TY - GEN
T1 - ScraTouch
T2 - 2020 ACM CHI Conference on Human Factors in Computing Systems, CHI EA 2020
AU - Ikematsu, Kaori
AU - Yamanaka, Shota
N1 - Publisher Copyright:
© 2020 Owner/Author.
PY - 2020/4/25
Y1 - 2020/4/25
N2 - We present ScraTouch, an interaction technique using fingernails, as a new input modality for capacitive touch surfaces. We revealed the differences between the fingertip and the nail from the viewpoint of capacitance touch sensing. Differentiating between fingertip and fingernail touches requires only tens of milliseconds worth of shunt current data from the capacitive touch sensing mechanism, thus external sensors or other hardware are unnecessary. Owing to the small amount of friction generated when a nail touches the surface, not only tapping but also touch gestures by sliding a nail can be easily performed. In our initial investigation, we confirmed that setting a simple threshold on the measured shunt current for recognition works robustly.
AB - We present ScraTouch, an interaction technique using fingernails, as a new input modality for capacitive touch surfaces. We revealed the differences between the fingertip and the nail from the viewpoint of capacitance touch sensing. Differentiating between fingertip and fingernail touches requires only tens of milliseconds worth of shunt current data from the capacitive touch sensing mechanism, thus external sensors or other hardware are unnecessary. Owing to the small amount of friction generated when a nail touches the surface, not only tapping but also touch gestures by sliding a nail can be easily performed. In our initial investigation, we confirmed that setting a simple threshold on the measured shunt current for recognition works robustly.
KW - Capacitive touch surface
KW - Fingernail
KW - Touch inputs
UR - http://www.scopus.com/inward/record.url?scp=85090239638&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85090239638&partnerID=8YFLogxK
U2 - 10.1145/3334480.3382858
DO - 10.1145/3334480.3382858
M3 - Conference contribution
AN - SCOPUS:85090239638
T3 - Conference on Human Factors in Computing Systems - Proceedings
BT - CHI EA 2020 - Extended Abstracts of the 2020 CHI Conference on Human Factors in Computing Systems
PB - Association for Computing Machinery
Y2 - 25 April 2020 through 30 April 2020
ER -