基于双手键盘的虚拟现实文本输入

Text input based on two-handed keyboard in virtual environment

文字输入是虚拟现实(VR)环境中最常见的交互行为,目前主流的文字输入是通过激光瞄准的方式实现的,然而,现有方法存在诸多弊端,例如效率低、抖动大、扣动扳机容易误触发等,并不能满足VR环境下频繁输入词语的需求。因此,本文提出一种VR环境新型文字输入方式。首先,对键盘进行分区,使用手柄选择字符所在区域,辅以单词消歧算法,实现以单词为单位进行文本输入;其次,对使用者的点击坐标进行聚类分析,做一键多词处理;最后,设计出3种符合用户习惯的键盘布局,并确定出最优的布局。实验结果表明:利用该文本输入方式的最优布局速度高达13.44 WPM(Words per minute),准确率高达92.26%,相比于其他输入方式有较大提高。

Text input is the most common interaction behavior in viture reality(VR)environment,and the mainstream text input is currently realized by laser pointing. However,the existing methods have many drawbacks,such as low efficiency,large jitter,and easy false trigger,which cannot be used to frequently input text in VR environment. Therefore,a novel text input method for VR environment is proposed. First,First, partition the keyboard, use the handle to select the area where the characters are located,and use the word disambiguation algorithm to realize text input in units of words;secondly,perform cluster analysis on the user′s click coordinates to do one-key multi-word processing;Finally,three keyboard layouts that conform to user habits are designed,and the optimal layout is determined The experimental results show that the typing speed of the optimal layout is 13.44 WPM(Words Per Minute) with an accuracy of 92.26%,which is a significant improvement compared with other input methods.