指向和轨迹任务下的笔倾斜输入  

Pen Tilt Input in Pointing and Trajectory Tasks

作　　者：李岩[1] 吴晓然 辛义忠[2] Li Yan;Wu Xiaoran;Xin Yizhong(School of Management and News Communication,Shenyang Sport University,Shenyang 110102;School of Information Science and Engineering,Shenyang University of Technology,Shenyang 110142)

机构地区：[1]沈阳体育学院管理与新闻传播学院,沈阳110102 [2]沈阳工业大学信息科学与工程学院,沈阳110142

出　　处：《计算机辅助设计与图形学学报》2020年第11期1753-1764,共12页Journal of Computer-Aided Design & Computer Graphics

基　　金：国家自然科学基金(61100091);辽宁省高等学校杰出青年学者成长计划(LJQ2012007);教育部留学回国人员科研启动基金([2013]693);沈阳工业大学青年学术骨干教师培养项目([2011]41);沈阳工业大学博士科研启动基金([2011]30).

摘　　要：针对笔输入能力有限的问题,在笔式交互中增加笔倾斜输入,并考察了指向和轨迹任务下笔倾斜输入的性能.首先,结合笔倾斜输入的特点设计了指向和轨迹2种不同类型的任务;然后通过组内重复的全因素方法设计实验,并采集笔倾斜及笔尖轨迹信息,对比考察了2种不同任务下笔倾斜输入的性能.实验结果表明,指向任务下通过倾斜笔来选择不同角间距的目标时,角间距越窄,所花费的时间越长,错误率越高,倾斜笔完成指向任务的时间与角间距及目标倾角之间呈幂指数多项式关系;轨迹任务下完成笔倾斜任务时,在运行时间和偏出轨道率方面,条形轨道比环形轨道的笔倾斜输入性能更好,在偏出倾斜容限率方面,2种轨道不存在显著差异,维持笔倾斜来完成轨迹任务在时间上符合Steering定理.最后,给出了笔倾斜输入的使用建议,对笔式界面中面向不同任务类型的笔倾斜交互设计具有指导意义.Aiming at the limitation of inferior input capacity for the pen,pen tilt input was added in pen interaction,and the pen tilt performance was investigated in pointing and trajectory tasks.First,the pointing tasks and the trajectory tasks were designed according to the characteristics of pen tilt input.Then,the pen tilt performance was investigated in the pointing and the trajectory experiments using within-subjects full factorial design with repeated measures.The results showed that the narrower tilt interval,the longer selection time was needed to accomplish the task,and the more errors were committed.There is a power exponential polynomial relationship among the selection time,the angular interval and the target tilt angle.The pen tilt performance in strip-shaped tunnels was better than that in ring-shaped tunnels for movement time and out-of-path rate.However,the pen tilt performance had no significant difference in these two types of tunnels for out-of-tilt-range rate.The completion time was verified to be in accordance with the Steering law in pen tilt trajectory tasks.Finally,the suggestion of pen tilt utilization is given,which is of guiding significance to the pen tilt interactive design for different task types in the pen-based interface.

关 键 词：笔倾斜输入 指向任务 轨迹任务 笔式交互 多通道 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]