Error exponents for one-bit watermarking

Author

Liu, Tie ; Moulin, Pierre

Author_Institution

Beckman Inst. for Adv. Sci. & Technol., Illinois Univ., Urbana, IL, USA

Volume

3

fYear

2003

fDate

6-10 April 2003

Abstract

Quantization index modulation (QIM) is a powerful host-interference rejecting method for data hiding. The paper applies QIM to one-bit watermarking and proposes a simple but powerful watermark detector. We derive lower bounds on the error exponents for the detector under a quadratic distortion constraint for the watermarker and additive white Gaussian noise attacks. These bounds are independent of the host-signal distribution and are substantially better than recently derived bounds for public (blind) spread-spectrum watermarking.

Keywords

AWGN; data encapsulation; interference suppression; modulation; nonlinear distortion; quantisation (signal); signal processing; watermarking; additive white Gaussian noise; data hiding; error exponent lower bounds; error exponents; host-interference rejection; host-signal distribution; one-bit watermarking; quadratic distortion; quantization index modulation; spread-spectrum watermarking; watermark detector; Covariance matrix; Data encapsulation; Detectors; Interference; Mathematical model; Quantization; Spread spectrum communication; Testing; Tin; Watermarking;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech, and Signal Processing, 2003. Proceedings. (ICASSP '03). 2003 IEEE International Conference on

ISSN

1520-6149

Print_ISBN

0-7803-7663-3

Type

conf

DOI

10.1109/ICASSP.2003.1199108

Filename

1199108