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Gestural / Bimanual Input

Gestural / Bimanual Input. Scott Klemmer 29 November 2005. Final project papers & presentations. Final papers: 4 pages in the traditional CHI format or 6 pages in the work-in-progress format (same effective length, I suggest the latter as you can submit it to CHI WIP)

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Gestural / Bimanual Input

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  1. Gestural / Bimanual Input Scott Klemmer 29 November 2005

  2. Final project papers & presentations • Final papers: 4 pages in the traditional CHI format or 6 pages in the work-in-progress format (same effective length, I suggest the latter as you can submit it to CHI WIP) • Final presentations: 4 minutes each, followed by posters/demos • There will be outside reviewers, also folks from industry will be coming Gestural / Bimanual Input

  3. How to write a good paper • Have a clear hypothesis • Explain design ideas, system, and eval • Read your critiques of earlier work • Compare your results to 4-5 pieces of related work • scholar.google.com is a great resource Gestural / Bimanual Input

  4. Milestone 2 demo times 1:30 - Deepak Kumar and David Tu 1:40 - David Akers 1:50 - Luping May, Kevin Collins, Scott Doorley 2:00 - Malte F. Jung, Howard Kao, Ravi Teja Tiruvury, Parul Vora 2:10 - Becky Currano and Murad Akhter 2:20 - Christina Chan 2:30 - Tom Hurlbutt 2:40 - Dhyanesh Narayanan 2:50 - BREAK 3:00 - Dean Eckles, Tony Tulathimutte, Tanya Breshears 3:10 - Jonathan Effrat and May Tan 3:20 - Shailendra Rao and Abhay Sukumaran 3:30 - Adam Kahn and Doug Wightman 3:40 - Brandon Burr 3:50 - Angela Kessell and Chris Chan Gestural / Bimanual Input

  5. W D Pointing Device Evaluation • Experimental task: target acquisition • abstract, elementary, essential • Real task: interacting with GUI’s • pointing is fundamental Gestural / Bimanual Input

  6. Index of Difficulty (ID ) Index of Performance (IP ) = ID/MT (bits/s) W Bandwidth Throughput D Fitts’ Law (Paul Fitts, 1954) Task difficulty is analogous to information - execution interpreted as human rate of information processing Gestural / Bimanual Input

  7. 50 years of data Reference: MacKenzie, I. Fitts’ Law as a research and design tool in human computer interaction. Human Computer Interaction, 1992, Vol. 7, pp. 91-139 Gestural / Bimanual Input

  8. What does Fitts’ law really model? Target Width Velocity (c) (a) (b) Distance Gestural / Bimanual Input

  9. Pop-up Linear Menu Pop-up Pie Menu Today Sunday Monday Tuesday Wednesday Thursday Friday Saturday Using these law’s to predict performance Which will be faster on average? • pie menu (bigger targets & less distance)? Gestural / Bimanual Input

  10. Beyond pointing: Trajectory based tasks Gestural / Bimanual Input

  11. Gaming Fitts Law • The Macintosh menu bar and taskbar and the Windows XP Taskbar have “infinite height” improving their Fitts Law performance • …as does the back button in the Firefox browser Gestural / Bimanual Input

  12. Gestural / Bimanual Input

  13. Yves Guiard: Kinematic Chain • Asymmetry in bimanual activities • “Under standard conditions, the spontaneous writing speed of adults is reduced by some 20% when instructions prevent the non-preferred hand from manipulating the page” • Non-dominant hand (NDH) provides a frame of reference for the dominant hand (DH) • NDH operates at a course temporal and spatial scale; DH operates at a fine temporal and spatial scale Gestural / Bimanual Input

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