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MEDIAFORENSICS
2010
8 years 6 months ago
Biometric template transformation: a security analysis
One of the critical steps in designing a secure biometric system is protecting the templates of the users that are stored either in a central database or on smart cards. If a biom...
Abhishek Nagar, Karthik Nandakumar, Anil K. Jain
MEDIAFORENSICS
2010
8 years 6 months ago
On the embedding capacity of DNA strands under substitution, insertion, and deletion mutations
A number of methods have been proposed over the last decade for embedding information within deoxyribonucleic acid (DNA). Since a DNA sequence is conceptually equivalent to a unid...
Félix Balado
MEDIAFORENSICS
2010
8 years 6 months ago
Image dependent log-likelihood ratio allocation for repeat accumulate code-based decoding in data hiding channels
Error correction codes of suitable redundancy are used for ensuring perfect data recovery in noisy channels. For iterative decoding based methods, the decoder needs to be initiali...
Anindya Sarkar, B. S. Manjunath
MEDIAFORENSICS
2010
8 years 10 months ago
Image forensic analyses that elude the human visual system
While historically we may have been overly trusting of photographs, in recent years there has been a backlash of sorts and the authenticity of photographs is now routinely questio...
Hany Farid, Mary J. Bravo
MEDIAFORENSICS
2010
8 years 10 months ago
Fast identification of highly distorted images
In this paper, we consider a low complexity identification system for highly distorted images. The performance of the proposed identification system is analyzed based on the avera...
Taras Holotyak, Sviatoslav Voloshynovskiy, Fokko B...
MEDIAFORENSICS
2010
8 years 10 months ago
Better security levels for broken arrows
This paper considers the security aspect of the robust zero-bit watermarking technique `Broken Arrows'(BA),1 which was invented and tested for the international challenge BOW...
Fuchun Xie, Teddy Furon, Caroline Fontaine
MEDIAFORENSICS
2010
8 years 10 months ago
On detection of median filtering in digital images
In digital image forensics, it is generally accepted that intentional manipulations of the image content are most critical and hence numerous forensic methods focus on the detecti...
Matthias Kirchner, Jessica J. Fridrich
MEDIAFORENSICS
2010
8 years 10 months ago
Improving re-sampling detection by adding noise
Current image re-sampling detectors can reliably detect re-sampling in JPEG images only up to a Quality Factor (QF) of 95 or higher. At lower QFs, periodic JPEG blocking artifacts...
Lakshmanan Nataraj, Anindya Sarkar, B. S. Manjunat...
MEDIAFORENSICS
2010
8 years 10 months ago
Efficient estimation of CFA pattern configuration in digital camera images
This paper proposes an efficient method to determine the concrete configuration of the color filter array (CFA) from demosaiced images. This is useful to decrease the degrees of f...
Matthias Kirchner
MEDIAFORENSICS
2010
8 years 10 months ago
Texture based attacks on intrinsic signature based printer identification
Several methods exist for printer identification from a printed document. We have developed a system that performs printer identification using intrinsic signatures of the printer...
Aravind K. Mikkilineni, Nitin Khanna, Edward J. De...
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