Golf Swing Analysis Using Launch Monitor Feature Estimation
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Solution Overview
Problem
Existing swing analyzing apparatuses require a photography apparatus to capture images from above, increasing size and installation complexity, and incur labor and costs, making them difficult to install in certain environments.
Innovation Solution
A swing analyzing apparatus that utilizes existing golf launch monitors to obtain feature quantities, employing a learning model to estimate the movement of a clubface and trajectory without requiring a photography apparatus from above.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a photography apparatus is installed to capture images from above, then the accuracy of clubface movement and trajectory analysis is improved, but the device size and installation complexity increase
Solution Approach 1:
The patent extracts the essential measurement function from the complex photography apparatus and implements it using existing golf launch monitor technology. By utilizing the launch monitor's existing sensors and processing capabilities to obtain feature quantities and estimate clubface movement, the system removes the need for separate overhead photography equipment while maintaining analysis accuracy.
Solution Approach 2:
The patent makes the existing golf launch monitor perform multiple functions: it not only tracks ball flight data but also captures feature quantities related to clubhead motion and estimates clubface movement trajectories. This multi-functional approach eliminates the need for dedicated photography apparatus while comprehensive swing analysis.
2Measurement precision
If a photography apparatus is installed to capture images from above, then the accuracy of clubface movement and trajectory analysis is improved, but installation costs and labor increase
Solution Approach 1:
The patent enables the existing golf launch monitor to serve itself by using its own sensors and processing power to extract feature quantities and estimate clubface movement. This self-service approach eliminates the need for external photography equipment and associated installation costs, while still providing accurate trajectory analysis.
3Device complexity
If existing golf launch monitors are used to obtain feature quantities, then installation complexity and costs are reduced, but the accuracy of clubface movement and trajectory estimation must be maintained
Solution Approach 1:
The patent replaces the mechanical photography and image processing system with a computational estimation system. Instead of using cameras to physically capture and analyze clubface images, the system uses mathematical models that estimate clubface movement and trajectory based on feature quantities from the launch monitor, achieving similar accuracy with simpler installation.
Solution Approach 2:
The patent transforms the measurement approach by changing from direct optical measurement (photography) to indirect computational measurement (estimation based on feature quantities). By using different parameters and calculation methods, the system maintains measurement precision while simplifying the physical apparatus required.
Data Source
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Figure 3A~3B
AI summary
To provide a swing analyzing apparatus and a swing analyzing program capable of accurately determining movement of a clubface of a clubhead and a movement trajectory of the clubhead employing existing projectile measuring instruments and the like, without installing a photography apparatus to capture images of a swing from above. A golf swing analyzing apparatus includes: a feature quantity obtaining unit (21) that obtains a plurality of feature quantities at a point in time when a clubhead 41a of a golf club (41) impacts a golf ball (42) when the golf club (41) is swung, ad an estimating unit (22) that estimates at least one of temporal changes in an angle of a clubface of the clubhead and a movement trajectory of the clubhead (41a), based on the plurality of feature quantities obtained by the feature quantity obtaining unit (21).