Moving The Mouse Pointer Using Eye Gazing

Moving The Mouse Pointer Using Eye Gazing Student: Ibraheem Frieslaar Supervisor: Mehrdad Ghaziasgar

OVERVIEW • INTRODUCTION • USER INTERFACE SPECIFICATION • HIGH LEVEL DESIGN • LOW LEVEL DESIGN • DEMO • REFERENCES • QUESTIONS & ANSWERS

INTRODUCTION • Eye ball tracker • Using the webcam to determine eye gazelocation • Moving the mouse to that location

USER INTERFACE SPECIFICATION • Runs in the Background • It’s a Daemon

High Level Design Image Processing Input Webcam Move Mouse Pointer

Low Level Design Input Webcam Image Processing Move Mouse Pointer Haar Detection Locate Eyes Determine left Eye Locate Iris SVM

Low Level Design Input Webcam • Acquire Image • cvQueryFrame( capture )

Low Level Design Haar Detection • Haar like features • Detects Eyes cvHaarDetectObjects

Low Level Design Locate Eyes • Set Haar Detection as Region of Intrest cvSetImageROI Determine left Eye • Half the image for left eye cvSetImageROI/2

Low Level Design Locate Iris • Hough Circles • Determine Darkest Pixels • circles = cvHoughCircles • Display Circle • DarkPixels= DarkPixels+ (255-s.val[0]) • MaxDarkPixels = DarkPixels • cvCircle

Low Level Design Right Eye • Eye Redrawn SVM • Pixel values saved • Values sent to Support Vector Machine (SVM) 1 1:255 2:255 3:255 4:0 5:0 6:0 7:255 8:255 system("svm-predict.exe Test trainer.modelresult") • SVM Prediction

Low Level Design Move Mouse Pointer SetCursorPos(x,y);

Demo

REFERENCES • OpenCVWiki. lOpenCVWiki. [Online]. http://opencv.willowgarage.com/wiki/FullOpenCVWiki • HeikoDrewes, "Eye Gaze Tracking for Human Computer Interaction," Ludwig-Maximilians-Universität, Munich, 2010.

QUESTIONS AND ANSWERSThank You!

Moving The Mouse Pointer Using Eye Gazing