27 search results - page 1 / 6 » Localization and security enhancement of block-based image a... |
ICIP
2005
IEEE
14 years 6 months ago
2005
IEEE
Most block-based image authentication techniques that are presented in the literature sacrifice localization accuracy in order to resist vector quantization (VQ) counterfeiting att...
ICIAR
2010
Springer
13 years 9 months ago
2010
Springer
Two-factor authentication has been introduced in order to enhance security in authentication systems. Different factors have been introduced, which are combined for means of contr...
ICIP
2001
IEEE
14 years 5 months ago
2001
IEEE
In this paper we investigate the image authentication system SARI, proposed by C.Y. Lin and S.F. Chang [1], that distinguishes JPEG compression from malicious manipulations. In pa...
FGR
2004
IEEE
13 years 8 months ago
2004
IEEE
This paper presents a complete face authentication system integrating 2D intensity and 3D range data, based on a low-cost, real-time structured light sensor. Novel algorithms are ...
ICIP
2001
IEEE
14 years 5 months ago
2001
IEEE
Several fragile watermarking schemes presented in the literature are either vulnerable to vector quantization (VQ) counterfeiting attacks or sacrifice localization accuracy to imp...