From: Enabling visually impaired people to learn three-dimensional tactile graphics with a 3DOF haptic mouse
Contour
Orientation
Contour and orientation
0 + 1
0.65
0.10
0.24
VI
1
0.52
0.18
0.29
0
0.58
0.13
0.86
0.07
BS
0.89
0.04
0.09
0.05