Effects of Haptic and Visual Senses on Angle Perception for Networked Virtual Environments

In this paper, we examine effects of haptic and visual senses on human angle perception for networked virtual environments by QoE (Quality of Experience) assessment. Each subject can touch angles in a 3D virtual space through a haptic interface device as well as watching them. By making a comparison among three cases, we clarify each effect of the two senses. One case uses only haptic sense, another case employs only visual sense, and the other case utilizes both senses. As a result, we can quantitatively confirm that the visual sense can differentiate angles more easily than the haptic sense.