Textile Fabrics' Texture: From Multi-level Feature Extraction to Tactile Simulation

In this study, the focus is put on the simulation of texture using a tactile feedback device based on ultrasonic vibrations. The textile fabrics are investigated as complex surfaces for simulation. The proposed multi-level feature extraction of the textile fabrics is based on the friction profile measured using a tribometer. Two types of sliders are used here: the first slider is an aluminum fine rigid tool to characterize the fine details of the surfaces while the second is a real finger operated to characterize the envelope of the signal. By that way, the input signals for the tactile stimulator perform the levels of characteristics. Finally, a psychophysical experiment is carried out to validate the capability to find a level of the texture amplitude which can simulate well the real fabrics textures.

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