Toward Realism of Haptic Texture: Environment-Adaptive Vibrotactile Transformation

This paper presents the Environment-Adaptive Vibrotactile Transformation (EAVT), a novel method to enhance the realism of vibrotactile feedback in haptic rendering. Traditional texture modeling often faces discrepancies due to differences in device dynamics. EAVT addresses this by estimating and eliminating the transfer function of the recording device, thereby adapting vibrations to the rendering environment. This ensures that perceived vibrations match actual interaction forces. The method involves identifying the transfer function using test vibrations and estimating interaction forces from recorded accelerations. Simulations demonstrate high fidelity in reproducing these forces, ensuring consistent vibrotactile feedback across different devices. EAVT significantly improves texture realism and applicability, providing users with an accurate haptic experience regardless of the recording tools used.