Back to results
US 2026/0010989 A1Published application
Online calibration of a head-worn device
AssigneeGoogle Inc.
InventorsZhiheng Jia, Chao Guo
Life of this patent
Estimating the term…
Abstract
A head-worn device may be configured with a curved window-element that can generate distortion in images captured by a camera of the head-worn device. Window extrinsics describing the shape, orientation, and/or position of the curved window-element may be used as a calibration to reduce the distortion. An online calibration process may be run at times during use so that the window extrinsics can be updated to accurately represent the curved window-element after changes in the shape, orientation, and/or position of the curved window-element occur.
Claims22
A method comprising:
- generating an image including a window-element of a head-worn device, the window-element having a curve;
- identifying a fiducial in the image;
- comparing the fiducial to an expected-fiducial to calculate a misalignment of the window-element;
- updating a calibration parameter based on the misalignment;
- storing the calibration parameter in a memory;
- and
- modifying the image based on the calibration parameter.
4 more elements
A head-worn device, comprising:
- a memory including an expected-fiducial;
- a window-element;
- a camera configured to capture an image including the window-element;
- and
- a processor communicatively coupled to the camera and to the memory, the processor configured by software instructions to:
- identify a fiducial in the image;
- compare the fiducial to the expected-fiducial to calculate a misalignment of the window-element;
- update a calibration parameter based on the misalignment;
- store the calibration parameter in the memory;
- and
- modify the image based on the calibration parameter.
8 more elements
(canceled)
(canceled)
Dependencies are inferred from the claim text.