Title
Effective Pseudonoise Sequence and Decoding Function for Imperceptibility and Robustness Enhancement in Time-Spread Echo-Based Audio Watermarking
Abstract
This paper proposes an effective pseudonoise (PN) sequence and the corresponding decoding function for time-spread echo-based audio watermarking. Different from the traditional PN sequence used in time-spread echo hiding, the proposed PN sequence has two features. Firstly, the echo kernel resulting from the new PN sequence has frequency characteristics with smaller magnitudes in perceptually significant region. This leads to higher perceptual quality. Secondly, the correlation function of the new PN sequence has three times more large peaks than that of the existing PN sequence. Based on this feature, we propose a new decoding function to improve the robustness of time-spread echo-based audio watermarking. The effectiveness of the proposed PN sequence and decoding function is illustrated by theoretical analysis, simulation examples, and listening test.
Year
DOI
Venue
2011
10.1109/TMM.2010.2080668
IEEE Transactions on Multimedia
Keywords
Field
DocType
Watermarking,Decoding,Kernel,Robustness,Encoding,Resonant frequency
Pseudorandom noise,Audio signal,Steganography,Digital watermarking,Pattern recognition,Computer science,Robustness (computer science),Artificial intelligence,Decoding methods,Encoding (memory),Autocorrelation
Journal
Volume
Issue
ISSN
13
1
1520-9210
Citations 
PageRank 
References 
23
0.87
19
Authors
4
Name
Order
Citations
PageRank
Yong Xiang1113793.92
Dezhong Peng228527.92
I. Natgunanathan3230.87
Wanlei Zhou42295189.31