Usability of Non-touch Interface

动作界面是一种非触摸界面，使用视频捕获图像，并根据用户的动作做出反应。它通过检查视频捕获图像中的感测区域的颜色来检测用户的动作。动作接口易于配置，具有很高的灵活性，因此它适用于各种情况。在这个项目中，一些应用程序使用的动作接口。它们是一个多用户交互游戏，纸张界面，用户检测系统，演示支持工具，和传感室。并对动作界面中视觉反馈图像的效果进行了评价。从该评估中发现，用户的身体图像对于识别到显示器上的目标图标的距离是有用的。当用户的身体图像减少了用户对手部的注意力时，一个圆形图像重叠在手部上有助于用户将注意力集中在手部上。在动作界面的单用户应用中，有合适的图标大小。在多用户应用中，更大的显示尺寸是首选。

Action Interface is a sort of non-touch interface using video captured image and makes reaction depending on the user's action. It detects user's action with checking the color of sensing region in the video captured image. Action Interface is easy to configure and has high flexibility so that it is usable and adaptable for various situations. In this project, some applications using Action Interface are introduced. They are a multiuser interaction game, a paper interface, a user detecting system, a presentation support tool, and a sensing room. Effects of the visual feedback image in Action Interface are also evaluated. From this evaluation, it is found that user's body image is useful to recognize the distance to the target icon on the display. While the user's body image reduce the user's attention on his hand, a circle image overlapped on the hand helps user to focus his attention on it. In single user application of Action Interface, there is suitable size of icon. In multiuser application, the larger display size is preferred.