Perceptual Substitution based Haptic Texture Rendering for Narrow-Band Reproduction

Recorded high-resolution texture vibration contains perceptually redundant spectral information due to tactile limitations of human skin. Also, accurate reproduction of recorded texture vibration is often infeasible for widely available haptic reproduction systems at mobile devices. Usually, haptic...

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Bibliographic Details
Published in:IEEE transactions on haptics 2023-04, Vol.16 (2), p.1-11
Main Authors: Alma, U. Alican, Rosenkranz, Robert, Altinsoy, M. Ercan
Format: Article
Language:English
Subjects:
Actuators
Amplitudes
Cutoff frequency
Frequencies
Friction
Haptic
Haptic Interfaces
haptic perception
Haptic Technology
Haptics
Humans
Rendering
Rendering (computer graphics)
Resonant frequency
Sine waves
Skin
Texture
Touch
touch display
Touch Perception
user-centered design
Vibration
Vibrations
Vibrotactile
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Description
Summary:Recorded high-resolution texture vibration contains perceptually redundant spectral information due to tactile limitations of human skin. Also, accurate reproduction of recorded texture vibration is often infeasible for widely available haptic reproduction systems at mobile devices. Usually, haptic actuators can only reproduce narrow-bandwidth vibration. With the exception of research setups, rendering strategies need to be developed, that utilize the limited capabilities of various actuator systems and tactile receptors while minimizing a negative impact on perceived quality of reproduction. Therefore, the aim of this study is to substitute recorded texture vibrations with perceptually sufficient simple vibrations. Accordingly, similarity of band-limited noise, single sinusoid and amplitude-modulated signals on display are rated compared to real textures. Considering that low and high frequency bands of noise signals might be implausible and redundant, different combinations of cut-off frequencies are applied to noise vibrations. Moreover, suitability of amplitude-modulation signals are tested for coarse textures in addition to single sinusoids because of their capability of creating pulse-like roughness sensation without too low frequencies. With the set of experiments, narrowest band noise vibration with frequencies between 90 Hz to 400 Hz is determined according to the fine textures. Furthermore, AM vibrations are found to be more congruent than single sinusoids to reproduce too coarse textures.
ISSN:1939-1412
2329-4051
DOI:10.1109/TOH.2023.3252669