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A framework of imitative behavior analysis for animal exercise courses via human pose estimation
Yu Qi1, Chongyang Zhang2, Siyu Xiong1
1Graduate School of Bionics, Computer and Media Sciences, Tokyo University of Technology, 1404-1 Katakuramachi, Hachioji, Tokyo, 192-0982, Japan.
Scientific Reports
|November 17, 2025
Summary
This study introduces a quantitative framework using pose estimation to evaluate imitative behavior in performance education. The Human Pose Estimation-Imitative Behavior Analysis (HPE-IBA) framework offers objective assessments, improving skill development for students.
Area of Science:
- Performance Education
- Behavioral Analysis
- Biomechanical Analysis
Background:
- Imitative behavior is crucial in performance education, particularly in Animal Exercise courses.
- Current assessment methods rely on subjective instructor judgment, leading to inconsistent evaluations.
- Objective assessment tools are needed to enhance skill development and identify deficiencies.
Purpose of the Study:
- To propose and validate a quantitative framework for evaluating imitative behavior in performance education.
- To introduce the Human Pose Estimation-Imitative Behavior Analysis (HPE-IBA) framework.
- To provide a foundation for objective, motion-based performance analysis.
Main Methods:
- Utilized a standard RGB camera to capture motion data from students and gorillas.
- Employed pose estimation with MediaPipe to extract 3D joint coordinates and calculate dynamic joint angles.
- Applied correlation analysis and two-way ANOVA to analyze imitation performance and influencing factors.
Main Results:
- The HPE-IBA framework successfully quantified imitative behavior using pose estimation.
- A statistically significant interaction between training status and gender (p<0.01) was observed in imitation performance.
- Specific joint patterns, including the right elbow and right knee, were key indicators of this interaction.
Conclusions:
- The proposed HPE-IBA framework offers an objective and standardized method for assessing imitative behavior in performance education.
- This approach enhances the application of pose estimation in acting and performance analysis.
- The framework provides a basis for broader applications in analyzing human and animal motion.

