Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
From left to right: the low-pass filtered image with the estimated pupil center (see Section 2.2); the bi- narized image; the filtered image with detected pupil contours, defined as the edges of the blob in the binarized image that contains the estimated pupil center; and the pupil ellipse that is fitted to the contours.
