Patent · US Active

Capturing and quantifying loop drive ball metrics

US11972330B2 · kind B2 · utility

0Cited by

5References

18Claims

0Family size

Assignee

International Business Machines Corporation · US

Inventors

Chuan Ran · Morrisville, US
Junhui Wang · Nanhu, CN
Guandong Zhu · Raleigh, US
Yongchang Cui · Cary, US
Shuyan Lu · Cary, US
Yang Yang · Shanghai, CN

Key dates

Filing date	Sep 30, 2020
Grant date	Apr 30, 2024
Priority date	—
Expiry date	Mar 2, 2043

Classification

Technology area (CPC G)Physics
CPC primaryG06V20/46
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

Disclosed are techniques for quantifying physical qualities of a ball returned by a player using a loop drive technique, such as in table tennis, and generating a corresponding quantitative summary of the overall quality of the loop drive technique based on the quantified physical qualities. Image processing techniques are applied to historical video recordings of balls returned using loop drive techniques to quantify physical properties of said balls. A machine learning model is generated using the quantified physical properties to determine relative significance of specific qualities and their corresponding quantified values to the overall quality or success of loop drive techniques, such as in table tennis matches.

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