853 search results - page 31 / 171 » Flexible authentication of images |
CVPR
2007
IEEE
14 years 9 months ago
2007
IEEE
Fully automatic 3D modeling from a catadioptric image sequence has rarely been addressed until now, although this is a long-standing problem for perspective images. All previous c...
FGR
2002
IEEE
14 years 17 days ago
2002
IEEE
In this paper, we present a scheme for face authentication in the presence of variations. To deal with variations, such as facial expressions and registration errors, with which t...
ICPR
2010
IEEE
13 years 5 months ago
2010
IEEE
This paper proposes a novel robust watermarking scheme to embed fingerprint minutiae into face images for multimodal biometric authentication. First, a block pyramid is layered ac...
TIFS
2008
13 years 7 months ago
2008
In this paper we analyze and analytically describe the specific statistical changes brought into the covariance structure of signal by the interpolation process. We show that inter...
ICMCS
2009
IEEE
13 years 5 months ago
2009
IEEE
Reversible or lossless data hiding enables host media to be restored from marked media without any loss of host information. However, since most of existing lossless data hiding m...