Focus plus context screens
Patrick Baudisch, Nathan Good,and Paul Stewart
UIST 2001,
November 11th 2001
• Hardware– At least one hi-res display– At least one larger low-res display
• Software– scaling of the display content is preserved– resolution varies
Contents
• 1. What it is
• 2. How it works
• 3. What it is good for (video)
• 4. Software
• 5. Evaluation and conclusions
How to build it?
Setup
Seamless integration of displays
a b
Context
No reflections on focus screen
Focus
What is it good for?
• <Show video here>
How does it work?
The scaling software
• Display image on two display units of different resolution– Similar to two-headed display– but display units are overlapping– and one of them has to be scaled down
• (Related work “Flux capacitor”[Dr. Emmett Brown, 1985])
Linux/VNC
app
focus
contextinput
server
clip
scale
viewer
viewer
Image viewer
context
Photoshop
scale
ACDsee
ACDsee
.gif
.gif
mousefork
input
focus
Evaluation
focus plus context screen VisualizationSame # of pixels
fisheye
55
overview plus detail
44
Display technology
homogeneous resolution
44wall-size, hi-res display
44
Evaluation
• Field study– 12 professionals, 2 gamers– Nobody uses overview plus detail– A list of tasks for the experiments
• 1st exp: large static documents– Task completion: 21% and 36% faster
• 2nd exp: dynamic dual attention task– Error rate only 1/3 of two-monitor setup
What we learned
• We thought:Chip designers need it
• We learned:Real strength is dynamic content– Have unexpected context information– Two monitoring tasks at the same time
Try it out!Try it out!
• Demo: Tuesday 5.15Demo: Tuesday 5.15
END
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