Fig. 4From: Stable haptic feedback generation for mid-air gesture interactions: a hidden Markov model-based motion synthesis approachExperimental set up. Experimental set up, and location of gesture executions. a The depth camera and the reference motion capture is shown here. The vibrotactile feedback is fed back to the user using a wristband. b The positions of stable and unstable tracking along with the distances to the depth camera attached to the HMD is shownBack to article page