Relative Position Based Eye-Tracking System
AssigneeAvegant Corp.
InventorsAaron Matthew Eash, Baker Ngan, D. Scott Dewald, Andrew John Gross, Edward Chia Ning Tang, Jindrich Semenec, Warren Cornelius Welch, III, William Tze-Tse Chien
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Abstract
A relative position based eye tracking system includes a light source to illuminate a portion of the eye and an optical sensor to capture a sequence of samples of the portion of the eye. The system further includes a sample comparator to compare two samples and a relative position calculator to calculate a change in the position of the eye based on data from the sample comparator.
Claims26
A relative position based eye tracking system comprising:
- a light source to illuminate a portion of an eye;
- an optical sensor to capture a sequence of samples of a portion of the eye;
- a sample comparator to compare two samples;
- a relative position calculator to calculate a change in a position of the eye based on data from the sample comparator;
- and
- a processor configured to implement a global correction system triggered based on a non-time based trigger, the global correction system to correct the relative position calculator.
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A system to enable relative position based eye tracking, the system comprising:
- a memory;
- a processor in communication with the memory, the processor to:
- compare samples of images captured of a portion of an eye;
- calculate a change in a position of the eye based on the comparison;
- utilize the change in the position of the eye to calculate an actual position of the eye;
- and
- utilize a non-time based trigger to trigger a global correction to correct the actual position of the eye.
A method of eye tracking in a wearable system comprising:
- illuminating a portion of an eye;
- capturing a sequence of samples of a portion of the eye;
- comparing two samples;
- calculating a change in a position of the eye based on the comparing, the change comprising a relative position of the eye;
- determining a position of the eye from the relative position;
- and
- triggering, using a non-time based trigger, a global correction system to correct the position of the eye from the relative position.
Dependencies are inferred from the claim text.