On-body input interfaces that can be used accurately without visual attention could have a wide range of applications where vision is needed for a primary task: emergency responders, pilots, astronauts, and people with vision impairments could benefit by making interfaces accessible. This paper describes a between-participant study (104 participants) to determine how well users can locate e-textile interface discrete target touch points on the forearm without visual attention. We examine whether the addition of active touch embroidery and passive touch nubs (metal snaps with vibro-tactile stimulation) helps in locating input touch points accurately. We found that touch points towards the middle of the interface on the forearm were more difficult to touch accurately than at the ends. We also found that the addition of vibro-tactile stimulation aids in the accuracy of touch interactions by over 9% on average, and by almost 17% in the middle of the interface.

可以在没有视觉注意的情况下准确使用的人体输入接口可以在主要任务需要视觉的广泛应用中使用：使接口易于使用，可以使应急人员，飞行员，宇航员和视力障碍的人受益。本文介绍了一项参与者之间的研究（104名参与者），以确定用户在没有视觉注意力的情况下如何很好地定位前臂上电子纺织界面离散目标触摸点。我们研究了添加主动触摸绣花和被动触摸小块（带有振动触觉刺激的金属按扣）是否有助于准确定位输入触摸点。我们发现，前臂接口中部的接触点比两端的接触点更难精确接触。