A technical seminar ...!

1. TECHNICAL SEMINAR ON
PRESENTED BY
CH.PRADEEP

2. CONTENTS:
 ABSTRACT
 INTRODUCTION
 USERS OF THE EYEGAZE SYSTEM
 SKILL NEEDED BY THE USERS
 PARTS AND WORKING
 HOW TO RUN THE EYEGAZE SYSTEM
 USES OF EYEGAZE
 MENUS OF THE EYEGAZE SYETEM
 ENVIRONMENT REQUIRED FOR A SYSTEM
 ADVANCEMENTS
 APPLICATIONS
 FUTURE SCOPE
 CONCLUSION
 BIBILOGRAPHY

3. 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.

4. INTRODUCTION
The Eye gaze System is a
direct-select vision-controlled
communication and control
system.
It was developed in FAIRFAX,
Virginia by LCTechnologies.

5. 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

6. SKILLS NEEDED BY THE USERS
 Good control of one eye
 Adequate vision
Ability to maintain a position in front of
the Eye gaze monitor.
Mental abilities that improve the
probability for successful Eyegaze use:
Cognition
Ability to read
Memory

7. 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.

8. 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.

9. USES OF EYEGAZE
The Basic Eyegaze Can
 Calibrate
 Typewrite
 Read Text
 Entertain with games
 Teach Screens

10. With Options The Eye gaze Can
•BE AT TWO SITES!!
•BE A KEYBOARD
•SPEAK through a speech synthesizer
•CONTROL appliances
•DIAL and answer a phone

11. MENUS OF EYEGAZE SYSTEM
The Phrase Program
Typewriter Program
The telephone program
Run Second PC
 Paddle games & Score Four
Read Text Program
Television

12. The Phrase Program Typewriter Program
The telephone program The Lights & appliances Program

13. Run Second PC
As a keyboard As a mouse controller

14. 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.

15. ADVANCEMENTS
Portable Eyegaze System
Mounted on Wheelchair Screen of Eyegaze System

16. 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

17. For People with Limited Eye Control
 Scanning Keyboard is the
new row/column keyboard
with an on-screen eye
"switch" for people with
limited eye movement.
 The user may "speak" what
he has typed.

18. Some of the common eye movement problems that
interfere with Eyegaze use are
Nystagmus - constant, involuntary movement of the eyeball
Alternating strabismus - eyes cannot be directed to the same object,
either one deviates
The common vision problems are:
Inadequate Visual acuity
Diplopia (double vision)
Blurred vision
Cataracts (clouding of the
 lens of the eye)

19. APPLICATIONS
•Neurosciences /Neuropsychology
•Vision Research
•Experimental Psychology
•Cognitive Psychology
•Psycholinguistics
•Psychiatry /Mental Health
•Transportation: Flight simulators /driving simulators
•Robotics - remote vision control
•Video and arcade games

20. FUTURE WORK
The Eye gaze System’s Eyefollower2.0
•Totally Free Head Motion
•Automatic Eye Acquisition
•Binocular Eye tracking
•High Gaze point Tracking Accuracy
•Easy User Calibration

21. 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.

22. BIBOLOGRAPHY
IEEE TRANSACTIONS ON NEURAL SYSTEMS AND
REHABILITATION ENGINEERING, VOL.10, NO.1, MARCH
2012.
Department of Computer Science,Clemson University.
{hmurphy/Andrew}@vr.clemson.edu
www.cds.hawaii.edu

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