Golf Swing Analysis Using Synchronized Dual Cameras
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Solution Overview
Problem
Conventional swing analysis apparatuses for golf clubs either have poor measurement accuracy due to simple designs that are difficult to carry or are large, cumbersome, and require long measurement times for high accuracy, and fail to accurately measure the corresponding behavior of both the golf club and ball.
Innovation Solution
A swing analysis apparatus comprising a club camera and a ball camera synchronized with sensors to capture and process the behavior of the golf club and ball, allowing for accurate measurement of club and ball behavior values such as face angle, head orbital angle, and spin, while being portable and efficient in measurement time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a simple constitution is used for the analysis apparatus, then ease of operation and portability are improved, but measurement precision deteriorates
Solution Approach 1:
The apparatus is divided into two separate camera systems: a club camera for capturing golf club behavior and a ball camera for capturing golf ball behavior. Each camera system independently measures its target, allowing for specialized optimization of each measurement path while keeping the overall apparatus structure simple and portable.
Solution Approach 2:
A synchronization mechanism acts as an intermediary between the club camera and ball camera, coordinating their operations to capture data at corresponding time points. This synchronization enables accurate correlation of club and ball behavior without requiring complex integrated measurement systems.
2Measurement precision
If excellent measurement accuracy is achieved, then measurement precision is improved, but device complexity and portability worsen
Solution Approach 1:
Instead of using a single complex measurement system, the apparatus segments the measurement function into two simpler, dedicated camera systems. Each camera focuses on one target (club or ball), reducing the complexity of individual measurement paths while maintaining high overall measurement precision.
Solution Approach 2:
The apparatus uses optical copying through cameras to capture images of the golf club and golf ball. This non-contact optical measurement method achieves high precision without requiring physical sensors or markers on the equipment, keeping the apparatus structure simple and portable.
3Measurement precision
If excellent measurement accuracy is achieved, then measurement precision is improved, but measurement time increases
Solution Approach 1:
The club camera and ball camera operate in synchronized periodic cycles, capturing images at predetermined time intervals. This coordinated periodic action ensures that club and ball data are collected simultaneously at corresponding swing phases, achieving accurate correlation without requiring lengthy sequential measurement processes.
Solution Approach 2:
The cameras continuously capture images throughout the golf swing motion, ensuring that no critical measurement moment is missed. This continuous capture approach, combined with synchronization, allows complete swing analysis in a single continuous operation rather than requiring multiple separate measurements.
4Device complexity
If club and ball behavior are measured in one image plane area, then device complexity is reduced, but position accuracy deteriorates
Solution Approach 1:
The measurement space is segmented into two separate image planes: one dedicated to capturing the golf club and another dedicated to capturing the golf ball. This spatial segmentation eliminates interference between the two measurement targets, allowing each camera to accurately track its specific target without position confusion, while the synchronization mechanism coordinates the two independent measurement systems.
Data Source
AI summary
A swing analysis apparatus 10 for a golf club includes a club camera 20 continuously photographing a behavior of a golf club 34, a ball camera 22 continuously photographing a behavior of a golf ball 36, and an information processor 32. The club camera 20 is positioned in front of a golf player. A straight line C passes through a center of a lens of the club camera 22 and a center of the golf ball 36. An angle θc between the straight line C and a vertical line Z is 10 degrees or greater and 20 degrees or less. The information processor 32 measures a synchronized club behavior value from synchronized club image data. The information processor 32 measures a synchronized ball behavior value from synchronized ball image data. The information processor 32 stores the synchronized club behavior value and the synchronized ball behavior value.