کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6269948 | 1295166 | 2010 | 7 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Measuring torsional eye movements by tracking stable iris features Measuring torsional eye movements by tracking stable iris features](/preview/png/6269948.png)
We propose a new method to measure torsional eye movements from videos taken of the eye. In this method, we track iris features that have been identified as Maximally Stable Volumes. These features, which are stable over time, are dark regions with bright borders that are steep in intensity. The advantage of Maximally Stable Volumes is that they are robust to nonuniform illumination and to large changes in eye and camera position. The method performs well even when the iris is partially occluded by reflections or eyelids, and is faster than cross-correlation. In addition, it is possible to use the method on videos of macaque eyes taken in the infrared, where the iris appears almost featureless.
Research highlightsⶠMaximally Stable Volumes are automatically detected features. ⶠMaximally Stable Volumes allow stable tracking through time. ⶠRobust to nonuniform illumination and large changes in eye position. ⶠFaster than cross-correlation.
Journal: Journal of Neuroscience Methods - Volume 192, Issue 2, 15 October 2010, Pages 261-267