US 11,989,942 B2
Method for characterizing a dynamic occupancy of a space by two opposing teams of a game and related system
Vincent Bacot, Issy-les-Moulineaux (FR); and Christophe Clanet, Palaiseau (FR)
Assigned to Centre National de la Recherche Scientifique, Paris (FR); and Ecole Polytechnique, Palaiseau (FR)
Appl. No. 17/432,907
Filed by Centre National de la Recherche Scientifique, Paris (FR); and Ecole Polytechnique, Palaiseau (FR)
PCT Filed Feb. 21, 2020, PCT No. PCT/EP2020/054666
§ 371(c)(1), (2) Date Aug. 20, 2021,
PCT Pub. No. WO2020/169825, PCT Pub. Date Aug. 27, 2020.
Claims priority of application No. 1901772 (FR), filed on Feb. 21, 2019.
Prior Publication US 2022/0198799 A1, Jun. 23, 2022
Int. Cl. G06V 20/40 (2022.01); G06V 20/52 (2022.01); G06V 40/20 (2022.01)
CPC G06V 20/42 (2022.01) [G06V 20/52 (2022.01); G06V 40/23 (2022.01)] 23 Claims
OG exemplary drawing
 
1. A method for analyzing a dynamic occupancy of a sports field by a plurality of movable elements, a movable element being a player of one of two opposing teams of a game or a game accessory, such as a ball, a puck or a shuttlecock, each team comprising at least one player, the method comprising:
acquiring an instantaneous position for all or some of the movable elements in the sports field at at least two distinct points in time;
for each movable element, determining an instantaneous speed vector;
for each localized movable element, determining a time of movement between the instantaneous position of the movable element and all or part of the points on the sports field, depending on the instantaneous speed vector, and of a movement model associated with the movable element;
for each movable element located and for all or part of the points of the sports field, determining a time ahead of the movable element in the sports field at the point, comprising comparing the duration of movement of the movable element towards the point of the sports field with the duration of movement of another movable element towards the same point; and
for all or some of the located players, delimiting an area of dominance of the player in the sports field, the area of dominance comprising points in the sports field for which the time ahead of the player is greater than a predetermined threshold.