QoE Assessment of Human Perception of Softness in Networked Haptic Virtual Environment

In this paper, we examine human perception of softness in a networked haptic virtual environment by Quality of Experience (QoE) assessment. In our assessment, each subject bursts two balloons with different values of softness as soft objects by pushing the top of each balloon with a haptic interface device in a 3D virtual space. Then, the subject answers which balloon is softer or harder than the other. Assessment results clarify the imperceptible range and allowable range of softness difference.