MEDIAFORENSICS
2010
13 years 2 months ago
2010
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...
MEDIAFORENSICS
2010
13 years 2 months ago
2010
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...
MEDIAFORENSICS
2010
13 years 2 months ago
2010
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...
MEDIAFORENSICS
2010
13 years 6 months ago
2010
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...
MEDIAFORENSICS
2010
13 years 6 months ago
2010
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...
MEDIAFORENSICS
2010
13 years 6 months ago
2010
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...
MEDIAFORENSICS
2010
13 years 6 months ago
2010
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...
MEDIAFORENSICS
2010
13 years 6 months ago
2010
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...
MEDIAFORENSICS
2010
13 years 6 months ago
2010
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...
MEDIAFORENSICS
2010
13 years 6 months ago
2010
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...