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CHI
2010
ACM
15 years 4 months ago
Input precision for gaze-based graphical passwords
Click-based graphical passwords have been proposed as alternatives to text-based passwords, despite being potentially vulnerable to shoulder-surfing, where an attacker can learn p...
Alain Forget, Sonia Chiasson, Robert Biddle
ISWC
2002
IEEE
15 years 2 months ago
Mediated Reality Using Computer Graphics Hardware for Computer Vision
Wearable, camera based, head–tracking systems use spatial image registration algorithms to align images taken as the wearer gazes around their environment. This allows for compu...
James Fung, Felix Tang, Steve Mann
CHI
2009
ACM
15 years 10 months ago
Sizing the horizon: the effects of chart size and layering on the graphical perception of time series visualizations
We investigate techniques for visualizing time series data and evaluate their effect in value comparison tasks. We compare line charts with horizon graphs--a space-efficient time ...
Jeffrey Heer, Nicholas Kong, Maneesh Agrawala
CGF
2008
120views more  CGF 2008»
14 years 9 months ago
COPERNICUS: Context-Preserving Engine for Route Navigation with Interactive User-modifiable Scaling
In this paper, we present an automated system for generating context-preserving route maps that depict navigation routes as a path between nodes and edges inside a topographic net...
Hartmut Ziegler, Daniel A. Keim
CHI
2010
ACM
15 years 4 months ago
Crowdsourcing graphical perception: using mechanical turk to assess visualization design
Understanding perception is critical to effective visualization design. With its low cost and scalability, crowdsourcing presents an attractive option for evaluating the large des...
Jeffrey Heer, Michael Bostock