Motion Reference Axis Comparison for Golf Swing Analysis
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Solution Overview
Problem
Conventional image processing methods fail to accurately compare and analyze the motion of objects, such as golf swings, by lacking a systematic approach to set and compare motion reference axes between different images, leading to inefficiencies in identifying and displaying motion differences.
Innovation Solution
An image processing device and method that acquires images, sets motion reference axes, compares these axes between images, and displays comparison results, enabling precise analysis and visualization of motion differences by using edge detection filters and body models to track motion across frames.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional image processing methods are used to compare motions, then the process is simple, but the accuracy of motion comparison is insufficient
Solution Approach 1:
The patent segments the motion analysis process into distinct components: acquiring a first image containing the object, setting a motion reference axis (first line) in the first image, acquiring a second image containing the target object, setting a motion comparison axis (second line) in the second image, and comparing the two axes. This segmentation allows for systematic and accurate motion comparison by breaking down the complex task into manageable steps, thereby improving measurement precision without overwhelming complexity.
Solution Approach 2:
The patent introduces motion reference axes (first line and second line) as intermediary elements to facilitate the comparison between different motions. These axes serve as mediators that transform the complex motion analysis problem into a simpler axis-based comparison, enabling accurate motion analysis while maintaining manageable processing complexity.
2Measurement precision
If motion reference axes are systematically set and compared, then motion differences can be accurately identified, but the processing time increases
Solution Approach 1:
The patent performs preliminary actions by setting motion reference axes (first line and second line) in advance before the actual motion comparison takes place. This preliminary setup of reference frameworks enables more efficient real-time comparison, as the criteria for evaluation are already established, reducing the processing time during actual motion analysis while maintaining high identification accuracy.
3Measurement precision
If detailed motion comparison is performed, then accurate analysis is achieved, but the ease of operation decreases
Solution Approach 1:
The patent extracts the essential motion comparison information by focusing specifically on the motion reference axes (first line and second line) rather than analyzing all image data in detail. This extraction of key elements maintains accurate motion analysis while simplifying the overall process, making it easier to operate by concentrating on the most relevant features for motion comparison.
Data Source
AI summary
In an image processing device (1), the motion detection unit (43) extracts an outline indicating a body from an image of each frame in moving image data of a player and sets a motion reference axis(line) to each part of the body. Then, the motion comparison unit (44) compares a moving image of the player and a moving image of a professional golfer based on a motion of a main motion reference axis(line) and generates moving image data for comparison to which comparison result data is added. Based on this moving image data for comparison, the comparison result display control unit (45) distinguishably displays a difference between the moving image of the player and the moving image of the professional golfer.