Global Patent Index - EP 1317809 A4

EP 1317809 A4 20050518 - METHOD AND SYSTEM FOR STEGANOGRAPHICALLY EMBEDDING INFORMATION BITS IN SOURCE SIGNALS

Title (en)

METHOD AND SYSTEM FOR STEGANOGRAPHICALLY EMBEDDING INFORMATION BITS IN SOURCE SIGNALS

Title (de)

VERFAHREN UND VORRICHTUNG ZUR STEGANOGRAPHISCHEN EINBETTUNG EINER INFORMATION IN QUELLENSIGNALEN

Title (fr)

PROCEDE ET SYSTEME D'INTEGRATION STEGANOGRAPHIQUE DE BITS D'INFORMATION DANS DES SIGNAUX SOURCES

Publication

EP 1317809 A4 20050518 (EN)

Application

EP 01956130 A 20010802

Priority

  • US 0124468 W 20010802
  • US 63450600 A 20000809

Abstract (en)

[origin: WO0213436A1] A method and system for embedding (E) information bits in a source signal (A) like images, audio or video. The embedding being performed optimally for a given worst-case scenario of unintentional or intentional attack of the host signal (to remove the embedded bits), and a given distortion of the host signal due to information embedding.

IPC 1-7

H04K 1/02

IPC 8 full level

H04N 1/387 (2006.01); G06T 1/00 (2006.01); G09C 5/00 (2006.01); H04L 9/06 (2006.01); H04N 1/32 (2006.01); H04N 7/26 (2006.01)

CPC (source: EP)

G06T 1/005 (2013.01); H04N 1/32144 (2013.01); H04N 1/32154 (2013.01); H04N 1/3232 (2013.01); H04N 19/467 (2014.11); H04N 21/23892 (2013.01); H04N 21/8358 (2013.01); G06T 2201/0065 (2013.01); G06T 2201/0083 (2013.01)

Citation (search report)

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

DOCDB simple family (publication)

WO 0213436 A1 20020214; AU 7816301 A 20020218; EP 1317809 A1 20030611; EP 1317809 A4 20050518; JP 2004506379 A 20040226

DOCDB simple family (application)

US 0124468 W 20010802; AU 7816301 A 20010802; EP 01956130 A 20010802; JP 2002518669 A 20010802