MXPA05004253A - Sistema y metodo para decodificar imagenes digitales codificadas. - Google Patents

Sistema y metodo para decodificar imagenes digitales codificadas.

Info

Publication number
MXPA05004253A
MXPA05004253A MXPA05004253A MXPA05004253A MXPA05004253A MX PA05004253 A MXPA05004253 A MX PA05004253A MX PA05004253 A MXPA05004253 A MX PA05004253A MX PA05004253 A MXPA05004253 A MX PA05004253A MX PA05004253 A MXPA05004253 A MX PA05004253A
Authority
MX
Mexico
Prior art keywords
image
encoded image
encoding parameter
encoded images
decoding digital
Prior art date
Application number
MXPA05004253A
Other languages
English (en)
Inventor
Cvetkovic Slobodan
Original Assignee
Graphic Security Systems 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 Graphic Security Systems Corp filed Critical Graphic Security Systems Corp
Publication of MXPA05004253A publication Critical patent/MXPA05004253A/es

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T1/00—General purpose image data processing
    • G06T1/0021—Image watermarking
    • G06T1/005—Robust watermarking, e.g. average attack or collusion attack resistant
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/30—Identification or security features, e.g. for preventing forgery
    • B42D25/351—Translucent or partly translucent parts, e.g. windows
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2201/00—General purpose image data processing
    • G06T2201/005—Image watermarking
    • G06T2201/0051—Embedding of the watermark in the spatial domain
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2201/00—General purpose image data processing
    • G06T2201/005—Image watermarking
    • G06T2201/0065—Extraction of an embedded watermark; Reliable detection
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2201/00—General purpose image data processing
    • G06T2201/005—Image watermarking
    • G06T2201/0083—Image watermarking whereby only watermarked image required at decoder, e.g. source-based, blind, oblivious

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Editing Of Facsimile Originals (AREA)
  • Image Processing (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)

Abstract

Se presenta un metodo para decodificar una imagen codificada producida de una imagen principal y al menos una imagen secundaria usando al menos un parametro de codificacion. La imagen codificada se forma de tal manera que cuando se imprime la imagen codificada, la imagen secundaria no puede distinguirla un observador sin un dispositivo de decodificacion optica que tenga caracteristicas correspondientes a al menos un parametro de codificacion. El metodo comprende la obtencion de una version digital de la imagen codificada, determinando al menos un parametro de codificacion, y construyendo una imagen decodificada de la imagen codificada digital usando al menos uno de los parametros de codificacion en el conjunto de parametros de codificacion.
MXPA05004253A 2004-04-26 2005-04-21 Sistema y metodo para decodificar imagenes digitales codificadas. MXPA05004253A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US56530004P 2004-04-26 2004-04-26
US11/068,350 US7512249B2 (en) 2004-04-26 2005-02-28 System and method for decoding digital encoded images

Publications (1)

Publication Number Publication Date
MXPA05004253A true MXPA05004253A (es) 2005-10-28

Family

ID=34939494

Family Applications (1)

Application Number Title Priority Date Filing Date
MXPA05004253A MXPA05004253A (es) 2004-04-26 2005-04-21 Sistema y metodo para decodificar imagenes digitales codificadas.

Country Status (16)

Country Link
US (2) US7512249B2 (es)
EP (1) EP1591953B1 (es)
JP (1) JP4417999B2 (es)
AU (1) AU2005241434B2 (es)
BR (1) BRPI0510252A (es)
CA (1) CA2504299C (es)
DK (1) DK1591953T3 (es)
ES (1) ES2438733T3 (es)
IL (1) IL178849A0 (es)
MX (1) MXPA05004253A (es)
PL (1) PL1591953T3 (es)
PT (1) PT1591953E (es)
RU (1) RU2006141639A (es)
SI (1) SI1591953T1 (es)
WO (1) WO2005109311A2 (es)
ZA (1) ZA200608697B (es)

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Also Published As

Publication number Publication date
CA2504299A1 (en) 2005-10-26
IL178849A0 (en) 2007-03-08
PT1591953E (pt) 2013-12-24
US7561308B2 (en) 2009-07-14
WO2005109311A3 (en) 2007-08-16
AU2005241434A1 (en) 2005-11-17
JP4417999B2 (ja) 2010-02-17
JP2007535280A (ja) 2007-11-29
DK1591953T3 (da) 2014-01-20
BRPI0510252A (pt) 2007-10-23
RU2006141639A (ru) 2008-06-10
US20050237577A1 (en) 2005-10-27
PL1591953T3 (pl) 2014-04-30
ZA200608697B (en) 2008-07-30
EP1591953B1 (en) 2013-10-16
US20080088880A1 (en) 2008-04-17
EP1591953A1 (en) 2005-11-02
AU2005241434B2 (en) 2009-10-08
ES2438733T3 (es) 2014-01-20
US7512249B2 (en) 2009-03-31
SI1591953T1 (sl) 2014-02-28
CA2504299C (en) 2014-06-10
WO2005109311A2 (en) 2005-11-17

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