EYEGAZE COMMUNICATION Eye gaze human computer interface Presented

EYE-GAZE COMMUNICATION (Eye gaze human computer interface) Presented By: S. ESWAR SAI , IV CSE

Objectives : • Introduction • Users of the eye gaze system • Working • Options present in this eye gaze system • Future Enhancements • Conclusion

Introduction • The Eye gaze System is a communication and control system for people with complex physical disabilities. • The Eye gaze System is a directselect vision controlled communication and control system.

Users Of Eye Gaze 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

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

How does eye gaze system works v A specialized video camera mounted below the monitor observe’s one of the user’s eye. v Sophisticated image processing software in the eye gaze system’s computer continually analyzes the video image of the eye.

Software & hardware requirements Software Programs. Main Menu. Keyboard. Games. Read Text. Teach. Settings Program Hardware. Desktop computer with OS. CD and floppy drives. 15" LCD Flat Panel Monitor. Adjustable monitor tray with camera bracket. High-speed infrared sensitive camera and lens

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.

The Basic Eye Gaze Can • Calibrate • Typewrite • Read Text • Entertain with games • Teach Screens

Main Menu In Eye Gaze System

CONVERSATION Good Bye Good To See You Where Have You Been I’ Have Missed You I'm Happy I'm Sad I Need A Hug Good I Like That Talk To Me Yes No Pause Menu Hello How Have You Been? Phrase Program Telephone program

As a keyboard

mouse controller Lights & appliances Program

Operational Environment • The Eye gaze 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 mercuryvapor lights, which are low in infrared.

Intelli Gaze IG-30 • It is a sophisticated system with a high tracking rate and excellent working range. • It can accommodate rapid or involuntary head movements • Intelli Gaze uses the latest camera technology, very sophisticated image processing and calibration methods

Images Of Eye Gaze Systems

FUTURE WORK The Eye gaze System’s Eyefollower 2. 0 • Totally Free Head Motion • Automatic Eye Acquisition • Binocular Eye tracking • High Gaze point Tracking Accuracy • Easy User Calibration

Future Enhancements Latest potable Eye Gaze system

Some of the common eye movement problems that interfere with Eyegaze use are ØNystagmus - constant, involuntary movement of the eyeball ØAlternating strabismus - eyes cannot be directed to the same object, either one deviates The common vision problems are: ØInadequate Visual acuity ØDiplopia (double vision) ØBlurred vision ØCataracts (clouding of the Ø lens of the eye)

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

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.

References • http: //www. eyegaze. com/content/assistive-technology • http: //www. eyegaze. com/content/eyetracking-researchtools • http: //www. gschlosser. de/eyegaze_english. htm • http: //www. sensorysoftware. com/132. html • http: //www. diku. dk/hjemmesider/ansatte/panic/eyegaze/ node 19. html • http: //www. eyetechds. com/