Image-based Tactile Rendering Method Using Frequency Modulation under the Weber Fractions Constra...
summary
An electrovibration pipeline maps image texels to frequency-modulated square wave drive signals constrained by measured Weber fractions so rendered friction steps are just-noticeable; the team reports WF rising from 0.18 and 0.16 up to 0.35 and 0.24 below 50 Hz and remaining constant from 50–500 Hz, finds sliding speed (not texel length or voltage) alters thresholds, builds a touchscreen prototype with a custom IC, and achieves a 17.9% fidelity gain across five textures.
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chapters (8)
- 0:00Introduction and motivation
- 1:05Surface haptics concept
- 2:53Weber fractions in tactile perception
- 5:23Tactile rendering system design
- 8:14Wave fractions and key factors
- 10:00Demo and evaluation results
- 11:03Contributions and future work
- 11:48Q&A session
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