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- Publications
- Influence
Multimedia data-embedding and watermarking technologies
- M. Swanson, M. Kobayashi, A. Tewfik
- Computer Science
- 1 June 1998
We review developments in transparent data embedding and watermarking for audio, image, and video. Data-embedding and watermarking algorithms embed text, binary streams, audio, image, or video in a… Expand
A construction of a space-time code based on number theory
- M. O. Damen, A. Tewfik, J. Belfiore
- Mathematics, Computer Science
- IEEE Trans. Inf. Theory
- 1 March 2002
We construct a full data rate space-time (ST) block code over M=2 transmit antennas and T=2 symbol periods, and we prove that it achieves a transmit diversity of 2 over all constellations carved from… Expand
Digital watermarks for audio signals
- L. Boney, A. Tewfik, Khaled N. Hamdy
- Computer Science
- 8th European Signal Processing Conference…
- 17 June 1996
In this paper, we present a novel technique for embedding digital "watermarks" into digital audio signals. Watermarking is a technique used to label digital media by hiding copyright or other… Expand
Robust audio watermarking using perceptual masking
- M. Swanson, Bin B. Zhu, A. Tewfik, L. Boney
- Computer Science
- Signal Process.
- 1 May 1998
Abstract We present a watermarking procedure to embed copyright protection into digital audio by directly modifying the audio samples. Our audio-dependent watermarking procedure directly exploits… Expand
Multiresolution scene-based video watermarking using perceptual models
- M. Swanson, Bin B. Zhu, A. Tewfik
- Computer Science
- IEEE J. Sel. Areas Commun.
- 1 May 1998
We present a watermarking procedure to embed copyright protection into digital video. Our watermarking procedure is scene-based and video dependent. It directly exploits spatial masking, frequency… Expand
Geometric Invariance in image watermarking
- M. Alghoniemy, A. Tewfik
- Medicine, Computer Science
- IEEE Transactions on Image Processing
- 1 February 2004
Surviving geometric attacks in image watermarking is considered to be of great importance. In this paper, the watermark is used in an authentication context. Two solutions are being proposed for such… Expand
Distributed sensor network localization using SOCP relaxation
- S. Srirangarajan, A. Tewfik, Z. Luo
- Computer Science, Mathematics
- IEEE Transactions on Wireless Communications
- 1 December 2008
The goal of the sensor network localization problem is to determine positions of all sensor nodes in a network given certain pairwise noisy distance measurements and some anchor node positions. This… Expand
Low bit rate transparent audio compression using adapted wavelets
Describes a novel wavelet based audio synthesis and coding method. The method uses optimal adaptive wavelet selection and wavelet coefficients quantization procedures together with a dynamic… Expand
Parametrization of compactly supported orthonormal wavelets
- Hehong Zou, A. Tewfik
- Mathematics, Computer Science
- IEEE Trans. Signal Process.
- 1 March 1993
The parametrization of two-channel reconstruction quadrature mirror filter banks is extended to obtain a single characterization of discrete orthonormal wavelets. In particular, it is shown that… Expand
A binary wavelet decomposition of binary images
- M. Swanson, A. Tewfik
- Mathematics, Computer Science
- IEEE Trans. Image Process.
- 1 December 1996
We construct a theory of binary wavelet decompositions of finite binary images. The new binary wavelet transform uses simple module-2 operations. It shares many of the important characteristics of… Expand