Analysis of a patchwork-based audio watermarking scheme
Contribuinte(s) |
[Unknown] |
---|---|
Data(s) |
01/01/2013
|
Resumo |
Recently, a patchwork-based audio watermarking scheme has been proposed in [1], which embeds watermarks by modifying the means of absolute-valued discrete cosine transform (DCT) coefficients corresponding to suitable fragments. This audio watermarking scheme is more robust to common attacks than the existing counterparts. In this paper, we presents a detailed analysis of this audio watermarking scheme. We first derive a probability density function (pdf) of a random variable corresponding to the mean of an absolute-valued DCT fragment. Then, based on the obtained pdf, we show how watermarking parameters affect the performance of the concerned audio watermarking scheme. The analysis result provides a guideline for the selection of watermarking parameters. The effectiveness of our analysis is verified by simulations using a large number of real-world audio segments. |
Identificador | |
Idioma(s) |
eng |
Publicador |
IEEE |
Relação |
http://dro.deakin.edu.au/eserv/DU:30057157/evid-conficiearvwgnrl-2013.pdf http://dro.deakin.edu.au/eserv/DU:30057157/natgunanathan-analysisofa-2013.pdf http://doi.org/10.1109/ICIEA.2013.6566495 |
Direitos |
2013, IEEE |
Palavras-Chave | #audio watermarking #probability density function #patchwork #generalized Gaussian distribution |
Tipo |
Conference Paper |