NDLI: An extended analysis of discrete fourier tranform - rational dither modulation for non-white hosts

Content Provider	IEEE Xplore Digital Library
Author	Scagliola, M. Perez-Gonzalez, F. Guccione, P.
Copyright Year	2009
Description	Author affiliation: Politecnico di Bari, Dept. of Electrical and Electronic Eng., Via E. Orabona, 4 - 70125, Italy (Scagliola, M.; Guccione, P.) \|\| University of Vigo, Signal Theory and Communications Dept., E-36200, Spain (Perez-Gonzalez, F.)
Abstract	A deep analysis of discrete Fourier transform - rational dither modulation (DFT-RDM), developed to cope with linear time invariant filtering, is here presented. This study has been motivated by the significant increase of the error probability suffered by DFT-RDM for non-white hosts, in spite of the low bit-error rate achieved for white hosts under the same attack filter. The theoretical analysis of DFT-RDM has been generalized to non-white Gaussian hosts providing an explanation to the measured performance degradation. Afterwards an extension of DFT-RDM, named Whitened DFT-RDM, is proposed to achieve the same bit-error rates for white and non-white Gaussian hosts. Experimental results are also presented that validate the developed analysis and illustrate the performance enhancement provided by the proposed extension of DFT-RDM, with both non-white Gaussian signals and real audio clips.
Starting Page	146
Ending Page	150
File Size	184705
Page Count	5
File Format	PDF
ISBN	9781424452798
e-ISBN	9781424452804
DOI	10.1109/WIFS.2009.5386466
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-12-06
Publisher Place	United Kingdom
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Filtering Dither modulation Discrete Fourier transforms Bit error rate Non-white Gaussian hosts Watermarking Nonlinear filters Data hiding Decoding Data encapsulation Frequency Performance analysis Signal analysis
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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