11-10 2021-02-19 成都华栖云科技有限公司 Method for accelerating discrimination speed of true and false ultra-high definition videos based on distributed and multi-thread

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002010191A (en) * 2000-06-19 2002-01-11 Nippon Hoso Kyokai <Nhk> Recording device with copy frequency control function
US20020090107A1 (en) * 2000-11-29 2002-07-11 Intel Corporation Method for block-based digital image watermarking
JP2005236408A (en) * 2004-02-17 2005-09-02 Toshiba Corp Device, method, and program for embedding electronic watermark, and device, method, and program for detecting electronic watermark

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20050078767A (en) * 2004-02-02 2005-08-08 삼성전자주식회사 Digital image watermarking apparatus and method

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002010191A (en) * 2000-06-19 2002-01-11 Nippon Hoso Kyokai <Nhk> Recording device with copy frequency control function
US20020090107A1 (en) * 2000-11-29 2002-07-11 Intel Corporation Method for block-based digital image watermarking
JP2005236408A (en) * 2004-02-17 2005-09-02 Toshiba Corp Device, method, and program for embedding electronic watermark, and device, method, and program for detecting electronic watermark

Also Published As

Publication number Publication date
KR20090113064A (en) 2009-10-29
KR100935110B1 (en) 2010-01-06
WO2009131424A2 (en) 2009-10-29

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