NormalTouch and TextureTouch: High-fidelity 3D Haptic Shape Rendering on Handheld Virtual ...
summary
Handheld controllers physically render fingertip shape and force using two designs: NormalTouch is a tiltable, extrudable platform driven by three micro-servos with 2.6 cm max extension, onboard force sensing and an 8+ hour wireless build; TextureTouch uses a 4×4 pin array (1.3 cm², 1.4 cm travel) to reproduce fine texture but is ~450 g heavier. User studies against vibration and visual-only show haptic controllers are 30–40% more accurate in depth and rate higher for perceived fidelity.
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chapters (12)
- 0:00Start
- 1:18Vibration Accurate Actuators
- 2:09Robotic Arms
- 3:34Designs for Haptic Controllers
- 6:57How Normal Touch Actually Renders Shapes
- 8:08Force Sensing
- 9:10Texture Touch
- 11:42Integration Challenges
- 12:27Dynamic Range
- 13:40Penetration Compensation
- 16:56Future Work and Limitations
- 17:59Summary
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