# US 2026/0090747 A1 · Adjusting gaze targets

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- Number: US 2026/0090747 A1
- Document ID: US20260090747A1
- Status: Published application
- Kind: A1
- Application number: 18/899,840
- Filed: 2024-09-27
- Published: 2026-04-02
- Earliest claimed: 2024-09-27
- Assignees: NeuraLight Ltd.
- Applicants: NeuraLight Ltd.
- Inventors: Rotem Zvi BAR-OR; John Michael ROZMUS; Vladimir ANISIMOV
- Web page: https://patentgrep.com/patent/US20260090747A1

## CPC

- A61B 5/163: {by tracking eye movement, gaze, or pupil change}
- A61B 3/0091: {Fixation targets for viewing direction}
- A61B 3/14: Arrangements specially adapted for eye photography
- A61B 5/165: {Evaluating the state of mind, e.g. depression, anxiety}
- G06T 7/0012: {Biomedical image inspection}
- G06T 7/246: using feature-based methods, e.g. the tracking of corners or segments
- G06T 7/50: Depth or shape recovery
- G06T 7/62: of area, perimeter, diameter or volume
- G06T 7/70: Determining position or orientation of objects or cameras (camera calibration G06T7/80)
- G06T 15/20: Perspective computation
- G06T 17/00: Three-dimensional [3D] modelling for computer graphics
- G06T 19/20: Editing of three-dimensional [3D] images, e.g. changing shapes or colours, aligning objects or positioning parts
- G06T 2207/20084: Artificial neural networks [ANN]
- G06T 2207/30041: Eye; Retina; Ophthalmic
- G06T 2207/30201: Face
- G06T 2210/41: Medical
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)
- G06T: IMAGE DATA PROCESSING OR GENERATION, IN GENERAL

## Abstract

Disclosed herein are system, method, and computer program product embodiments, and/or combinations and sub-combinations thereof, for adjusting a content of a visual stimulus. In some embodiments, an orientation or a location of a face of a user relative to a display is determined. The content of the visual stimulus is then adjusted to compensate for a misalignment between the orientation or the location of the face of the user and the display. The adjusting comprises maintaining an attribute of the visual stimulus as perceived along a line of sight of the user.

## Claims

### Claim 1

A computer-implemented method for adjusting a content of a visual stimulus, comprising:
acquiring one or more image frames of a face of a user;
determining, using one or more processors, an orientation or a location of the face of the user relative to a display based on the one or more image frames of the face of the user; and
adjusting the content of the visual stimulus to compensate for a misalignment between the orientation or the location of the face of the user and the display, wherein the adjusting comprises maintaining an attribute of the visual stimulus as perceived along a line of sight of the user and wherein the attribute of the visual stimulus comprises a length, a direction, or a shape of the visual stimulus.

### Claim 2 (depends on 1)

The computer-implemented method of claim 1, wherein the determining the orientation or the location of the face of the user comprises:
generating a three-dimensional model of the face of the user using the one or more image frames of the face of the user, wherein the one or more image frames are acquired via an image sensor;
adjusting the one or more image frames based on at least the three-dimensional model of the face of the user and a position of the image sensor to obtain one or more adjusted image frames; and
determining the orientation or the location of the face of the user using the one or more adjusted image frames.

### Claim 3 (depends on 2)

The computer-implemented method of claim 2, further comprising:
determining a depth from the image sensor to the face of the user.

### Claim 4 (depends on 2)

The computer-implemented method of claim 2, wherein the one or more adjusted image frames comprises the face of the user as visualized by a virtual image sensor positioned at a center of the display.

### Claim 5 (depends on 1)

The computer-implemented method of claim 1, wherein the determining the orientation or the location of the face of the user comprises:
determining a roll angle or a tilt angle of the display.

### Claim 6 (depends on 5)

The computer-implemented method of claim 5, wherein the content of the visual stimulus comprises a gaze target, and
wherein the adjusting the content of the visual stimulus comprises:
adjusting a position of the gaze target based on the roll angle or the tilt angle of the display.

### Claim 7 (depends on 1)

The computer-implemented method of claim 1, wherein the orientation of the face of the user is determined relative to an imaginary line from a center of the display to the center of a head of the user.

