Patent ID: 11908190
Assignee: WINGFIELD GMBH
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 3:
4. The method as claimed in claim 3, wherein the object on the playing field/court is identified by means of movements of each recorded image, wherein determining the movement preferably comprises the following steps:, a) creating difference images in respect of successive images;, b) calculating absolute difference images, in which a movement is visible at two places in the difference image, it preferably being a first position, at which the ball was situated in the previous image, and a second position, at which the ball is situated in the current image;, c) generating a first movement mask for the one first difference image and a second movement mask for the one second difference image; and, d) generating a final movement mask comprising the movements in the one first movement mask and the one second movement mask; the individual pixels of both movement masks are preferably added by a bitwise AND operator.