WO2007052142A3 - Region-based transform domain video scrambling - Google Patents

Region-based transform domain video scrambling Download PDF

Info

Publication number
WO2007052142A3
WO2007052142A3 PCT/IB2006/003100 IB2006003100W WO2007052142A3 WO 2007052142 A3 WO2007052142 A3 WO 2007052142A3 IB 2006003100 W IB2006003100 W IB 2006003100W WO 2007052142 A3 WO2007052142 A3 WO 2007052142A3
Authority
WO
WIPO (PCT)
Prior art keywords
interest
video
regions
scrambled
region
Prior art date
Application number
PCT/IB2006/003100
Other languages
French (fr)
Other versions
WO2007052142A2 (en
Inventor
Touradj Ebrahimi
Frederic Albert Dufaux
Original Assignee
Emitall Surveillance S A
Touradj Ebrahimi
Frederic Albert Dufaux
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
Priority claimed from PCT/IB2006/002083 external-priority patent/WO2007015133A2/en
Application filed by Emitall Surveillance S A, Touradj Ebrahimi, Frederic Albert Dufaux filed Critical Emitall Surveillance S A
Priority to CA002628203A priority Critical patent/CA2628203A1/en
Priority to US12/066,165 priority patent/US20090067626A1/en
Priority to EP06809178A priority patent/EP1946559A2/en
Publication of WO2007052142A2 publication Critical patent/WO2007052142A2/en
Publication of WO2007052142A3 publication Critical patent/WO2007052142A3/en
Priority to IL190073A priority patent/IL190073A0/en

Links

Classifications

    • 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]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/234—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs
    • H04N21/2347—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving video stream encryption
    • H04N21/23476—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving video stream encryption by partially encrypting, e.g. encrypting the ending portion of a movie
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
    • H04N19/129—Scanning of coding units, e.g. zig-zag scan of transform coefficients or flexible macroblock ordering [FMO]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
    • H04N19/17—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
    • H04N19/18—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being a set of transform coefficients
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/20—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using video object coding
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
    • H04N19/61—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding in combination with predictive coding

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)

Abstract

A video communication system, for example, video surveillance and video conferencing, is disclosed in which regions of interest of video scenes are scrambled to protect privacy and/or allow anonymous participation. The regions of interest may be arbitrary and selectable by the participant or user, such as the face of the participant. Initially, the video content is analyzed to locate an arbitrary shape of interest, such as a human face or part of a human body. Once the region of interest is located, it is scrambled, for example, in conjunction with two well known video coding schemes; MPEG-4 and Motion JPEG-2000. The arbitrary regions can be scrambled in the transform-domain during coding and reversibly encrypted to allow authorized users to decrypt and decode the regions of interest.
PCT/IB2006/003100 2005-11-04 2006-11-02 Region-based transform domain video scrambling WO2007052142A2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CA002628203A CA2628203A1 (en) 2005-11-04 2006-11-02 Region-based transform domain video scrambling
US12/066,165 US20090067626A1 (en) 2005-11-04 2006-11-02 Region-based transform domain video scrambling
EP06809178A EP1946559A2 (en) 2005-11-04 2006-11-02 Region-based transform domain video scrambling
IL190073A IL190073A0 (en) 2005-11-04 2008-03-11 Region-based transform domain video scrambling

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US59702805P 2005-11-04 2005-11-04
US60/597,028 2005-11-04
PCT/IB2006/002083 WO2007015133A2 (en) 2005-08-01 2006-07-31 Scrambling for anonymous visual communication
IBPCT/IB2005/002083 2006-07-31

Publications (2)

Publication Number Publication Date
WO2007052142A2 WO2007052142A2 (en) 2007-05-10
WO2007052142A3 true WO2007052142A3 (en) 2007-08-09

Family

ID=37918952

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2006/003100 WO2007052142A2 (en) 2005-11-04 2006-11-02 Region-based transform domain video scrambling

Country Status (3)

Country Link
EP (1) EP1946559A2 (en)
CA (1) CA2628203A1 (en)
WO (1) WO2007052142A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2932046B1 (en) * 2008-06-03 2010-08-20 Thales Sa METHOD AND SYSTEM FOR VISUALLY CRYPTING MOBILE OBJECTS WITHIN A COMPRESSED VIDEO STREAM
FR2932045B1 (en) 2008-06-03 2010-08-20 Thales Sa METHOD AND SYSTEM FOR PROTECTING THE DATA CONFIDENTIALITY OF A VIDEO STREAM DURING ITS TRANSMISSION

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000031964A1 (en) * 1998-11-20 2000-06-02 Telefonaktiebolaget Lm Ericsson (Publ) A method and a device for encryption of images
JP2002305704A (en) * 2001-04-05 2002-10-18 Canon Inc Image recording system and method

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000031964A1 (en) * 1998-11-20 2000-06-02 Telefonaktiebolaget Lm Ericsson (Publ) A method and a device for encryption of images
JP2002305704A (en) * 2001-04-05 2002-10-18 Canon Inc Image recording system and method

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
DUFAUX, F. AND EBRAHIMI, T.: "Smart Video Surveillance System Preserving Privacy", IMAGE AND VIDEO COMMUNICATIONS AND PROCESSING, vol. 5685, March 2005 (2005-03-01), pages 54 - 63, XP002430633, Retrieved from the Internet <URL:http://spiedl.aip.org/getpdf/servlet/GetPDFServlet?filetype=pdf&id=PSISDG005685000001000054000001&idtype=cvips&prog=normal> [retrieved on 20070423] *
See also references of EP1946559A2 *

Also Published As

Publication number Publication date
EP1946559A2 (en) 2008-07-23
WO2007052142A2 (en) 2007-05-10
CA2628203A1 (en) 2007-05-10

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