use of eye movement gestures for web browsing
DESCRIPTION
Use of Eye Movement Gestures for Web Browsing. Kevin Juang Frank Jasen Akshay Katrekar Joe Ahn. Motivation. Eye Gestures Gaze input Mouse gestures Web Browsing Common task in modern computing Well suited to eye movement gestures Well learned, emphasizing speed - PowerPoint PPT PresentationTRANSCRIPT
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Use of Eye Movement Gestures for Web Browsing
Kevin JuangFrank JasenAkshay KatrekarJoe Ahn
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Motivation
Eye Gestures Gaze input Mouse gestures
Web Browsing Common task in modern computing Well suited to eye movement gestures
Well learned, emphasizing speed Natural mapping of navigational directions
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Prior Work
Gaze Input Issues (Ashmore) Eye tracker accuracy Sensor lag Fixation jitter Midas touch
Mouse Gesture Issues (Moyle & Cockburn) Complicated non-linear gestures Not truly modeless Greater need for feedback
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Prior Work
Off-Screen Targets (Isokoski) Addressed previous gaze input issues Eye typing maybe not a good domain Need for physical off-screen targets
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Methodology (Apparatus)
Tobii ET-1750 from Tobii Technology 17-inch TFT 1280x1024 Monitor .5˚ accuracy with a 50 Hz sampling rate
25-35 ms Latency 28˚ visual angle vertically and horizontally
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Methodology (Apparatus)
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Methodology (Stimulus)
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Methodology (Implementation)
Gaze point determined every 20 ms Four hot zones Middle 30% of each edge Extended 15% off the screen 100 ms delay Flags set when in hot zone
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Methodology (Implementation)
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Methodology (Implementation)
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Hypotheses
Eye gesture should be both faster and less accurate compared to mouse
Eye fatigue should cause eye gesture to become slower as the number of instructions increases.
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Results
Number of subjects = 15
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Results
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Discussion
Trial Length and Input Method Interaction Suggests mouse input in certain situations Test results perhaps not indicative of real world
Speed-Accuracy Tradeoff Faster even accounting for error correction
Speed benefit outweighs accuracy loss Future results could be even more favorable
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Survey Results
Ease of use (eye gestures) ---- 3.53 Speed and efficiency in using eye gestures compared to mouse input ---- 4.53
Overall satisfaction in using eye gestures compared to mouse ---- 3.60
Eye gesture as an effective means of web browsing navigation ---- 3.93
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Further Work
Real World Setting High fidelity Browser implementation Other domains outside web browsing
Additional gestures Corners Following a link Magnitude of scrolling
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Conclusions
Eye Gesture System Leverages gaze input and mouse gestures Web browsing as a good domain Off-screen hot zones
Benefits Speed User satisfaction
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Questions?