TY - GEN
T1 - Presenting sharp surface shapes using overlapped vibrotactile stimuli
AU - Sakurai, Tatsuma
AU - Konyo, Masashi
AU - Tadokoro, Satoshi
PY - 2012/12/1
Y1 - 2012/12/1
N2 - Previous surface shape presenting methods had difficulties in generating high-density tactile information owing to blurriness in tactile images caused by lateral skin deformations. In this study, a new surface shape presenting method is proposed, and it employs overlapping small-amplitude vibrations instead of a single vibration. This method represents the mechanism of stationary boundary contacts (SBCs), a vibrotactile sensitivity enhancement method proposed in a previous research. A series of psychophysical experiments showed that the vibrations overlapping method can significantly enhance the human vibrotactile sensitivity and lead to the production of sharp tactile images. Moreover, the stimuli intensity can be controlled not only by changing the vibration amplitudes but also by changing the phase deviations between vibrations; this enables the presentation of various surface shape patterns that cannot be presented by using the previous SBC method alone.
AB - Previous surface shape presenting methods had difficulties in generating high-density tactile information owing to blurriness in tactile images caused by lateral skin deformations. In this study, a new surface shape presenting method is proposed, and it employs overlapping small-amplitude vibrations instead of a single vibration. This method represents the mechanism of stationary boundary contacts (SBCs), a vibrotactile sensitivity enhancement method proposed in a previous research. A series of psychophysical experiments showed that the vibrations overlapping method can significantly enhance the human vibrotactile sensitivity and lead to the production of sharp tactile images. Moreover, the stimuli intensity can be controlled not only by changing the vibration amplitudes but also by changing the phase deviations between vibrations; this enables the presentation of various surface shape patterns that cannot be presented by using the previous SBC method alone.
UR - http://www.scopus.com/inward/record.url?scp=84872350698&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84872350698&partnerID=8YFLogxK
U2 - 10.1109/IROS.2012.6385975
DO - 10.1109/IROS.2012.6385975
M3 - Conference contribution
AN - SCOPUS:84872350698
SN - 9781467317375
T3 - IEEE International Conference on Intelligent Robots and Systems
SP - 3300
EP - 3307
BT - 2012 IEEE/RSJ International Conference on Intelligent Robots and Systems, IROS 2012
T2 - 25th IEEE/RSJ International Conference on Robotics and Intelligent Systems, IROS 2012
Y2 - 7 October 2012 through 12 October 2012
ER -