一种利用拇指控制的触屏手机虚拟键盘按键提取方法

通过分析现有触屏手机虚拟键盘的按键提取方法及拇指的生理活动特性,提出一种新的虚拟键盘按键提取方法。该方法结合提示框显示触摸点周围的按键信息,在首次点击错误的情况下采用滑动分析方法再次选择正确的目标按键。这样,在降低错误按键选择率的基础上还保证了正确按键选择的输入速度。理论分析和实验结果表明,这种方法有效解决了在目标按键密度较大且按键面积较小的情况下,使用拇指选择按键所带来的覆盖性问题和定位模糊问题。

Thumb Controlled Key Extraction Method of Virtual Keyboard for Touch-Screen Mobile

Through analysis of existing key extraction methods of virtual keyboard for touch-screen mobile and physiological characteristics of thumb, a new extraction method of virtual keyboard was proposed. This method combines prompt box shows the information of buttons around the touch points, In the case of the first click has failed to acquire the target key, it use the sliding analysis to get the right target key. In this way, the error rate of the key selection was reduced and the speed of the correct choice was guaranteed. Theoretical analysis and experimental results show that this approach resolved the problem of Coverage and location ambiguity which was caused by using thumb to acquire the target key when the density of the target button is great and the button size is relatively small.