Methods and apparatus for estimating point-of-gaze in three dimensions
AssigneeMirametrix Inc.
InventorsCraig A. Hennessey, Peter D. Lawrence
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Abstract
Methods for determining a point-of-gaze (POG) of a user in three dimensions are disclosed. In particular embodiments, the methods involve: presenting a three-dimensional scene to both eyes of the user; capturing image data including both eyes of the user; estimating first and second line-of-sight (LOS) vectors in a three-dimensional coordinate system for the user's first and second eyes based on the image data; and determining the POG in the three-dimensional coordinate system using the first and second LOS vectors.
Claims23
A method for determining a point-of-gaze (POG) of a user in three dimensions, the method comprising:
- presenting a three-dimensional scene to the user;
- capturing image data which includes images of both eyes of the user using a single image capturing device, the image capturing device capturing image data from a single point of view having a single corresponding optical axis;
- estimating a first line-of-sight (LOS) vector in a three-dimensional coordinate system for a first of the user's eyes based on the image data captured by the single image capturing device;
- estimating a second LOS vector in the three-dimensional coordinate system for a second of the user's eyes based on the image data captured by the single image capturing device;
- determining the three-dimensional POG of the user in the scene in the three-dimensional coordinate system using the first and second LOS vectors as estimated based on the image data captured by the single image capturing device.
Dependencies are inferred from the claim text.