Eye Gaze Tracking System
Contents
1. you will see an image like the following You should have already placed the helmet on your head so you should see an image of your eye Once your satisfied that you have a decent image of your eye click Continue and the following dialog box will appear Take Snapshot Look at center of screen click Take Snapshot Take Snapshot Retake snapshot until you are satisfied that itis an image of your eve looking at the center of the SCIEEr Continue gt gt Cancel ul This dialog box asks you to take a snapshot of your eye as you look at the center of the screen The offset from this center gaze will determine the gaze projection on the screen When you are satisfied you have a good image of your eye click Continue and the following screen will appear Calibration Sample Eve four Eve Coordinates Clicked Your pupil radius is 32 98484 Click center of pupil on your eye done Click an edge of your ins done Cancel This dialog box asks you click the center of your eye and then click the edge of the iris Click those two points in succession This will mark the radius of the iris that will be searched for in the subsequent images Once your done click Ok and another dialog box will appear Gaze Tracking Toolbar Gaze Projection Test Ins Radius l Track Eve Gaze ri j r f mm 32 364 px Preview Video Screen Diagonal inches F Display xy Coordinates fi 475 Display Tracking2. Dot Trace Path Distance to screen mm o Find Edges Eyeball Radius mm Grab Frame 15 nk Canny Edge Detect Messages tol This dialog box will stay open during the gaze tracking session Use it to control the gaze tracking When you feel ready check the Track Eye Gaze box to start the tracking Toggle this box to track or not When gaze tracking is on it will look like the following oe Bitmap Citieet ip Hi2 a Aitmap Gort imm a A w Beea Projection Ohea jam HARA mn Ceres Biimep pr 7437 E This screen shows the preview window canny edge detected image and the circle that the computer thinks is the iris overlaid on the canny edge image Data is also displayed in the upper left The little red dots are numbered and correspond to where the computer thinks the user is looking The video preview will appear in the center and can be moved by the following menu options EE EyeTrack Untitled video Preview Locatia n d You can also change video configuration by using the following menu options led Eye Track Untitled Video Video Configuration If you need to you can re calibrate the system and start and stop tracking by using the following menu EE Eye Track Untitled Eye Tracking Here is another picture of the working system with the gaze tracking toolbar moved off the screen MP USESII0TE Bitmap Odtset po 191P Bitmap Dttaet ma 5 0
3. age ne AR Sereen Projection Offset ma SBOH Fo Center Bitmap pode 7A 36 mt Treking Teha
4. Eye Gaze Tracking System User Manual Greg Book Wajid Ahmed Hardik Dave 2002 University of Connecticut Starting the Program To start eye gaze tracking first start the program The first screen you will see will direct you what to do next First click the See Preview button to begin the video stream Select ideo Source A preview window will appear in the middle of the screen It may display static and you must also select the video capture device driver by clicking the Source button The following dialog box will appear Capture Source Device Settings Camera Controls S lect a Video Device ATI TY Wonder Conexant Capture Select a Video Source ae Select the correct Video Device and the correct Video Source Capture devices may have different video sources so select the one that will be used with the eye tracking system Click Ok Next Click the Format button The following dialog box will appear Stream Settings Digital Image Format Resolution Fisel Depth bits and Compression Size bytes 320 y 240 RGE 555 16 bit 153600 160 120 176 x 144 240 176 2404160 cancel Apo Select the video format that is effective for your CPU speed A larger image format will be slower but more accurate A smaller image will be faster but less accurate Choose the largest image format that allows reasonable speed If everything 1s configured correctly
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