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Eye gaze communication

A technical seminar ...!

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Eye gaze communication

  1. 1. TECHNICAL SEMINAR ON PRESENTED BY CH.PRADEEP
  2. 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. 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. 4. INTRODUCTIONThe Eye gaze System is adirect-select vision-controlledcommunication and controlsystem.It was developed in FAIRFAX,Virginia by LCTechnologies.
  5. 5. Who is using the Eyegaze System?This system is mainlydeveloped for those who lackthe use of their hands orvoice.Its users are adults andchildren with cerebral palsy,spinal cord injuries, braininjuries, ALS, multiplesclerosis, brainstem strokes
  6. 6. SKILLS NEEDED BY THE USERS Good control of one eye Adequate visionAbility to maintain a position in front ofthe Eye gaze monitor.Mental abilities that improve theprobability for successful Eyegaze use:CognitionAbility to readMemory
  7. 7. PARTS AND WORKING OF THE EYEGAZE SYSTEMAs a user sits in frontof the Eyegazemonitor, a specializedvideo camera mountedbelow the monitorobserves one of theusers eyes.
  8. 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. 9. USES OF EYEGAZEThe Basic Eyegaze Can Calibrate Typewrite Read Text Entertain with games Teach Screens
  10. 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. 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. 12. The Phrase Program Typewriter ProgramThe telephone program The Lights & appliances Program
  13. 13. Run Second PCAs a keyboard As a mouse controller
  14. 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. 15. ADVANCEMENTSPortable Eyegaze SystemMounted on Wheelchair Screen of Eyegaze System
  16. 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. 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. 18. Some of the common eye movement problems thatinterfere with Eyegaze use areNystagmus - constant, involuntary movement of the eyeballAlternating strabismus - eyes cannot be directed to the same object, either one deviatesThe common vision problems are:Inadequate Visual acuityDiplopia (double vision)Blurred visionCataracts (clouding of the lens of the eye)
  19. 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. 20. FUTURE WORKThe 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. 21. CONCLUSIONToday, the human eye-gaze can be recorded by relativelyunremarkable techniques. This thesis argues that it is possible touse the eye-gaze of a computer user in the interface to aid thecontrol of the application.Care must be taken, though, that eye-gaze tracking data is used ina sensible way, since the nature of human eye-movements is acombination of several voluntary and involuntary cognitiveprocesses.
  22. 22. BIBOLOGRAPHYIEEE TRANSACTIONS ON NEURAL SYSTEMS ANDREHABILITATION ENGINEERING, VOL.10, NO.1, MARCH2012.Department of Computer Science,Clemson University.{hmurphy/Andrew}@vr.clemson.eduwww.cds.hawaii.edu
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