Figure 3
From: Blind people can actively manipulate virtual objects with a novel tactile device
(Left) The TAMO3, the tactile device used for this study. (Right-Up) Experiment scenario: the interaction with both the arrow keys and TAMO3 with the left and right hands respectively. (Right-Down) The three resolutions of the virtual environment. Left to right: 2 rows \(\times\) 2 columns, 2 rows \(\times\) 3 columns and 3 rows \(\times\) 3 columns. The environment and the objects were coloured to help the experimenter distinguish them. On the screen, the blue and the black portions are the background (with haptic height at 0mm), but objects can be moved only on black and not on blue portions; the objects are depicted in grey or white, (with haptic height at 15mm), but only white objects can be moved. The feedback from TAMO3 was the same for both objects. Fixed objects were coloured in gray, while movable ones were white and could be moved only into the black spaces.
