Workshop:Using Large, High-Resolution Displays

for Information Visualization

IEEE InfoVis 2005

Goals

1. How do large hi-res displays impact visualization design?

2. What are the future research directions and challenges?

Products: whitepaper for publication,Plan for next year HiRes’06

Definitions

Pixel CountPhysical Display SizePixel Density

Density = Count / Size

Resolution

Size vs. Pixel Count

Number of Pixels

Standard Monitor(1280x1024)

Standard Projector(10242x768)

3x3 Tiled Monitors(3840X3072)

IBM’s Big Bertha (3840x2400)

3 Monitors(3840x1024)

Physical Size “Focus+Context” (Mixed Density Display) Combines an LCD flat panel with a projector

GigaPixel

Schedule

1:45 Intro & Group Presentations• Virginia Tech• Microsoft Research• PNNL• Illinois at Chicago, EVL• Others boasters?

2:25 Discussion• How do large displays impact visualization design?• What are the future research directions and

challenges? 3:20 Plans for whitepaper, HiRes’06 3:45 Wrap up

5min Group Presentations

Virginia TechGigaPixel Research

Chris North, Bob Ball, Beth Yost, Tao Ni

Center for Human-Computer Interaction &Dept of Computer Science,Virginia Polytechnic Institute and State University

http://infovis.cs.vt.edu/

VT Test-Bed Facility

100-200 Mpixels, scalableReconfigurableMultiple display technologiesDiverse input devices Link to AwareLab

Potential

Personal workspaces (PowerStation)

Increased visualization scalability

Embodied interaction• Human scale• Peripheral vision, attention• Physical navigation

(eye, head, body)• Physical input• Spatial memory

Research Directions

Fundamental issues:• What is the benefit for visualization?

in terms of Perception, Navigation, Awareness• Limits of visual scalability?

Display design issues:• How big? How shaped?

Visualization design issues:• How to embed more information?

Interaction design issues:• How to point?

Initial Results

Improved visualization task performance Less virtual navigation, More physical navigation Greater awareness UI layout and mouse design changes 3D navigation

General issues

Taxonomy of displays, problems they can be applied to Multi-user, multi-input devices More information, immersive, context Overcoming Bezel distortion Task oriented pixel usage Scenario based design Managing distraction Coordination across scales System architectures, I/O rates

• Selective resolution rendering, localized to focus of attention, multi-user aware• Flash elimination in periphery• Very large datasets

Evaluation more difficult, identify comparison factors (res, size, shape…), usability Pointing: relative (mouse) vs absolute (gesture), fine vs course control 3D without head wear Form factor, size, curvature Position of users w.r.t. display, density not useful high/low, angle

• Audience vs active collaborators vs power user Task flow: center out

Visual design issues

Integrating context & detailFocus to center Localizing controls to relevant objectsNotifications