Sciweavers

75 search results - page 13 / 15
» JPEG2000-based secure image authentication
Sort
View
SP
2007
IEEE
15 years 10 months ago
The Emperor's New Security Indicators
We evaluate website authentication measures that are designed to protect users from man-in-the-middle, ‘phishing’, and other site forgery attacks. We asked 67 bank customers t...
Stuart E. Schechter, Rachna Dhamija, Andy Ozment, ...
SOUPS
2010
ACM
15 years 8 months ago
A closer look at recognition-based graphical passwords on mobile devices
Graphical password systems based on the recognition of photographs are candidates to alleviate current over-reliance on alphanumeric passwords and PINs. However, despite being bas...
Paul Dunphy, Andreas P. Heiner, N. Asokan
MMSEC
2006
ACM
195views Multimedia» more  MMSEC 2006»
15 years 10 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
ICMCS
2006
IEEE
147views Multimedia» more  ICMCS 2006»
15 years 10 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
IEEEMSP
2002
IEEE
125views Multimedia» more  IEEEMSP 2002»
15 years 9 months ago
Wireless multimedia error resilience via a data hiding technique
Abstract—Transmission of digital contents in unavoidable noiseprone environments demands sophisticated error detection and concealment techniques to restore the perceptual qualit...
Chun-Shien Lu