PoseLifter: Absolute 3D human pose lifting network from a single noisy 2D human pose

26 Oct 2019  ·  Ju Yong Chang, Gyeongsik Moon, Kyoung Mu Lee ·

This study presents a new network (i.e., PoseLifter) that can lift a 2D human pose to an absolute 3D pose in a camera coordinate system. The proposed network estimates the absolute 3D location of a target subject and generates an improved 3D relative pose estimation compared with existing pose-lifting methods. Using the PoseLifter with a 2D pose estimator in a cascade fashion can estimate a 3D human pose from a single RGB image. In this case, we empirically prove that using realistic 2D poses synthesized with the real error distribution of 2D body joints considerably improves the performance of our PoseLifter. The proposed method is applied to public datasets to achieve state-of-the-art 2D-to-3D pose lifting and 3D human pose estimation.

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Results from the Paper


Task Dataset Model Metric Name Metric Value Global Rank Result Benchmark
3D Human Pose Estimation Human3.6M PoseLifter (GT) Average MPJPE (mm) 38.38 # 66
Using 2D ground-truth joints Yes # 2
Multi-View or Monocular Monocular # 1
PA-MPJPE 28.78 # 4
3D Human Pose Estimation Human3.6M PoseLifter Average MPJPE (mm) 52.5 # 196
Using 2D ground-truth joints No # 2
Multi-View or Monocular Monocular # 1
PA-MPJPE 39.1 # 47
3D Human Pose Estimation MPI-INF-3DHP PoseLifter AUC 45.1 # 55
PCK 84 # 49

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