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Visual Queries: The foundation of visual thinking. Colin Ware Data Visualization Research Lab University of New Hampshire. Designing with cyborgs in mind. Change Blindness. Simons and Levin. Vogel Woodman and Luck. Capacity of visual working memory 3 simple shapes.
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Visual Queries:The foundation of visual thinking Colin Ware Data Visualization Research Lab University of New Hampshire Designing with cyborgs in mind
Change Blindness Simons and Levin
Vogel Woodman and Luck • Capacity of visual working memory 3 simple shapes
Central Problem: How do we perceivethe world in all its rich detail? • Only detail in fovea • Only a small amount of Information in visual working memory.
Solution • “The world is its own memory” O’Regan • Task-related active vision • “What you see is what you need” • Treish et al. (2003) • Seeing is a process that helps us solve problems
Visualizations are much better databases than what we have in our heads
Stage 2 Pattern perceptionVisual queries are executed by finding patterns in displays Attentional Demands Tune the pattern finding processes Top down meets bottom up
Eye movements • Two or three a second • Preserves Context • We seek patterns
ME Graph Constellation
Why visualize? • Human Memory: 100 meg (Landauer) = 108(not unique) • World information: 1 exabyte/year • = 1018 (unique) • = 108 bytes new information per person per year • Conclusion: we are cognitive cyborgs – our memories are not in our heads.
Why do we care about perception? • It is about what makes information display effective. • Can there be a science of visualization? • Evaluation
Visualizations • Maps • Route • Flow • Thematic (geology, vegetation, etc) • Multi-dimensional Discrete • Multi-dimensional continuous • Graphs • Social Networks • Flow • Narrative – explaining data • Animations, assembly diagrams • Other thinking tools • Calendars, Planners, search engines, News pages, Design tools
Understanding surface shape Victoria Interrante
GeoZui4D Linked Windows Tide Aware Show GeoNav
Flow visualization • How do we optimally display vector fields?
Length - 420 ft 16,000 Tons • Beam – 82 ft 30,000 HP • Draft – 29 ft Diesel Elec AC/AC • Fuel – 1,165,000 gal Top Speed – 17kts • Ice Breaking – 4.5 ft @ 3 kts
CAVE • Head tracking – stereo • Resolution problems • Light scattering problems • Vergence focus problem for near object • Occlusion problems for near objects
Immersion VR • HMD + head tracking • Data glove
Capacity of visual working memory (Vogal, Woodman, Luck, 2001) • Task – change detection • Can see 3.3 objects • Each object can be complex 1 second
Dual Processing OBJECT FILES “Nexus” Dog