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High-Resolution Usages

High-Resolution Usages. By Robert Ball Original Image size:3628x2357 Courtesy of NASA. Overview. Differences between large low-res. and large high-res. Different systems: 3x3 (tiled lcd) Gigapixel (tiled lcd) Smart board (projection) focus+context (lcd plus projection)

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High-Resolution Usages

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  1. High-Resolution Usages By Robert Ball Original Image size:3628x2357 Courtesy of NASA

  2. Overview • Differences between large low-res. and large high-res. • Different systems: • 3x3 (tiled lcd) • Gigapixel (tiled lcd) • Smart board (projection) • focus+context (lcd plus projection) • Viz Blocks (rear projection)

  3. 3x3 array • My actual desktop • Resoltuion: 3840x3072 (typical 17” monitor: 1280x1024) • Cost about $5,000.00 • How would you like to program on this?

  4. Gigapixel • A gigapixel = 1,000,000,000 pixels! • We currently have funding for a 0.2 gigapixel, or 200,000,000 pixels. • A typical 17” monitor has 1,310,720 pixels. • This thing is huge!

  5. LCDs (Liquid Crystal Displays) • Problems/limitations of LCDs? • What about CRTs (Cathode Ray Tube)? Going away for good. Why? • Radiation, power guzzler, refresh rate (really bad for your eyes), and space required.

  6. LCD or projection? • Which one? • Consider price and usage. With Bezels: Without Bezels:

  7. Smart Board • A rear project system that is large, but is low-res. • Ideal for presentations and teaching.

  8. Focus+Context Board • Microsoft research created this. • Combination of high and low resolution. • Has a built-in LCD screen surrounded by a projection screen.

  9. VisBlocks • Rear Projection, high resolution • Costs $8,000 per block! Displayed is 20 blocks. That is $160,000! • Dr. North is getting 12 in January. (You figure out the math.)

  10. Experiment • Research Question: Are 9 monitors always better than 1 monitor with regard to performance time no matter what image density used? • Participants: 36 people that were randomly selected. • ANOVA and post-hoc contrast analysis. • Image density:

  11. Model • People in each group: The number of monitors was a with-in subject design and the data density was a between subject design): • Latin Square:

  12. My Results - Quatitative

  13. My Results - Quanlitative • People don’t like to use the mouse. They would prefer to just look at the data. • Having very fine detail on just one monitor can make people frustrated, uncomfortable, and not convinced that there is even something to find. • Not all monitors are looked at the same amount. It depends on your height!

  14. Future Work - experiments • Insight and task based experiment on comparing one high-resolution display of geospatial data to multiple low-resolution views of the same data. • Comparing differing amounts of detail shown on visualizations and seeing who can get better performance time. Does the increased amount of detail detract from the overall structure? • Comparing different visualizations of linked data for different monitor sizes. • Comparing any of the above experiments on the 3x3 compared to the VisBlocks to see how bezels effect things.

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