belly gestures: body centric gestures on the abdomen
DESCRIPTION
This is the slideshow from the talk I gave to present our research paper accepted to the NordiCHI 2014 conference.TRANSCRIPT
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
Motivation
2
On-body interaction
3
!
• Always available !
• Eyes-free interaction
• Proprioception
• Tactile feedback
Related work
4
[Harrison et al., 2010]
[Sato et al., 2012]
[Holz et al., 2012]
[Bailly et al., 2012]
Related work
5
[Serrano et al., 2014]
[Lin et al., 2011]
Related work
6
Related work
7
« Participants were most efficient with targets on the torso […] »
[Wagner et al. 2013]
Related work
8
« This would make the sternum well suited […] to be used during sports. »
[Karrer et al. 2011]
Abdomen as an interactive surface
9
Relatively large Easy access Stable Intimate
Mental spatial representation
Perception of cutaneous stimuli [Parsons & Shimojo, 1987]
!
10
11
« Without looking at your abdomen, how would you draw the number two on it
with your right hand? »
Inversion relative to vertical axisNo
No
Yes
YesIn
vers
ion
rela
tive
to h
oriz
onta
l axi
s
A B
DC
User experiment
12
• 12 users
• 2 factors: nature x presentation
• Subjective preferences questionnaire
Two
Experimental design
13
Up Up Right
Right Down Right
Down DownLeft
Left Up Left
One Two Three Four Five Six Seven Eight Nine Zero
Gra
phic
alG
raph
ical
Text
ual
Text
ual
Directional Material
Digit Material
Possible spatial representations
14
Inversion relative to vertical axisNo
No
Yes
Yes
Inve
rsio
n re
lativ
e to
hor
izon
tal a
xis
A B
DC
Possible spatial representations
15
Inversion relative to vertical axisNo
No
Yes
Yes
Inve
rsio
n re
lativ
e to
hor
izon
tal a
xis
A B
DC
Possible spatial representations
16
Inversion relative to vertical axisNo
No
Yes
Yes
Inve
rsio
n re
lativ
e to
hor
izon
tal a
xis
A B
DC
Rates of inversions relative to axes
17
Digit Direction
0.0
0.2
0.4
Graphical Textual Graphical Textual
AxisHorizontalVertical
Rates of inversions relative to axes
18
Digit Direction
0.0
0.2
0.4
Graphical Textual Graphical Textual
AxisHorizontalVertical
Rates of inversions relative to axes
19
Digit Direction
0.0
0.2
0.4
Graphical Textual Graphical Textual
AxisHorizontalVertical
Rates of inversions relative to axes
20
Digit Direction
0.0
0.2
0.4
Graphical Textual Graphical Textual
AxisHorizontalVertical
Subjective preferences
21
0
2
4
6
Easy Fast Pleasant Precise Tiring
MaterialDigitDirection
How users perform directional gestures?
22
Linearity of directional gestures
23
0.90
0.95
1.00
EAST
NORT
H EA
ST
NORT
H
NORT
H W
EST
WES
T
SOUT
H W
EST
SOUT
H
SOUT
H EA
ST
Linearity of directional gestures
24
0.90
0.95
1.00
EAST
NORT
H EA
ST
NORT
H
NORT
H W
EST
WES
T
SOUT
H W
EST
SOUT
H
SOUT
H EA
ST
Extension
Flexion
Mean directional biases of gestures
25
0
45
90
135
180
225
270
315
EASTSOUTH EASTSOUTHSOUTH WESTWESTNORTH WESTNORTHNORTH EAST
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
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