Texture Rendering by Tuning the Frequency and Amplitude of Single Tone Vibrotactile Feedback
* Presenting author
When a finger moves on a surface of a material, textural information is perceived via the sensory receptors. Although the texture rendering is still not very clear phenomenon, it has become an emerging topic in surface haptics recently. However, it is known that even providing a single tone sinusoidal vibration on a tactile display creates considerable haptic feedback. In this study, a new method is proposed for texture rendering using a single tone vibrotactile feedback. Using an adjustment method, the subjects tuned the frequency and amplitude of single tone sinusoidal vibration on a tactile display to seek the most similar sensation for the several fabric textures. Then, second experiment is conducted to evaluate the realism ratings of the first experiment. Using a two alternative forced choise method, the subjects are asked to match the pair of textures with the pair of assigned vibratory signals. The results show that one single tone vibrotactile signal using an adjustment method can be used to distinguish the textile textures on a tactile surface.