longitudinal study of people learning to use continuous ... · pdf file2009 april longitudinal...
TRANSCRIPT
Longitudinal Study of People Learning to Use
Continuous Voice-Based Cursor Control
Author: Susumu Harada Jacob O. Wobbrock Jonathan Malkin Jeff A. Bilmes, James A. Landay
Idea
● Introduce a new analog voice input method
● Discuss method of the evaluation of input system
● Discuss the outcome
● Discuss the improvement areas
Timeline
2004 OcT - Pitch Tracking
2005 Sep - Maximum Margin Learning & vowel classification
2005 Mar - Format Tracking
2005 Oct - Voice-Based Human-Computer Interface
2009 April Longitudinal study of People learning to use continuous voice based Cursor control
More than 10 paper between 2005 and 2009
Voice Control
Video Demonstration
Alternate Input Devices
Nurosky Emotiv
Eyetech
OpenEyesInput Switch
Some More ...... Ease of Access Center Sticky Keys
Magnifier Mouse Keys
On-Screen Keyboard Filter Keys
Narrator Visual Notifications
Speech Recognition Personalization
Change text size Touch
openEyes: a low-cost head-mounted eye-tracking solution
Dongheng Li, Jason Babcock, and Derrick J. Parkhurst
● Significant intrusivenessspecial contact lenses, elec-trodes, chin rests, bite bars or other components that must be physically attached to the user
● Lack of Robustness
● Low availability
● High price of eye-tracking technology.○ Toby cost around 10,000$
Challenges
● Need for robust inexpensive methods for eye tracking
● Need for open software and Hardware platform
Open Hardware
Open Source Software
Motivation
The goal of the algorithm is to extract the lo-cations of the pupil center and the corneal reflection so as to relate the vector difference between these location to coordinates in thescene image
Software - Starburst algorithm
Validation Study
Generation 3 Wide 1.16 1.38 1.71Generation 4 Wide 0.68 1.11 1.37Generation 4 Narrow 0.60 1.03 1.04
Accuracy is measured as the distance between the estimated point ofgaze and the actual location of the calibration marks in the scene image averaged over all nine calibration points
Demonstrationhttps://vpn.umbc.edu/10.1145/1120000/1117350/,DanaInfo=delivery.acm.org+p95-li.pdf?ip=130.85.16.118&acc=ACTIVE%20SERVICE&CFID=188028412&CFTOKEN=96465139&__acm__=1351547475_4045d83fc147bd43966fc9f76ed5988e
http://thirtysixthspan.com/openEyes/videos.html