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Self-Supervised Learning of 3D Human Pose Using Multi-View Geometry

CVPR 2019 · 3D vision › Human pose estimation · approach: Monocular 2D-to-3D pose lifting · 316 citations (OpenAlex)

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Measured effects reported in the paper

What was changedWhereMeasuredEffect
Add multi-view epipolar geometry to self-supervise a monocular 3D pose estimatorEpipolarPose · Human3.6MMPJPE: 76.60 vs 118.41Helped
Add a refinement unit to the self-supervised model (ablation)EpipolarPose SS · Human3.6MMPJPE: 76.60 -> 60.56Helped
Use ground-truth 2D poses instead of estimated 2D poses for triangulation (ablation)EpipolarPose SS · Human3.6MMPJPE: 76.60 -> 55.08Helped
Use an H36M-trained 2D detector instead of an MPII-trained detector (ablation)Triangulation supervision · Human3.6M triangulationMPJPE: 45.86 -> 28.37Helped
Add camera rotation R to the triangulation-based supervision (ablation)EpipolarPose SS · Human3.6MNMPJPE: 77.75 -> 75.25Helped
Add camera rotation R to the triangulation-based supervision (ablation)EpipolarPose S1 · MPI-INF-3DHPNMPJPE: 119.86 -> 115.37Helped
Remove camera rotation R (ablation)Ground-truth 2D triangulation · Human3.6M triangulationPMPJPE: 2.13 -> 15.06Hurt
Use an MPII-trained detector rather than ground-truth 2D keypoints for triangulation (ablation)Triangulation supervision · Human3.6M triangulationMPJPE: 4.38 -> 45.86Hurt
Train with only Subject 1 rather than the complete self-supervised training set (ablation)EpipolarPose · Human3.6MMPJPE: 76.60 -> 65.35Helped
Use self-supervised training instead of full 3D supervision (ablation)EpipolarPose · Human3.6MMPJPE: 51.83 -> 76.60Hurt
Use self-supervised training instead of full 3D supervision (ablation)EpipolarPose · MPI-INF-3DHPPCK: 77.5 -> 64.7Hurt
Train using only Subject 1 rather than all available unlabeled multi-view footage (ablation)EpipolarPose · Human3.6MMPJPE: 76.60 -> 65.35Helped

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