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TIFS
2008
149views more  TIFS 2008»
8 years 11 months ago
Secure Cooperation in Autonomous Mobile Ad-Hoc Networks Under Noise and Imperfect Monitoring: A Game-Theoretic Approach
In autonomous mobile ad-hoc networks, one major challenge is to stimulate cooperation among selfish nodes, especially when some nodes may be malicious. In this paper, we address co...
Wei Yu, K. J. Ray Liu
TIFS
2008
200views more  TIFS 2008»
8 years 11 months ago
Color Image Watermarking Using Multidimensional Fourier Transforms
This paper presents two vector watermarking schemes that are based on the use of complex and quaternion Fourier transforms and demonstrates, for the first time, how to embed waterm...
Tsz Kin Tsui, Xiao-Ping Zhang, Dimitrios Androutso...
TIFS
2008
109views more  TIFS 2008»
8 years 11 months ago
Lookup-Table-Based Secure Client-Side Embedding for Spread-Spectrum Watermarks
Today, mass-scale electronic content distribution systems embed forensic tracking watermarks primarily at the distribution server. For limiting the bandwidth usage and server compl...
Mehmet Utku Celik, Aweke N. Lemma, Stefan Katzenbe...
TIFS
2008
179views more  TIFS 2008»
8 years 11 months ago
Blind Identification of Source Cell-Phone Model
The various image-processing stages in a digital camera pipeline leave telltale footprints, which can be exploited as forensic signatures. These footprints consist of pixel defects...
Oya Çeliktutan, Bülent Sankur, Ismail ...
TIFS
2008
133views more  TIFS 2008»
8 years 11 months ago
Kerckhoffs-Based Embedding Security Classes for WOA Data Hiding
Abstract-- It has recently been discovered that using pseudorandom sequences as carriers in spread-spectrum techniques for data-hiding is not at all a sufficient condition for ensu...
François Cayre, Patrick Bas
TIFS
2008
113views more  TIFS 2008»
8 years 11 months ago
A Selective Feature Information Approach for Iris Image-Quality Measure
Poor quality images can significantly affect the accuracy of iris-recognition systems because they do not have enough feature information. However, existing quality measures have f...
Craig Belcher, Yingzi Du
TIFS
2008
102views more  TIFS 2008»
8 years 11 months ago
Insertion, Deletion Codes With Feature-Based Embedding: A New Paradigm for Watermark Synchronization With Applications to Speech
A framework is proposed for synchronization in feature-based data embedding systems that is tolerant of errors in estimated features. The method combines feature-based embedding wi...
David J. Coumou, Gaurav Sharma
TIFS
2008
136views more  TIFS 2008»
8 years 11 months ago
Distributed Detection of Information Flows
Abstract--Distributed detection of information flows is considered in which traffic sensors at different locations of a network observe transmission epochs. The traffic sensors com...
Ting He, Lang Tong
TIFS
2008
105views more  TIFS 2008»
8 years 11 months ago
On the Assumption of Equal Contributions in Fingerprinting
With a digital fingerprinting scheme a vendor of digital copies of copyrighted material marks each individual copy with a unique fingerprint. If an illegal copy appears, it can be ...
Hans Georg Schaathun
TIFS
2008
145views more  TIFS 2008»
8 years 11 months ago
Physical-Layer Authentication
Authentication is the process where claims of identity are verified. Most mechanisms of authentication (e.g., digital signatures and certificates) exist above the physical layer, t...
Paul L. Yu, John S. Baras, Brian M. Sadler
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