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:
Feb. 28, 2023

Filed:

Jun. 01, 2022
Applicant:

Nex Team Inc., San Jose, CA (US);

Inventors:

Keng Fai Lee, Cupertino, CA (US);

Tin Yin Lam, Fremont, CA (US);

Wing Hung Chan, Hong Kong, HK;

Qi Zhang, Hong Kong, HK;

On Loy Sung, Hong Kong, HK;

Man Hon Chan, Hong Kong, HK;

Assignee:

NEX Team Inc., San Jose, CA (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G06V 20/40 (2022.01); G06K 9/62 (2022.01); G06N 20/00 (2019.01); G06Q 50/00 (2012.01); G06T 7/11 (2017.01); G06T 7/20 (2017.01); G06V 10/25 (2022.01); G06V 10/40 (2022.01); G06V 10/44 (2022.01); G06V 40/20 (2022.01); G11B 27/00 (2006.01); G06N 3/08 (2006.01); G06V 10/764 (2022.01); G06V 10/82 (2022.01); G06N 3/04 (2023.01);
U.S. Cl.
CPC ...
G06V 20/42 (2022.01); G06K 9/627 (2013.01); G06N 20/00 (2019.01); G06Q 50/00 (2013.01); G06T 7/11 (2017.01); G06T 7/20 (2013.01); G06V 10/25 (2022.01); G06V 10/40 (2022.01); G06V 10/454 (2022.01); G06V 40/23 (2022.01); G11B 27/00 (2013.01); G06N 3/0454 (2013.01); G06N 3/08 (2013.01); G06T 2207/30224 (2013.01); G06T 2207/30241 (2013.01);
Abstract

Methods and systems for determining a ball shot attempt location on a ball court are disclosed. The method includes receiving an input video, where the input video includes the ball shot attempt and one or more players; receiving a declared ball shot attempt; determining a potential shooter by detecting a moving object flow in the input video; determining a potential shooter image region in the image plane by analyzing an overlapping image area of the ball trajectory and the potential shooter; determining a shooter foot-on-court time; determining a most probable pair of shooter legs in the potential shooter image region; determining a shooter foot location based on the most probable pair of shooter legs; and determining a ball shot attempt location on the ball court by applying a camera projection to the shooter foot location.


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