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3D Putting Kinematics

This research was conducted to determine the validity and reliability of the TOMI system for measuring the 3D kinematics of the putter during the putting stroke. The findings were published in the Journal of Sports Sciences in 2010.

The two simulations below were developed to test the ability of our data processing techniques (filtering, upsampling etc.) to return the true 3D kinematics of a real putter based on raw data collected by the TOMI system. We had to be able to separate out the errors in TOMI's ability to collect data and our algorithms' ability to process that data. Since the simulations below were created using forward dynamic methods, the true 3D kinematics of the putter head were known.
The golfer portion of the model generated a swing which is very typical of the putter motion created by real golfers. The TOMI clip was represented by attaching four simulated spherical markers to the shaft. The 3D coordinates (sampled at 30 Hz) from each of these markers was entered into our data processing algorithms which output various kinematics of the putter head (at 1000 Hz). The output was in perfect agreement with the true kinematics.
The golfer portion of the model generated a swing which is very typical of the putter motion created by real golfers. The TOMI clip was represented by attaching four simulated spherical markers to the shaft. The 3D coordinates (sampled at 30 Hz) from each of these markers was entered into our data processing algorithms which output various kinematics of the putter head (at 1000 Hz). The output was in perfect agreement with the true kinematics.