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Belly gestures: Body Centric Gestures on the Abdomen

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This is the slideshow from the talk I gave to present our research paper accepted to the NordiCHI 2014 conference.

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Belly gestures: Body Centric Gestures on the Abdomen

  1. 1. Belly Gestures: Body Centric Gestures on the Abdomen Dong-Bach Vo 1,2, Eric Lecolinet 2, Yves Guiard 2 1 University of Glasgow, United Kingdom 2 Télécom Paristech, France
  2. 2. Motivation 2
  3. 3. On-body interaction 3 ! • Always available ! • Eyes-free interaction • Proprioception • Tactile feedback
  4. 4. Related work 4 [Harrison et al., 2010] [Sato et al., 2012] [Bailly et al., 2012] [Holz et al., 2012]
  5. 5. Related work 5 [Serrano et al., 2014] [Lin et al., 2011]
  6. 6. Related work 6
  7. 7. Related work 7 « Participants were most efficient with targets on the torso […] » [Wagner et al. 2013]
  8. 8. Related work 8 « This would make the sternum well suited […] to be used during sports. » [Karrer et al. 2011]
  9. 9. Abdomen as an interactive surface 9 Relatively large Easy access Stable Intimate
  10. 10. Mental spatial representation Perception of cutaneous stimuli [Parsons & Shimojo, 1987] ! 10
  11. 11. 11 « Without looking at your abdomen, how would you draw the number two on it with your right hand? »
  12. 12. User experiment Inversion relative to vertical axis No Yes No Yes Inversion relative to horizontal axis A B C D 12 Two • 12 users • 2 factors: nature x presentation • Subjective preferences questionnaire
  13. 13. Experimental design 13 Up Up Right Right Down Right Down Down Left Left Up Left One Two Three Four Five Six Seven Eight Nine Zero Textual Graphical Textual Graphical Directional Material Digit Material
  14. 14. Possible spatial representations 14 Inversion relative to vertical axis No Yes No Yes Inversion relative to horizontal axis A B C D
  15. 15. Possible spatial representations 15 Inversion relative to vertical axis No Yes No Yes Inversion relative to horizontal axis A B C D
  16. 16. Possible spatial representations 16 Inversion relative to vertical axis No Yes No Yes Inversion relative to horizontal axis A B C D
  17. 17. Rates of inversions relative to axes 17 Digit Direction 0.4 0.2 0.0 Graphical Textual Graphical Textual Axis Horizontal Vertical
  18. 18. Rates of inversions relative to axes 18 Digit Direction 0.4 0.2 0.0 Graphical Textual Graphical Textual Axis Horizontal Vertical
  19. 19. Rates of inversions relative to axes 19 Digit Direction 0.4 0.2 0.0 Graphical Textual Graphical Textual Axis Horizontal Vertical
  20. 20. Rates of inversions relative to axes 20 Digit Direction 0.4 0.2 0.0 Graphical Textual Graphical Textual Axis Horizontal Vertical
  21. 21. Subjective preferences 21 6 4 2 0 Easy Fast Pleasant Precise Tiring Material Digit Direction
  22. 22. How users perform directional gestures? 22
  23. 23. Linearity of directional gestures 23 1.00 0.95 0.90 EAST NORTH EAST NORTH NORTH WEST WEST SOUTH WEST SOUTH SOUTH EAST
  24. 24. Linearity of directional gestures 24 1.00 0.95 0.90 EAST NORTH EAST NORTH NORTH WEST WEST SOUTH WEST SOUTH SOUTH EAST Extension Flexion
  25. 25. Mean directional biases of gestures 25 0 45 90 135 180 225 270 315 EAST SOUTH EAST SOUTH SOUTH WEST WEST NORTH WEST NORTH NORTH EAST
  26. 26. Design recommendations • Favor directional gestures when possible ! • Provide to users means to select up/down direction preferences ! • Favor rotation invariant symbols for complex gestures ! • Gesture design should take into account efforts to move the arm 26
  27. 27. Thank you 27 Belly Gestures: Body Centric Gestures on the Abdomen Dong-Bach Vo 1,2, Eric Lecolinet 2, Yves Guiard 2 1 University of Glasgow, United Kingdom 2 Télécom Paristech, France dong-bach.vo@glasgow.ac.uk

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