StringTouch: A Non-occlusive 3DoF Haptic Interface Using String Structures for Modulating Finger ...

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StringTouch is a wearable fingertip frame that uses 0.2mm nylon threads pulled by three servo motors via Bowden cables to produce 3DoF skin deformations (normal, shear, angle). The prototype mounts servos at the wrist with an Arduino and springs in each tube, and a triangular string frame preserves tactile sensitivity nearly as well as bare fingers (n=12). User studies (n=12, n=12, n=10) show increased perceived weight and angle with intensity, reduced stiffness with normal pull, and >70% preference over bare fingers in proxy VR scenarios.

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" chapters (10)

1. 0:00Introduction to StringTouch
2. 0:33Motivation and challenges
3. 1:59Introducing StringTouch concept
4. 3:05Device design and materials
5. 4:58Deformation types and actuation
6. 5:46User study on tactile sensitivity
7. 7:15Active perception modulation tests
8. 9:21VR realism enhancement study
9. 10:48Conclusion and future work
10. 11:08Q&A session