25-08-2014, 02:38 PM
SEMINAR ON EYE-GAZECOMMUNICATION SYSTEM
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ABSTRACT
The Eye gaze System is a communication
system for people with complex physical
disabilities.
This operates with eyes by looking at
control keys displayed on a screen.
With this system a person can synthesize
speech, control his environment , operate
a telephone, run computer software,
operate a computer mouse, and access
the Internet and e-mail.
INTRODUCTION
The Eye gaze System is a direct-select vision-controlled communication and control system.
It was developed in FAIRFAX, Virginia by LCTechnologies.
SKILLS NEEDED BY THE USERS
Good control of one eye
Adequate vision
Ability to maintain a position in front of the Eye gaze monitorMental abilities that improve the probability for successful Eyegaze use:
Cognition
Ability to read
Memory
PARTS AND WORKING OF THE EYEGAZE SYSTEM
As a user sits in front of the Eyegaze monitor, a specialized video camera mounted below the monitor observes one of the user's eyes.
Who is using the Eyegaze System?
This system is mainly developed for those who lack the use of their hands or voice.
Its users are adults and children with cerebral palsy, spinal cord injuries, brain injuries, ALS, multiple sclerosis, brainstem strokes
How to run the Eyegaze System
A user operates the Eyegaze System by looking at rectangular keys that are displayed on the control screen.
To "press" an Eyegaze key, the user looks at the key for a specified period of time
Environment required for an Eyegaze system
The Eyegaze System must be
operated in an environment
where there is limited of
infrared light.
The System works best away
from windows, and in a room
lit with fluorescent or mercury-
vapor lights, which are low in
infrared.
IntelliGaze IG-30
It is a sophisticated system with a high tracking rate and
excellent working range.
It can accommodate rapid or involuntary head
movements
Intelligaze uses the latest camera
technology, very sophisticated image
processing and calibration methods
CONCLUSION
Today, the human eye-gaze can be recorded by relatively unremarkable techniques. This thesis argues that it is possible to use the eye-gaze of a computer user in the interface to aid the control of the application.
Care must be taken, though, that eye-gaze tracking data is used in a sensible way, since the nature of human eye-movements is a combination of several voluntary and involuntary cognitive processes.