Current virtual keyboards are known to be slower and less convenient than physical QWERTY keyboards because they simply imitate the traditional QWERTY keyboards on touchscreens. In order to improve virtual keyboards, we consider two reasonable assumptions based on the observation of skilled typists. First, the keys are already assigned to each finger for typing. Second, non-touching fingers move in correlations with the touching finger because of the intrinsic structure of human hands. Through two experiments, we verify that our assumptions are valuable for typing on virtual keyboards. Finally, we suggest a novel virtual keyboard which outperforms existing virtual keyboards.

[Related Publications]

Daewoong Choi, Hyeonjoong Cho, Kyeongeun Seo, Sangyub Lee, Jaekyu Lee, Jaejin Ko, "Designing Hand Pose Aware Virtual Keyboard with Hand Drift Tolerance", IEEE Access 7, 2019.

Daewoong Choi, Hyeonjoong Cho, J. Cheong, "Improving Virtual Keyboards When All Finger Positions Are Known", Proceedings of the 28th Annual ACM Symposium on User Interface Software & Technology. ACM, 2015.

Daewoong Choi, Hyeonjoong Cho, J. Cheong, "Toward Designing a New Virtual Keyboard When All Finger Movements Are Known", Proceedings of the 33rd Annual ACM Conference Extended Abstracts on Human Factors in Computing Systems. ACM, 2015.