Impact of video resolution on center of mass estimation: A cross-models analysis (preliminary study)
Résumé
Recent advances in markerless motion capture (MC) have made biomechanical analysis more accessible. However, video parameters might affect pose estimation accuracy. This study investigates how video quality (540p and 1080p at 16:9) influences 3D center of mass (CoM) accuracy across different triangulated 2D pose estimation algorithms (RTMpose, OpenPose, OpenPose with marker augmentation and Theia3D). A healthy participant (age: 52) performed 60 statics standings trials. CoM estimations from each algorithm were compared against Theia3D. Results indicate that video quality significantly affects estimation accuracy, with varying impacts across algorithms. Our findings suggest considering video settings in markerless MC.
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