Introducing Transient Gestures to Improve Pan and Zoom on Touch Surfaces
summary
Introduces transient bookmarks: put a non-dominant finger down to save the current view, perform pan/zoom/annotation, then lift to snap back. Prototype runs on an Android tablet and the lab study (144 tasks per person, 18 participants, 2,592 tasks total) shows transient reduces zoom actions from ~3.4 to 1.43 (≈58% fewer) and cuts task time from 5.3s to 4.4s (≈17% faster) versus standard pan/pinch; subjective ratings match double-tap speed. Implementation notes address occlusion by allowing the finger to slide to screen edges.
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chapters (7)
- 0:00Introduction and motivation
- 3:36Prior work and design goals
- 7:26Transient gesture design
- 10:15Experimental setup
- 13:07Results and findings
- 15:58User feedback and future work
- 17:22Q&A session
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