US 2026/0254935 A1Published application

Automated interpupillary distance detection and ar device calibration system

AssigneeSnap Inc.

InventorsRina Kang, Shin Hwun Kang, Mathieu Emmanuel Vignau, Bing Wu

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Abstract

Techniques are provided for measuring interpupillary distance (IPD) using a mobile device application that integrates with augmented reality (AR) eyewear. The mobile application guides users through a measurement process using the device's camera and sensors to capture facial data. Computer vision algorithms analyze the data to determine IPD measurements while considering facial geometry and depth perception. The system provides real-time positioning feedback and allows manual entry of known IPD values. Measurements are stored in user profiles rather than on AR devices, enabling cross-device synchronization. The integration of IPD measurement into the initial device setup process, combined with flexible measurement options and profile-based storage, provides an accessible solution that maintains accuracy while eliminating the need for specialized measurement hardware.

Claims20

Dependent claims

A method for configuring an augmented reality (AR) device using a computing device having an image sensor and a depth sensing system, the method comprising:

receiving, at an application executing on the computing device, a request to determine an interpupillary distance (IPD) measurement during an initial setup process of the AR device;
displaying, via the application, instructions for positioning a user’s face relative to an image sensor of the computing device;
activating a depth sensing system of the computing device, wherein the depth sensing system comprises at least one of:
a structured light projector, an infrared camera, and a flood illuminator;
detecting the face of the user using the depth sensing system;
validating that the detected face of the user is positioned within predetermined minimum and maximum distance thresholds from the image sensor;
upon validating the face position:
capturing a series of facial depth measurements over a predetermined duration;
calculating an IPD measurement for each captured facial depth measurement using computer vision algorithms;
determining a final IPD measurement by averaging the calculated IPD measurements;
and
transmitting over a wireless network the final IPD measurement to the AR device for calibrating the AR device.

9 more elements

A system comprising:

at least one processor;
a display configured to present user interface elements and instructions;
a depth sensing system comprising at least one of:
a structured light projector, an infrared camera, and a flood illuminator;
a network communications interface configured to communicate with an augmented reality (AR) device;
and
at least one memory storage device storing instructions that, when executed by the at least one processor, cause the system to perform operations comprising:
receiving, via the display, a request to determine an interpupillary distance (IPD) measurement during an initial setup process of the AR device;
displaying, via the display, instructions for positioning a user's face relative to the depth sensing system;
activating the depth sensing system;
detecting, using the depth sensing system, the face of the user;
validating, using the depth sensing system, that the detected face is positioned within predetermined minimum and maximum distance thresholds;
upon validating the face position:
capturing, using the depth sensing system, a series of facial depth measurements over a predetermined duration;
calculating, using the processor, an IPD measurement for each captured facial depth measurement using computer vision algorithms;
determining, using the processor, a final IPD measurement by averaging the calculated IPD measurements;
and
transmitting, via the network communications interface, the final IPD measurement to the AR device for calibrating the AR device.

15 more elements

Dependencies are inferred from the claim text.