### Claim 8 (depends on 1)

The computer-implemented method of claim 1, further comprising:
acquiring another image frame of the face of the user while the visual stimulus is presented on the display;
determining an oculometric parameter of an eye of the user using the another image frame; and
determining one or more digital markers of the user based on the oculometric parameter, wherein the one or more digital markers are indicative of a neurological condition or a mental health condition of the user.

### Claim 9 (depends on 1)

The computer-implemented method of claim 1, wherein the visual stimulus comprises a saccade test.

### Claim 10

A system for adjusting a content of a visual stimulus, comprising:
one or more memories;
at least one processor each coupled to at least one of the memories and configured to perform operations comprising:
acquiring one or more image frames of a face of a user;
determining an orientation or a location of the face of the user relative to a display based on the one or more image frames of the face of the user; and
adjusting the content of the visual stimulus to compensate for a misalignment between the orientation or the location of the face of the user and the display, wherein the adjusting comprises maintaining an attribute of the visual stimulus as perceived along a line of sight of the user and wherein the attribute of the visual stimulus comprises a length, a direction, or a shape of the visual stimulus.

### Claim 11 (depends on 10)

The system of claim 10, wherein the determining the orientation or location of the face of the user comprises:
generating a three-dimensional model of the face of the user using the one or more image frames of the face of the user, wherein the one or more image frames is acquired via an image sensor;
adjusting the one or more image frames based on at least the three-dimensional model of the face of the user and a position of the image sensor to obtain one or more adjusted image frames; and
determining the orientation or the location of the face of the user using the one or more adjusted image frames.

### Claim 12 (depends on 11)

The system of claim 11, wherein the operations further comprise:
determining a depth from the image sensor to the face of the user.

### Claim 13 (depends on 12)

The system of claim 12, wherein the one or more adjusted image frames comprises the face of the user as visualized by a virtual image sensor positioned at a center of the display.

### Claim 14 (depends on 10)

The system of claim 10, wherein the determining the orientation or location of the face of the user comprises:
determining a roll angle or a tilt angle of the display.

### Claim 15 (depends on 14)

The system of claim 14, wherein the content of the visual stimulus comprises a gaze target, and
wherein the adjusting the content of the visual stimulus comprises:
adjusting a position of the gaze target based on the roll angle or the tilt angle of the display.

### Claim 16

A non-transitory computer-readable medium having instructions stored thereon that, when executed by at least one computing device, cause the at least one computing device to perform operations comprising:
acquiring one or more image frames of a face of a user;
determining an orientation or a location of the face of the user relative to a display based on the one or more image frames of the face of the user; and
adjusting a content of a visual stimulus to compensate for a misalignment between the orientation or the location of the face of the user and the display, wherein the adjusting comprises maintaining an attribute of the visual stimulus as perceived along a line of sight of the user and wherein the attribute of the visual stimulus comprises a length, a direction, or a shape of the visual stimulus.

### Claim 17 (depends on 16)

The non-transitory computer-readable medium of claim 16, wherein the determining the orientation or location of the face of the user comprises:
generating a three-dimensional model of the face of the user using the one or more image frames of the face of the user, wherein the one or more image frames are acquired via an image sensor;
adjusting the one or more image frames based on at least the three-dimensional model of the face of the user and a position of the image sensor to obtain one or more adjusted image frames; and
determining the orientation or the location of the face of the user using the one or more adjusted image frames.

### Claim 18 (depends on 17)

The non-transitory computer-readable medium of claim 17, wherein the operations further comprise:
determining a depth from the image sensor to the face of the user.

### Claim 19 (depends on 17)

The non-transitory computer-readable medium of claim 17, wherein the one or more adjusted image frames comprises the face of the user as visualized by a virtual image sensor positioned at a center of the display.

### Claim 20 (depends on 16)

The non-transitory computer-readable medium of claim 16, wherein the determining the orientation or location of the face of the user comprises:
determining a roll angle or a tilt angle of the display.

### Claim 21 (depends on 1)

The computer-implemented method of claim 1, wherein the one or more images are a sequence of images from a video of the user.