US 12,263,393 B2
System and method for determining impact characteristics of sports ball striking element
Fredrik Tuxen, Rungsted Kyst (DK)
Assigned to TRACKMAN A/S, Hørsholm (DK)
Filed by TRACKMAN A/S, Vedbaek (DK)
Filed on Feb. 28, 2023, as Appl. No. 18/176,078.
Application 18/176,078 is a continuation of application No. 17/249,062, filed on Feb. 18, 2021, granted, now 11,612,801.
Application 17/249,062 is a continuation of application No. 17/247,431, filed on Dec. 10, 2020, granted, now 11,439,886, issued on Sep. 13, 2022.
Application 17/247,431 is a continuation of application No. 16/224,161, filed on Dec. 18, 2018, granted, now 10,953,303, issued on Mar. 23, 2021.
Claims priority of provisional application 62/609,867, filed on Dec. 22, 2017.
Prior Publication US 2023/0201692 A1, Jun. 29, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. A63B 71/06 (2006.01); A63B 24/00 (2006.01); A63B 69/36 (2006.01); G06T 7/246 (2017.01); G06T 7/73 (2017.01)
CPC A63B 71/06 (2013.01) [A63B 24/0062 (2013.01); A63B 69/36 (2013.01); G06T 7/246 (2017.01); G06T 7/248 (2017.01); G06T 7/73 (2017.01); A63B 24/0003 (2013.01); A63B 2024/0031 (2013.01); A63B 2220/806 (2013.01); A63B 2220/89 (2013.01); G06T 2207/30224 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A computer-implemented method for determining impact characteristics of a ball striking element with a sports ball, comprising:
selecting a first image from a sequence of images received from an imager captured within a predetermined time span of an impact of the sports ball with the ball striking element;
determining an outline of a portion of the ball striking element in the first image based on computer vision techniques applied to the first image;
identifying a fix line on the ball striking element based on the determined outline of the ball striking element;
determining an impact time of the impact of the sports ball with the ball striking element;
determining an angle of the fix line at the impact time from the sequence of images;
determining an impact characteristic of the ball striking element with the sports ball based on the angle of the fix line at the impact time; and
outputting, to a display, the impact characteristic.