适于可穿戴计算机点击操作的图标尺寸研究

摘要

Twiddler和HMD是可穿戴计算机最常用的输入设备,点击绩效直接影响可穿戴计算机的可操作性和可用性.该文根据费兹原理进行点击测试,得到了大量实验数据,建立了Twiddler-HMD方式下点击绩效模型.模型表明Twiddler的操控比较困难.基于Twiddler的点击绩效模型,对信息量与平均点击时间之间的关系进行研究,结果表明当图标尺寸宽度与界面宽度的比值在1/15左右时比较适合于Twiddler-HMD方式下的点击操作.%The Twiddler and head mounted display (HMD) are the most useful input and output devices for wearable computers, the tapping performance of Twiddler directly affects the controllability and usability of wearable computers. According to Fitts's law, the model of tapping performance in the Twiddler-HMD mode is established. Based on the model of tapping performance, the relationship between average tapping time and information quantity is researched. The result shows the icon is suitable for tapping operation of the wearable computer, when the ratio of the icon size to the width of graphical user interface (GUI) reaches 1/15.