SYSTEM AND METHOD FOR TRACKING THE POINT OF GAZE OF AN OBSERVER
First Claim
1. System for tracking the point of gaze of an observer observing an object, wherein the system comprises a device for recording an image of an eye of the observer, comprises a means for providing a luminous marker on or associated with the observed object, and a means for determining from the image a corneal reflection of the marker on the eye and the centre of the pupil, wherein the system comprises a means for determining relative positions of the corneal reflection of the marker and the pupil centre and a means for repositioning the marker dependent on the determined relative positions.
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Accused Products
Abstract
A system for tracking the point of gaze of an observer observing an object comprises a camera for recording an image of an eye of the observer, comprises a means for providing a luminous marker, and means for analyzing the image of the eye to determine the reflection of the marker on the eye and the centre of the pupil. The relative positions of the corneal reflection of the marker and the pupil centre are measured. The marker is repositioned, in dependence on the determined relative positions, to improve correspondence between the corneal reflection of the marker and the pupil centre.
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Citations
18 Claims
- 1. System for tracking the point of gaze of an observer observing an object, wherein the system comprises a device for recording an image of an eye of the observer, comprises a means for providing a luminous marker on or associated with the observed object, and a means for determining from the image a corneal reflection of the marker on the eye and the centre of the pupil, wherein the system comprises a means for determining relative positions of the corneal reflection of the marker and the pupil centre and a means for repositioning the marker dependent on the determined relative positions.
- 16. Method for tracking the point of gaze of an observer observing an object, wherein the method comprises recording an image of an eye of the observer, providing a luminous marker on or associated with the observed object, and determining from the image a corneal reflection of the marker and the centre of the pupil, wherein relative positions of the corneal reflection of a marker and the pupil centre are determined, and the marker is repositioned dependent on the determined relative positions.
Specification