CoReach: Cooperative Gestures for Data Manipulation on Wall-sized Displays
summary
CoReach implements cooperative gestures on a wall-sized display plus tablets (remote touch) and claims to reduce physical fatigue while supporting on-the-fly collaboration. It builds preview (concurrent five-finger hold creates a temporary copy), throw-and-catch (object blinks for 10 s tolerance and can be caught from ~3 m on average), and a shared clipboard (add/remove items, zig-zag release). Two observational studies and two controlled studies with six pairs each show cooperative gestures compose ~30% of actions, cut dragging distance significantly, and had mixed tablet uptake (0–50% across pairs).
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chapters (7)
- 0:00Introduction and motivation
- 3:05Observational study design
- 5:15CoReach cooperative gestures
- 9:38Multi-surface interaction
- 11:49User study insights
- 16:36Summary and future work
- 18:46Q&A session
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