An informed synchronization scheme for audio data hiding | Zendy

Alejandro Loboguerrero | Zendy; Patrick Bas | Zendy; J. Lienard | Zendy

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An informed synchronization scheme for audio data hiding

Author(s) -

Alejandro Loboguerrero,

Patrick Bas,

J. Lienard

Publication year - 2004

Publication title -

proceedings of spie, the international society for optical engineering/proceedings of spie

Language(s) - English

Resource type - Conference proceedings

SCImago Journal Rank - 0.192

H-Index - 176

eISSN - 1996-756X

pISSN - 0277-786X

DOI - 10.1117/12.526417

Subject(s) - computer science , synchronization (alternating current) , data synchronization , robustness (evolution) , coding (social sciences) , information hiding , information theory , file transfer protocol , scheme (mathematics) , theoretical computer science , artificial intelligence , mathematics , computer network , embedding , mathematical analysis , channel (broadcasting) , biochemistry , chemistry , statistics , wireless sensor network , gene , the internet , world wide web

This paper deals with the problem of synchronization in the particular case of audio data hiding. In this kind of application the goal is to increase the information of an audio data set by inserting an imperceptible message. An innovating synchronization scheme that uses informed coding theory is proposed. The goal is to realize a complementary approach from two different techniques in order to obtain an enhanced synchronization system. To that end, the analysis of the classical spread spectrum synchronization is done and this classical scheme is improved by the use of side information. Informed coding theory is presented and revisited taking into account the problem of synchronization to enable the selection of signal realizations called Feature Time Points (FTP) which are correlated with a code. Such considerations yield to the definition of informed synchronization. The proposed scheme and the definition of FTP are after presented taking into account the robustness criterion. Finally, results and comparison with classical spread spectrum synchronization schemes are presented.

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