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Mouse Ether: Improving Target Acquisition Across Multiple Monitors

This research explores the challenges of target acquisition in multi-monitor setups and presents Mouse Ether, a solution that improves accuracy and speed by eliminating cursor warping and enabling direct target acquisition. A user study shows up to 28% faster acquisition with Mouse Ether.

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Mouse Ether: Improving Target Acquisition Across Multiple Monitors

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  1. mouse etherhelping users acquire targets across multimon patrick baudischmicrosoft research, visualization and interaction research ed cutrellken hinckleyrobert gruen start target

  2. tasks with incorrectvisual feedback

  3. mouse across multimonproblem 1: different dpi start target low dpi high dpi

  4. mouse across multimonproblem 2: the gap start target

  5. contents • problem: why the cursor gets warped • eliminating warping with mouse ether • calibration • user study: up to 28% faster in acquisition task • conclusions: need to test fitts’ law

  6. system oblivious of • dpi differences • system oblivious of • gaps start target why the cursor gets warped start target low dpi high dpi

  7. now users can acquire targets on direct path with mouse ether start target high dpi low dpi start target mouse ether start target low dpi high dpi start target

  8. step 1 step 2 step 3 calibration

  9. (ex,ey,) ’ ’ the math (ex,ey,) +(dx,dy) on init every frame (cx,cy) (cx,cy) ’ ’ screen i screen j

  10. off-screen travel with mouse ether start target

  11. with mouse ether start start blocked target target same dpi same dpi start target start target blocked high dpi low dpi low dpi high dpi target target start start  name ether more off-screen travel user’s perspective system’sperspective

  12. taming off-screen travel • iteration 1:restrict to convex hull • iteration 2:allow entering ether only for the purpose of transit • towards another screen • at sufficient speed • otherwise screen boundaries “hard” target start

  13. user study • 2x 18” screens • 1280x1024 and800x600 resolution • eight participants • WinFitts software • 72 movements(=4 trials x 9 paths x 2 directions)

  14. results • with mouse ether up to 28% faster Control 1800 1600 MouseEther 1400 1200 1000 Movement Time (ms ±SEM) 800 600 400 200 0 High-Low Low-High Direction of Movement

  15. conclusions • multimon offers incorrect visual cues • this hinders successful target acquisition • mouse ether improves acquisition speed by matching pointer behavior to visual cues • off-screen travel allows for direct target acquisition • future work: investigate target acquisition under contradictory visual feedback ( Fitts’ law?)

  16. thanks! • read more at • www.patrickbaudisch.com • thanks to: • mary czerwinski, george robertson, & desney tan

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