Patent · US Active

Method of measuring a property of a trajectory of a ball with a mobile computer device

US9652859B2 · kind B2 · utility

0Cited by

1References

20Claims

0Family size

Assignee

adidas AG · DE

Inventors

Robert Frank Kirk · Herzogenaurach, DE
Heather Frances Driscol · Herzogenaurach, DE
John Kelley · Albany, US
Lee Hickey · Sheffield, GB

Key dates

Filing date	Nov 3, 2016
Grant date	May 16, 2017
Priority date	—
Expiry date	Nov 3, 2036

Classification

Technology area (CPC G)Physics
CPC primaryG06T2207/30224
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

Methods for determining a property of a trajectory of a ball with a mobile computer device are described, which include: (a) capturing a sequence of video frames of the ball with a camera of the mobile computer device; (b) determining a first picture coordinate of the ball in a first video frame of the sequence; (c) determining a second picture coordinate of the ball in a second video frame of the sequence; and (d) computing a property of the trajectory of the ball based on a difference of the first and second picture coordinates, a time difference between the first and second video picture and a reference quantity, which may be determined based on a form and/or dimension of the ball in a picture taken with the camera.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.