Uploaded March 2018 | Updated September 2026, 9 hours ago

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Skin-based touch input opens up new opportunities for direct,
subtle, and expressive interaction. However, existing skinworn
sensors are restricted to single-touch input and limited
by a low resolution. We present the first skin overlay that can
capture high-resolution multi-touch input. Our main contributions
are: 1) Based on an exploration of functional materials,
we present a fabrication approach for printing thin and flexible
multi-touch sensors for on-skin interactions. 2) We present
the first non-rectangular multi-touch sensor overlay for use on
skin and introduce a design tool that generates such sensors in
custom shapes and sizes. 3) To validate the feasibility and versatility
of our approach, we present four application examples
and empirical results from two technical evaluations. They
confirm that the sensor achieves a high signal-to-noise ratio on
the body under various grounding conditions and has a high
spatial accuracy even when subjected to strong deformations.

More information: hci.cs.uni-saarland.de/research/multi-touch-skin