layout of multiple views for volume visualization: a user study daniel lewis, steve haroz, kwan-liu...
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Layout of Multiple Views for Volume Visualization: A User Study
Daniel Lewis, Steve Haroz, Kwan-Liu Ma
University of California, Davis
Outline
Background Motivation and Problem Statement How we approached problem Study Results Conclusions
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Outline
Background Motivation and Problem Statement How we approached problem Study Results Conclusions
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Background
Limitations of 3D vis software Human-interaction important Past research:•Multiple-views
•Constraint example
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Outline
Background Motivation and Problem Statement How we approached problem Study Results Conclusions
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Motivation and Problem
Problem: Effectiveness (time) of layout flexibility for
volume visualization
Hypothesis: Constrained multiple-views best for time-
variant data
Outline
Background Motivation and Problem Statement How we approached problem Study Results Conclusions
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Layout
Simple Split
Radial Freeform
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Program
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Datasets
Outline
Motivation and Problem Statement How we approached problem Study Results Conclusions
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1st Study
Between subject Time-invariant & Time-variant w/ 2 layouts 24 participants Tutorial and practice Data sets: Brain (invariant) and Vortex (variant)
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2nd Study
Within-subject Time-variant 12 participants Tutorial and practice Tracked size of brain tumor
Outline
Motivation and Problem Statement How we approached problem Study Results Conclusions
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Between-Subject Results
Time-Invarient Brain Dataset
00:00
02:53
05:46
08:38
11:31
14:24
17:17
20:10
23:02
25:55
Simple Split Radial Freeform
Tim
e (m
in:s
ec)
Time-Varient Vortex Dataset
00:00
02:53
05:46
08:38
11:31
14:24
17:17
20:10
23:02
25:55
Simple Split Radial FreeformT
ime
(min
:sec
)
Time Invariant Time Variant
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Within-Subject Results
Within Subject Results (Time-Variant Head Dataset)
0
1
2
3
4
5
Single Split Radial Freeform
Tim
e (m
in)
Time Variant
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Time Variant Data Results
Within Subject Results (Time-Variant Head Dataset)
0
1
2
3
4
5
Single Split Radial Freeform
Tim
e (m
in)
Time-Varient Vortex Dataset
00:00
02:53
05:46
08:38
11:31
14:24
17:17
20:10
23:02
25:55
Simple Split Radial Freeform
Tim
e (m
in:s
ec)
Test 1: Between-Subject
Test 2: Within-Subject
Outline
Motivation and Problem Statement How we approached problem Study Results Conclusions
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Conclusions
Time-invariant:
NO effect on accuracy, speed, performance
Time-variant:
Multiple Views > Single View
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Conclusions
Hypothesis NOT supported
Layout flexibility does NOT effect performance
Discussion and Future Works
Benefit of flexibility offsets time spent
Future Works
•More test subjects
•More tests with specialist
•More and varied layouts
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Acknowledgement
Support: • NSF under grants IIS-0552334 • ACI-0222991
Thanks to all of our participants.
Any Questions?
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Questions
Any Questions?
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Datasets
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Program