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USS
2008
15 years 9 months ago
Multi-flow Attacks Against Network Flow Watermarking Schemes
We analyze several recent schemes for watermarking network flows based on splitting the flow into intervals. We show that this approach creates time dependent correlations that en...
Negar Kiyavash, Amir Houmansadr, Nikita Borisov
JVCIR
2008
92views more  JVCIR 2008»
15 years 6 months ago
Hardware implementation of a disparity estimation scheme for real-time compression in 3D imaging applications
This paper presents a novel hardware implementation of a disparity estimation scheme targeted to real-time Integral Photography (IP) image and video sequence compression. The soft...
Dionisis Chaikalis, Nikos Sgouros, Dimitris Maroul...
ITIIS
2010
191views more  ITIIS 2010»
15 years 5 months ago
Cooperative Multi-relay Scheme for Secondary Spectrum Access
In this paper, we propose a cooperative multi-relay scheme for a secondary system to achieve spectrum access along with a primary system. In the primary network, a primary transmi...
Tran Trung Duy, Hyung Yun Kong
JSCIC
2010
178views more  JSCIC 2010»
15 years 1 months ago
A Compact Fourth Order Scheme for the Helmholtz Equation in Polar Coordinates
In many problems, one wishes to solve the Helmholtz equation in cylindrical or spherical coordinates which introduces variable coefficients within the differentiated terms. Fourth ...
S. Britt, S. Tsynkov, Eli Turkel
ICASSP
2011
IEEE
14 years 10 months ago
Exploiting an interplay between norms to analyze scalar quantization schemes
Quantization is intrinsic to several data acquisition systems. This process is especially important in distributed settings, where observations must rst be compressed before they ...
Parimal Parag, Jean-François Chamberland