US 12,568,194 B2 · Gaze and depth based camera focusing

Abstract

Disclosed is computer-implemented method including marching first ray and second ray, along first gaze direction and second gaze direction that are estimated using gaze-tracking means, from given viewpoint into depth map, to determine first optical depth and second optical depth corresponding to first eye and second eye, respectively; calculating gaze convergence distance, based on first gaze direction and second gaze direction; detecting whether first optical depth lies within predefined threshold percent from second optical depth; and when it is detected that first optical depth lies within predefined threshold percent from second optical depth, selecting given focus distance as an average of at least two of: first optical depth, second optical depth, gaze convergence distance; and employing given focus distance for capturing given image using at least one variable-focus camera.

Claims15

Dependent claims

A computer-implemented method comprising:

marching a first ray and a second ray, along a first gaze direction and a second gaze direction that are estimated using a gaze-tracking means, from a given viewpoint into a depth map, to determine a first optical depth and a second optical depth corresponding to a first eye and a second eye, respectively;
calculating a gaze convergence distance, based on the first gaze direction and the second gaze direction;
detecting whether the first optical depth lies within a predefined threshold percent from the second optical depth;
and
when it is detected that the first optical depth lies within the predefined threshold percent from the second optical depth, selecting a given focus distance as an average of at least two of:
the first optical depth, the second optical depth, the gaze convergence distance;
and
employing the given focus distance for capturing a given image using at least one variable-focus camera.

5 more elements

A system comprising:

at least one variable-focus camera;
and
a processor configured to:
march a first ray and a second ray, along a first gaze direction and a second gaze direction that are estimated using a gaze-tracking means, from a given viewpoint into a depth map, to determine a first optical depth and a second optical depth corresponding to a first eye and a second eye, respectively;
calculate a gaze convergence distance, based on the first gaze direction and the second gaze direction;
detect whether the first optical depth lies within a predefined threshold percent from the second optical depth;
and
when it is detected that the first optical depth lies within the predefined threshold percent from the second optical depth, select a given focus distance as an average of at least two of:
the first optical depth, the second optical depth, the gaze convergence distance;
and
employ the given focus distance for capturing a given image using the at least one variable-focus camera.

8 more elements

Dependencies are inferred from the claim text.

Gaze and depth based camera focusing

Life of this patent

Gaze and depth based camera focusing

Life of this patent

Abstract

Claims15