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» Authentication of LZ-77 Compressed Data
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667views
14 years 2 months ago
Digital Systems and Media Computing Laboratory - DSMC
The Digital Systems and Media Computing Laboratory (DSMC Lab) was established in the end of 2002 and is located in Patras, Greece. DSMC operates under the School of Sciences and Te...
ICIP
2007
IEEE
13 years 11 months ago
Rotation-Independent IRIS Matching by Motion Estimation
In this paper we propose a novel method of applying motion estimation techniques to human authentication by iris matching. By exploiting the inherent differences in vector fields ...
Donald M. Monro, Soumyadip Rakshit
ICIP
2004
IEEE
14 years 6 months ago
Robust perceptual image hashing using feature points
Perceptual image hashing maps an image to a fixed length binary string based on the image's appearance to the human eye, and has applications in image indexing, authenticatio...
Vishal Monga, Brian L. Evans
ICMCS
2006
IEEE
147views Multimedia» more  ICMCS 2006»
13 years 11 months ago
A Secret Key Based Multiscale Fragile Watermark in the Wavelet Domain
The distribution of the wavelet coefficients in 2-D discrete wavelet transform (DWT) subspaces can be well described by a Gaussian mixture statistical model. In this paper, a secr...
Hua Yuan, Xiao-Ping Zhang
MMSEC
2006
ACM
195views Multimedia» more  MMSEC 2006»
13 years 11 months ago
Image annotation watermarking: nested object embedding using hypergraph model
In this paper, we introduce to the special domain of image annotation watermarking, based on embedding of hierarchical data related to objects into user-selected areas on an image...
Claus Vielhauer, Maik Schott