Motion Data Screening with Key Point Validation for Robot Gestures

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Solution Overview

Problem

Existing technologies face challenges in securing and processing motion data for robot gesture generation, leading to inefficient and noisy learning processes due to the inclusion of erroneous data, which degrades the quality of robot interactions.

Innovation Solution

A system and method for screening motion data by extracting key point information, detecting and correcting errors, and analyzing motion variations to selectively construct high-quality data for learning, using a reference motion model and weight functions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a large amount of motion data is collected to improve robot gesture generation, then the diversity and quality of gesture expressions improve, but the data processing complexity and computational resources required increase significantly

Engineering Contradiction:
Improvegesture expression diversityVSAvoiddata processing complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent extracts only the essential motion key point information from large-scale motion data sets rather than processing all raw data. The motion data extraction unit identifies and extracts key points that are most relevant for robot gesture generation, filtering out redundant information and reducing computational complexity while maintaining gesture diversity.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent performs preliminary screening and validation of motion data before the main learning process. By pre-processing data to identify valid motion patterns and remove erroneous data in advance, the system reduces the computational burden during training while ensuring high-quality input data for gesture generation.

Inventive Principle:
Principle #10Preliminary action

2Quantity of substance

If all collected motion data is used for learning, then more motion patterns are covered, but erroneous data and noise degrade the learning quality and generation effectiveness

Engineering Contradiction:
Improvemotion data volumeVSAvoidlearning quality
Core Design Contradiction:
Quantity of substanceVSReliability

Solution Approach 1:

The patent implements preliminary validation and screening of motion data using predetermined criteria and reference motion models before data is used for learning. This pre-processing step identifies and filters out erroneous data, ensuring that only high-quality valid motion data enters the learning process, thereby maintaining both data volume and learning quality.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent employs feedback mechanisms where the system continuously evaluates motion data quality during the screening process. Validity determination units assess whether extracted motion key points meet predetermined criteria, and this feedback loop ensures that erroneous data is identified and excluded, improving overall learning quality while preserving useful motion patterns.

Inventive Principle:
Principle #23Feedback

3Reliability

If motion data screening is performed to improve data quality, then learning effectiveness improves, but the processing time and computational overhead increase

Engineering Contradiction:
Improvedata qualityVSAvoidprocessing time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The patent divides the motion data screening process into multiple independent modules: motion key point extraction, validity determination, and motion variation analysis. Each module handles a specific aspect of data quality assessment independently, allowing for efficient parallel processing and reducing overall processing time while maintaining comprehensive data quality checks.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent applies different screening criteria and validation methods to different types of motion data and key points based on their specific characteristics. Rather than applying a uniform screening process to all data, the system tailors validation approaches to local data characteristics, improving efficiency by focusing computational resources where they are most needed.

Inventive Principle:
Principle #3Local quality

Data Source

PatentUS20250282049A1System and method for screening motion data
Publication Date: 2025.09.11 ELECTRONICS & TELECOMM RES INST
  • US20250282049A1 patent drawing
  • US20250282049A1 patent drawing
  • US20250282049A1 patent drawing

AI summary

Provided is a method of screening motion data. The method includes extracting motion key point information from a motion data set, determining whether motion data corresponding to the extracted motion key point information are valid data based on at least one of predetermined auxiliary information and a pre-stored reference motion model, and screening motion data for learning from the motion data set based on a motion variation of the motion data when the motion data are valid data as a result of the determination.