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PeriSense: Ring-Based Multi-Finger Gesture Interaction Utilizing Capacitive Proximity Sensing.

Mathias Wilhelm1, Daniel Krakowczyk1, Sahin Albayrak1

  • 1DAI-Labor, Technische Universität Berlin, 10587 Berlin, Germany.

Sensors (Basel, Switzerland)
|July 26, 2020
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Summary
This summary is machine-generated.

PeriSense is a novel ring-based wearable that enables multi-finger gesture interaction by sensing proximity to adjacent fingers. This wearable technology reliably detects conductive objects up to 2.5 cm away, opening new interaction possibilities.

Keywords:
capacitive sensingfinger augmentation devicefinger gesture recognitionringwearable interaction device

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Area of Science:

  • Human-Computer Interaction
  • Wearable Technology
  • Sensor Technology

Background:

  • Wearable rings are popular for gesture interaction but typically limited to single-finger or whole-hand sensing.
  • Existing ring-based systems lack the capability for nuanced, multi-finger gesture recognition.

Purpose of the Study:

  • To introduce PeriSense, a ring-shaped device for advanced multi-finger gesture interaction.
  • To define the interaction space, capabilities, and limitations of PeriSense.
  • To evaluate PeriSense's performance in sensing gestures and conductive objects.

Main Methods:

  • Developed a ring-shaped prototype, PeriSense, with electrodes to measure capacitive proximity to human skin.
  • Analyzed sensor resolution at varying distances from the ring.
  • Evaluated gesture recognition accuracy for finger and unistroke gestures.

Main Results:

  • PeriSense reliably senses changes in conductive objects up to 2.5 cm.
  • The device successfully distinguishes between gestures involving the ringed finger and adjacent fingers.
  • Demonstrated the potential for multi-finger gesture recognition and two-handed unistroke input.

Conclusions:

  • PeriSense offers a new paradigm for wearable gesture interaction, extending beyond single-finger or hand-level sensing.
  • The device's ability to sense proximity enables sophisticated interaction techniques.
  • PeriSense provides valuable insights into the capabilities and limitations of ring-based multi-finger gesture recognition.