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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.:

US 11816849 B1

PDFFull Text
Date of Patent:
Nov. 14, 2023

Filed:

Sep. 30, 2022

Systems and methods for video-based sports field registration

Applicant:

Amazon Technologies, Inc., Seattle, WA (US);

Inventors:

Xiaohan Nie, Lynnwood, WA (US);

Muhammad Raffay Hamid, Seattle, WA (US);

Assignee:

Amazon Technologies, Inc., Seattle, WA (US);

Attorney:

Weaver Austin Villeneuve & Sampson LLP

Primary Examiner:

Anand P Bhatnagar

Int. Cl.
CPC ...
G06T 7/33 (2017.01); G06T 7/73 (2017.01); G06V 20/40 (2022.01); G06V 10/75 (2022.01); H04N 5/272 (2006.01); G06F 18/40 (2023.01); G06F 18/214 (2023.01); G06F 18/21 (2023.01); H04N 21/2187 (2011.01); H04N 21/234 (2011.01);
U.S. Cl.
CPC ...
G06T 7/337 (2017.01); G06F 18/214 (2023.01); G06F 18/2163 (2023.01); G06F 18/2178 (2023.01); G06F 18/41 (2023.01); G06T 7/73 (2017.01); G06V 10/751 (2022.01); G06V 20/46 (2022.01); H04N 5/272 (2013.01); G06T 2207/10016 (2013.01); G06T 2207/20021 (2013.01); G06T 2207/20081 (2013.01); G06T 2207/20092 (2013.01); G06T 2207/30204 (2013.01); G06T 2207/30228 (2013.01); H04N 21/2187 (2013.01); H04N 21/23418 (2013.01);
Abstract

Methods and systems are described for registering a sports field to a video. Video of a live event may feature participants at a venue. A template of the venue, including virtual markings that represent real markings on the venue, may be obtained. A homographic transformation between an image plane and a ground plane may be determined by matching virtual markings to corresponding real markings captured in at least one frame of the video. The determined homographic transformation may be used in the automated analysis of sports statistics and in improving inserted annotations and visualizations.

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