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.

Date of Patent:
Nov. 17, 2020

Filed:

Apr. 03, 2018
Applicant:

A9.com, Inc., Palo Alto, CA (US);

Inventors:

Himanshu Arora, San Jose, CA (US);

Yifan Xing, Seattle, WA (US);

Radek Grzeszczuk, Menlo Park, CA (US);

Chun-Kai Wang, Mountain View, CA (US);

Paulo Ricardo dos Santos Mendonca, Seattle, WA (US);

Arnab Sanat Kumar Dhua, Mountian View, CA (US);

Assignee:

A9.com, Inc., Palo Alto, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06T 7/80 (2017.01); G06T 7/73 (2017.01); G06T 7/55 (2017.01); H04N 5/247 (2006.01); G06T 19/00 (2011.01);
U.S. Cl.
CPC ...
G06T 7/80 (2017.01); G06T 7/55 (2017.01); G06T 7/73 (2017.01); G06T 19/006 (2013.01); H04N 5/247 (2013.01); G06T 2207/30204 (2013.01);
Abstract

Approaches herein provide for multi-camera calibration and subsequent application in augmented reality applications. The approach obtains image data of a three-dimensional (3D) calibration object from different directions using the at least one camera. A determination is made for extrinsic parameters associated with a relative position of the 3D calibration object to the at least one camera. A further determination is made for intrinsic parameters associated with the at least one camera relative to the 3D calibration object facing in the different positions. Revised intrinsic parameters are generated from the intrinsic parameters. The revised intrinsic parameters provide a calibration output that may be applied to generate views of an item in an augmented reality application.


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