Apparatus and method for analyzing a golf swing
First Claim
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1. An apparatus for providing instructions to adjust a three-dimensional (3D) motion of a golf swing involving a player and club, comprising:
- a motion-capture device for tracking the three-dimensional (3D) motion of the player and the club during the golf swing, the motion-capture device configured to capture the 3D motion as kinematic data that are related to forces that cause or are associated with the 3D motion;
a processor connected to the motion-capture device and configured to;
model the player and the club using a plurality of rigid segments and a plurality of joints to represent the player and the club, wherein the plurality of rigid segments are linked using the plurality of joints,determine, sequentially joint-by-joint or segment-by-segment in a distal-to-proximal direction or a proximal-to-distal direction along the plurality of rigid segments linked by the plurality of joints, one or more kinetic parameters for each of the plurality of joints that represent the player and the club based on the kinematic data, anddetermine an amount or rate of energy generated across one or more joints of the plurality of joints that link the plurality of rigid segments during the golf swing; and
an output device that is configured to output instructions based on the one or more kinetic parameters and the amount or rate of energy generated.
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Abstract
The system analyzes a golf swing, determining individual joint powers generated in a player'"'"'s body with high levels of accuracy, using inverse dynamics and detailed modelling of the player'"'"'s body. A depth camera is used to measure body segment shapes and a magnetic motion capture system and 3D force plate system used to measure swing parameters. The system produces an expeditious analysis without the need for highly skilled technical personnel and is suitable for individual coaching and compilation of large golf swing databases.
19 Citations
48 Claims
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1. An apparatus for providing instructions to adjust a three-dimensional (3D) motion of a golf swing involving a player and club, comprising:
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a motion-capture device for tracking the three-dimensional (3D) motion of the player and the club during the golf swing, the motion-capture device configured to capture the 3D motion as kinematic data that are related to forces that cause or are associated with the 3D motion; a processor connected to the motion-capture device and configured to; model the player and the club using a plurality of rigid segments and a plurality of joints to represent the player and the club, wherein the plurality of rigid segments are linked using the plurality of joints, determine, sequentially joint-by-joint or segment-by-segment in a distal-to-proximal direction or a proximal-to-distal direction along the plurality of rigid segments linked by the plurality of joints, one or more kinetic parameters for each of the plurality of joints that represent the player and the club based on the kinematic data, and determine an amount or rate of energy generated across one or more joints of the plurality of joints that link the plurality of rigid segments during the golf swing; and an output device that is configured to output instructions based on the one or more kinetic parameters and the amount or rate of energy generated. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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28. A method of providing instructions to adjust a three-dimensional (3D) motion of a golf swing involving a player and club, comprising:
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capturing, using a motion-capture device, the three-dimensional (3D) motion of the player and the club during the golf swing as kinematic data that are related to forces that cause or are associated with the 3D motion; modelling, using a processor, the player and the club as a plurality of rigid segments and a plurality of joints to represent the player and the club, wherein the plurality of rigid segments are linked by the plurality of joints; determining, using the processor, sequentially joint-by-joint or segment-by-segment in a distal-to-proximal direction or a proximal-to-distal direction along the plurality of rigid segments linked by the plurality of joints, one or more kinetic parameters for each of the plurality of joints that represent the player and the club based on the kinematic data; determining, using the processor, an amount or rate of energy generated across one or more joints of the plurality of joints that link the plurality of rigid segments during the golf swing; and outputting, using an output device, instructions based on the one or more kinetic parameters and the amount or rate of energy generated. - View Dependent Claims (29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48)
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Specification