Focus plus context screens

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Focus plus context screens

• Patrick Baudisch

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• Hardware
• At least one hi-res display
• At least one larger low-res display
• Software
• scaling of the display content is preserved
• resolution varies

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• ltShow video segmentgt

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Focus plus context screens

• What it is
• How it works
• How to build one
• Application scenarios (video)
• The software
• Evaluation
• What we learned from practitioners (field study)
• How much faster, how much more accurate(lab
  experiment)
• Conclusions

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• How to build it?

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Setup
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Seamless integration of displays
a
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No reflections on focus screen
Focus
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• Application scenarios

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• ltShow video heregt

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• How does it work?

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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 capacitorDr. Emmett Brown,
  1985)

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Linux/VNC
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Image viewer
mouse fork
focus
ACDsee
.gif
Photo shop
scale
input
context
ACDsee
.gif
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• Evaluation

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• Field study
• Who are the potential users?
• Do they lack display space?
• What do they currently use?
• What tasks should we simulate?

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Field study
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What participants used
focus plus context screen
Available to½ of participants
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• Lab experiment
• how much faster?
• how much more accurate?
• how much more satisfying?

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Experiment 1static documents

• 3 interfaces
• focus plus context screen
• overview detail
• homogeneous
• 2 tasks
• 12 subjects from Xerox PARC
• Within subjects, counter-balanced
• Same number of pixels

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Task 1 Closest hotel
8 maps per interface FC screen and OD use same
magnification factor
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Task 2 Verify connections
Verify a different set of 24 connections on the
board
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Results
21 faster
36 faster
manually zoomingtakes time
visually switching between views is ok
but reorientation takes time
Average task completion times in seconds
(standard dev.)
visually more ambiguous
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Experiment 2Driving simulation
120 sec sequence 100 fields of nails 30 rocks
tradeoff
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Results
Error rate only 1/3 of two-monitor setup
Mean number of collisions subjects caused in the
car task (and standard deviation).
Subjects preferred thefc interface
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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

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If I had to commercialize today

• Build all-analog immersive video link
• Immersive telepresence,
• Remote operated vehicles, drones
• Immersive VR
• Remote medicine

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Publications on fc screens

• Baudisch, Good, Stewart, 2001, UIST
• Baudisch, Good, Bellotti, Schraedley, 2002,
  CHI
• Baudisch Good, 2002, CHI extended abstracts
• Baudisch Good, 2002, CHI video proceedings
• Baudisch Good, 2002, SIGGRAPH Emerging Tech.
• Bhattacharjee, March 14, 2002, New York Times

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Future work ContextWall
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Thanks to

• Michael Brueckner Nathaniel Good
• Paul Stewart, Victoria Bellotti, Pam Schraedley
• Mark Stefik, Dale McDonald, Rich Gold, RED
• Sacramento Department of Transportation, Monterey
  Bay Aquarium, NASA
• Our subjects
• Many people at PARC

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• END

• http//www.PatrickBaudisch.com

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Extra slides
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Research in user interfaces
screen space
personalization
3D
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Research in user interfaces
screen space

• drag-and-pop.
• focus plus context screens..
• peripheral awareness on handhelds
• automatic text reduction

personalization

• dynamic information filtering (Ph.D. thesis)
• paintable interfaces
• TV program recommender system TV Scout.
• user-configurable advertising banners

3D

• 3D alignment tool the CAGE..
• virtual TV studio and virtual actors
• four pointer antialiasing method (Masters)

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Further reading on fc screens

• 1 P. Baudisch, N. Good, and P. Stewart. Focus
  Plus Context Screens Combining Display
  Technology with Visualization Techniques. In
  Proceedings of UIST 01, Orlando, FL, November
  2001, pp.31-40.
• 2 P. Baudisch, N. Good, V. Bellotti, and P.
  Schraedley. Keeping Things in Context A
  Comparative Evaluation of Focus Plus Context
  Screens, Overviews, and Zooming. To appear in
  Proceedings of CHI 2002, Minneapolis, MN, April
  2002.
• 3 P. Baudisch and N. Good. Focus Plus Context
  Screens Displays for Users Working with Large
  Visual Documents. In CHI 2002 Extended Abstracts
  (Demo paper), Minneapolis, MN, April 2002.
• 4 P. Baudisch. Focus Plus Context Screens. In
  CHI 2002 Video Summaries, Minneapolis, MN, April
  2002.
• 5 P. Baudisch and N. Good. Focus Plus Context
  Screens Visual Context and Immersion on the
  Desktop. To appear at SIGGRAPH 2002 (Demo paper),
  San Antonio, TX, July 2002.
• 6 Y. Bhattacharjee. In a Seamless Image, the
  Great and Small. In The New York Times, Thursday,
  March 14, 2002.
• 7 Baudisch, Good, Stewart, 2001, 4 patents
  pending