Bracelet: arms-down selection for Kinect mid-air gesture

Gesture-based interaction has become more affordable and ubiquitous as an interaction style in recent years. Since gesture-based interactions lead to fatigue and cause heaviness in upper limbs, a problem commonly known as ‘Gorilla-Arm Syndrome’ occurs. Then Bracelet is proposed, an arms-down selection method based on Kinect. Its purpose is reducing fatigue in a long mid-air gesture interaction session. An evaluation of 16 participants compared with previous methods such as mid-air gestures and other arms-down interactions showed the effectiveness of the Bracelet in reducing fatigue. As the Bracelet is helpful to alleviate fatigue in some situations where selection is intensive and has no time limit, it can be used as a ‘plug-in’ for other methods and applied for display in many public places such as airports, stations, shopping malls and waiting rooms.