The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 17, 2025
Filed:
Sep. 13, 2023
Apple Inc., Cupertino, CA (US);
Tianheng Wang, San Diego, CA (US);
Stergios Roumeliotis, Los Altos Hills, CA (US);
Shuntaro Yamazaki, Cupertino, CA (US);
Oleg Naroditsky, San Francisco, CA (US);
Apple Inc., Cupertino, CA (US);
Abstract
Methods for performing a camera calibration process for outward-facing cameras on devices such as head-mounted display devices are disclosed. Using cameras with overlapping fields of view, relative rotational parameters of the cameras with respect to one another may be determined using an optimization technique such as a two-view bundle adjustment algorithm. A statistical analysis of the relative rotational parameters of the cameras, determined for a plurality of moments in time, may then be made to provide updated relative rotational parameters for recalibration of the cameras. A camera calibration process, such as those disclosed, may not depend on tracking points of interest over multiple moments in time, but rather on a convergence of the relative rotational parameters determined for respective moments in time.
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