关键词：用户界面；移动设备；视觉反馈
摘 要：We introduce and discuss new user interface issues raised by the advent of gesture recognitionenabled mobile devices. Compared to traditional hand gestures on touch-screens of mobile devices, the effectiveness of gesture recognition on mobile devices depends on their screen sizes, the distance between the user and the device, and how the user holds the device. Due to these user interface issues, software developers who would like to apply gesture recognition to their applications should redesign their user interfaces different from typical mobile applications. To effectively visualize feedback of a physical therapy applicatio for mKinect, the purpose of which is to bring the users Kinect experience onto their smartphones, we present a novel approach of visual feedback for a gesture recognition-enabled mobile devices.