1. EYE-GAZE COMMUNICATION

2. 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 .

3. Contents Introduction Users of the eye gaze system Working Running
Functionalities
Operational environment
Advancements
Future Work
Conclusion

4. Introduction
The Eye gaze System is a direct-select vision-controlled communication and control system.

5. Edmund Huey built an early eye tracker, using a sort of contact lens with a hole for the pupil. The lens was connected to an aluminum pointer that moved in response to the movement of the eye
It was developed in Fairfax, Virginia, by LC
Technologies, Inc.,
With the help of an eye gaze system,
people whose communication abilities are
impaired can still express their feelings and
needs with a limitless vocabulary.

6. Who uses the eye gaze system?

7. 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

8. Skills needed by the users
Good control of one eye 
Adequate vision
Ability to maintain a position in
front of the Eye gaze monitor

9. Parts of the eye gaze system

10. Working of the eye gaze system

11. How can we run this eye gaze?

12. The Basic Eye gaze can Calibrate Typewrite Read Text
Entertain with games
Teach Screens

13. 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

15. The Phrase Program

16. The telephone program

17. Run Second PC
As a keyboard

18. As a mouse controller

19. The Lights & appliances Program

20. Operational environment
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.

21. SOME OF THE PRESENT DAY EYE GAZE TRACKING TECHNIQUES
Offer an unobstructed field of view with good access to the face and head.
Make no contact with the subject.
Be easily extended to binocular recording
Be compatible with head and body recordings
Be easy to use on a variety of subjects.

22. Advancements
New portable eye gaze systems

23. 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

24. 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. 

25. 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

26. The common vision problems are
Inadequate Visual acuity
Diplopia (double vision)
Blurred vision
Cataracts (clouding of the
lens of the eye)

27. Ability to read Cognition Memory
 Mental abilities that improve the probability for successful Eyegaze use
Ability to read
Cognition
Memory

28. 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

29. 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

30. 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.