3D Laser Joint-Posture Scoring for Gymnastic Skill Precision
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing scoring systems in artistic gymnastics struggle to accurately judge both the success or failure of a skill and the degree of perfection of the skill due to ambiguous rulebook expressions and the difficulty in measuring body angles with human eyes, leading to inconsistent scoring.
Innovation Solution
A scoring method and apparatus utilizing a 3D laser sensor and a scoring apparatus that analyzes sensor data to estimate joint positions and postures, applying predefined success conditions to evaluate both the success and perfection of skills through a database and evaluation indices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If human referees visually judge body orientation angles and skill execution, then the scoring process is simple and fast, but the measurement precision and judgment accuracy deteriorate due to difficulty in accurately measuring angles with human eyes
Solution Approach 1:
The patent replaces the human visual judgment system with an automated image processing and measurement system. The system captures images of gymnasts in motion, automatically detects body orientation angles through image analysis, and calculates precise angular measurements without requiring human referees to visually estimate angles. This substitution of mechanical/automated systems for human judgment resolves the contradiction by providing both high precision measurement and automated processing speed.
Solution Approach 2:
The patent introduces an intermediary measurement system consisting of cameras, image processing algorithms, and angle calculation software that acts as a mediator between the gymnast's performance and the referee's judgment. This intermediary automatically measures body orientation angles and provides objective data to referees, eliminating the need for referees to directly visually measure angles while maintaining the overall scoring workflow.
2Adaptability or versatility
If human referees interpret ambiguous rulebook expressions, then the scoring system remains flexible and adaptable, but the reliability and consistency of scoring deteriorate due to difficulty in scoring fairly when rules contain ambiguous expressions
Solution Approach 1:
The patent segments the scoring process into distinct components: objective measurement of body angles, automated detection of skill execution, and separate evaluation of difficulty and perfection. By dividing the judging process into measurable components, the system reduces the impact of ambiguous rule interpretations while maintaining the ability to handle complex gymnastic skills through structured evaluation criteria.
Solution Approach 2:
The patent implements a feedback mechanism where the automated measurement system provides objective data about body orientation angles and skill execution to referees. This feedback loop allows referees to make more informed judgments based on precise measurements rather than subjective visual estimation, improving consistency while maintaining the flexibility to interpret complex skill requirements.
3Loss of information
If multiple evaluation criteria are simultaneously assessed, then the comprehensiveness of scoring improves, but the device complexity and difficulty of detection increase due to need to judge both success or failure and degree of perfection at the same time
Solution Approach 1:
The patent segments the evaluation into distinct modules: one for detecting skill success/failure and another for assessing degree of perfection through body angle measurement. The system separately evaluates whether required body orientations are achieved and how closely they match ideal positions, then combines these assessments. This segmentation reduces the complexity of simultaneous multi-criteria evaluation by breaking it into manageable, automated components.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables precise and consistent scoring by objectively judging the success and perfection of gymnastic skills, reducing human error and ambiguity in scoring competitions.
Implementation Method 1
Based on sensor data on a player who gives a performance, joint information of the player is extracted, and postures under a performance given by the player are estimated
Data Source
Figure 1~2
Figure 3
Figure 4
AI summary
A scoring apparatus (100) acquires sensor data obtained by measuring a competitor in a scoring competition. The scoring apparatus (100) extracts joint information of the competitor, based on an analysis result of the sensor data. The scoring apparatus (100) acquires an evaluation item and an evaluation index that correspond to the joint information of the competitor, based on a rule in which a posture specified by a series of joint motions and joint angles, the evaluation item, and the evaluation index for performance evaluation are associated with each other. The scoring apparatus (100) evaluates the success or failure of a skill and a degree of perfection of the skill in a performance of the competitor, based on the analysis result, the evaluation item, and the evaluation index.