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Combing 3D gesture with touch interface on mobile devices
指導教授:洪一平、余能豪學生:資工所碩二 吳 歡
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Outline Problem Related works Our goal Experiment design
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Problem: Touch Accuracy Fat finger / Occlusion Problem
Text selection Pins selection
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Related works (1/3) Shift: A Technique for Operating Pen-Based
Interfaces Using Touch (CHI 2007, Daniel Vogel, Patrick Baudisch)
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Related works (2/3) Back-of-Device Interaction Allows Creating
Very Small Touch Devices (CHI 2009, Patrick Baudisch)
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Related works (3/3) Vision-based 3D Input Interface Technologies
(IDW 2010, Takashi Komuro)
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In-air selecting technique1. move finger above the screen (orthogonal
mode)2. move finger w/ precision control (perspective
mode)
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Methodology finger tracking:
x,y… how z-depth… how
air-tapping how
Apparutas iPhone 4S w/ front camera
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Hypothesis The completion time of in-air selection is
shorter than that of Shift (baseline)
The error-rate of in-air selection is lessthan that of Shift
User preference? orthogonal or perspective mode
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Experiment design Text editor – copy & paste
First-line selection *3 Middle-line selection *3 Across-page selection *3 Each has orthogonal / perspective mode
* show example pict
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Thank you!