Fig. 1. Experimental equipment

Fig. 2. Framework of the hardware system

Fig. 3. Image of an eye

Fig. 4. Training effect of different C values

Fig. 5. Eye feature point information

Fig. 6. Blinking process

Fig. 7. Comparison results of histogram equalization

Fig. 8. Image denoising

Fig. 9. Candidate pupil information

Fig. 10. Pupil threshold segmentation

Fig. 11. Screening conditions for candidate pupil contours

Fig. 12. Cropped area diagram

Fig. 13. Pupil fitting diagram