TUIC: Enabling tangible interaction on capacitive multi-touch display

Neng Hao Yu*, Li-Wei Chan, Seng Yong Lau, Sung Sheng Tsai, I. Chun Hsiao, Dian Je Tsai, Lung Pan Cheng, Fang I. Hsiao, Mike Y. Chen, Polly Huang, Yi Ping Hung

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

48 Scopus citations

Abstract

We present TUIC, a technology that enables tangible interaction on capacitive multi-touch devices, such as iPad, iPhone, and 3M's multi-touch displays, without requiring any hardware modifications. TUIC simulates finger touches on capacitive displays using passive materials and active modulation circuits embedded inside tangible objects, and can be used with multi-touch gestures simultaneously. TUIC consists of three approaches to sense and track objects: spatial, frequency, and hybrid (spatial plus frequency). The spatial approach, also known as 2D markers, uses geometric, multi-point touch patterns to encode object IDs. Spatial tags are straightforward to construct and are easily tracked when moved, but require sufficient spacing between the multiple touch points. The frequency approach uses modulation circuits to generate high-frequency touches to encode object IDs in the time domain. It requires fewer touch points and allows smaller tags to be built. The hybrid approach combines both spatial and frequency tags to construct small tags that can be reliably tracked when moved and rotated. We show three applications demonstrating the above approaches on iPads and 3M's multi-touch displays.

Original languageEnglish
Title of host publicationCHI 2011 - 29th Annual CHI Conference on Human Factors in Computing Systems, Conference Proceedings and Extended Abstracts
Pages2995-3004
Number of pages10
DOIs
StatePublished - 13 Jun 2011
Event29th Annual CHI Conference on Human Factors in Computing Systems, CHI 2011 - Vancouver, BC, Canada
Duration: 7 May 201112 May 2011

Publication series

NameConference on Human Factors in Computing Systems - Proceedings

Conference

Conference29th Annual CHI Conference on Human Factors in Computing Systems, CHI 2011
CountryCanada
CityVancouver, BC
Period7/05/1112/05/11

Keywords

  • 2D marker
  • Frequency tag
  • Interactive surface
  • Multi-touch
  • Physical interaction
  • TUI
  • Tags
  • Tangible

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