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BMVC
2000
15 years 8 months ago
Gaze Determination via Images of Irises
In this paper, we present a new approach for measuring eye-gaze of human via images of the irises. Two iris contours are approximately modeled as two circles having known radii an...
Jian-Gang Wang, Eric Sung
ICIP
2003
IEEE
16 years 8 months ago
Halftone visual cryptography
This paper considers the problem of encoding a secret binary image SI into n shares of meaningful halftone images within the scheme of visual cryptography (VC). Secret pixels enco...
Z. Zhou, Gonzalo R. Arce, Giovanni Di Crescenzo
CBMS
2005
IEEE
16 years 8 days ago
Relevance Feedback for Spine X-ray Retrieval
Relevance feedback (RF) has been an active research area in Content-based Image Retrieval (CBIR). RF intends to bridge the gap between the low-level image features and the high-le...
Xiaoqian Xu, D. J. Lee, Sameer Antani, L. Rodney L...
SOUPS
2005
ACM
16 years 5 days ago
Authentication using graphical passwords: effects of tolerance and image choice
Graphical passwords are an alternative to alphanumeric passwords in which users click on images to authenticate themselves rather than type alphanumeric strings. We have developed...
Susan Wiedenbeck, Jim Waters, Jean-Camille Birget,...
APCHI
1998
IEEE
15 years 11 months ago
Eviss: A Visual System Having a Spatial Parser Generator
In this paper, a visual system Eviss is proposed. Visual systems proposed so far have been fixed on certain specifications. It is hard to make and modify such visual systems. Sinc...
Akihiro Baba, Jiro Tanaka