Attention and Memory in Visualization › Resources › Documents › Part1... · 5/25/2011 · Overview 1. Present an overview of research on visual attention origins and advances

Attention and Memoryin Visualization

TriUPAMay 25, 2011

Christopher G. HealeyDepartment of Computer ScienceNorth Carolina State University

[email protected]://www.csc.ncsu.edu/faculty/healey

Tuesday, May 24, 2011

mailto:[email protected]

mailto:[email protected]

http://www.csc.ncsu.edu/faculty/healey

http://www.csc.ncsu.edu/faculty/healey

Overview

1. Present an overview of research on visual attention

✦ origins and advances in preattentive visual features✦ bottom-up, top-down, and combined attention models✦ feature hierarchies, ensemble coding

2. Present an overview of research on visual memory

✦ postattentive amnesia✦ change blindness✦ inattentional blindness

3. Highlight research in graphics and visualization

✦ multidimensional visualization✦ visual aesthetics and engagement


Hue Target

Absent Present

http://www.csc.ncsu.edu/faculty/healey/PP




Hue Target

Present Absent





Curvature Target

Absent Present





Conjunction Target

Present Absent





Conjunction Target

Present Absent





Orientation

Density

Length

Closure

Size

Curvature

Preattentive Features





hue Luminance Number

Intersection Terminators






Flicker Direction of Motion Velocity of Motion

Depth Direction of Lighting






Feature HierarchyIdentify orientation of boundary


Hue Boundary Shape Boundary




Ensemble CodingIdentify Which Color Has Larger Average Size

All Green Circles > All Blue Circles More Large Blue Circles


http://www.csc.ncsu.edu/faculty/healey/US_election

California voting patterns for President, Senate, House, and Governor

by Congressional district

Multidimensional Glyphs

•Method to visualize high dimensional data

✦ Data samples represented as a geometric glyphs

✦ Samples’ attribute values used to vary their glyphs’ appearance

•Human visual perception used to select “salient” properties of colour, texture, and motion

•Harness visual system’s ability to rapidly, accurately, and effortlessly perform high-level analysis tasks




January Monthly Average Temperature

Data courtesy Climatic Research Unit, University of East Anglia










