Papers › Neural Body Fitting: Unifying Deep Learning and Model-Based Human Pose and Shape Estimation
Neural Body Fitting: Unifying Deep Learning and Model-Based Human Pose and Shape Estimation
Mohamed Omran, Christoph Lassner, Gerard Pons-Moll, Peter V. Gehler, Bernt Schiele
Direct prediction of 3D body pose and shape remains a challenge even for highly parameterized deep learning models. Mapping from the 2D image space to the prediction space is difficult: perspective ambiguities make the loss function noisy and training data is scarce. In this paper, we propose a novel approach (Neural Body Fitting (NBF)). It integrates a statistical body model within a CNN, leveraging reliable bottom-up semantic body part segmentation and robust top-down body model constraints. NBF is fully differentiable and can be trained using 2D and 3D annotations. In detailed experiments, we analyze how the components of our model affect performance, especially the use of part segmentations as an explicit intermediate representation, and present a robust, efficiently trainable framework for 3D human pose estimation from 2D images with competitive results on standard benchmarks. Code will be made available at http://github.com/mohomran/neural_body_fitting
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Tasks
Results from the paper archive 2025-07-28
| Task | Dataset | Model | Metric | Value | Rank at snapshot | Leaderboard | Report |
|---|---|---|---|---|---|---|---|
| 3D Human Pose Estimation | HumanEva-I | Ours | Mean Reconstruction Error (mm) | 64 | #28 of 31 | Archive leaderboard | report |
| Monocular 3D Human Pose Estimation | Human3.6M | Neural Body Fitting (NBF) | Frames Needed | 1 | #42 of 52 | Archive leaderboard | report |
| Monocular 3D Human Pose Estimation | Human3.6M | Neural Body Fitting (NBF) | Need Ground Truth 2D Pose | No | #42 of 52 | Archive leaderboard | report |
| Monocular 3D Human Pose Estimation | Human3.6M | Neural Body Fitting (NBF) | Use Video Sequence | No | #42 of 52 | Archive leaderboard | report |
| Monocular 3D Human Pose Estimation | Human3.6M | Neural Body Fitting (NBF) | PA-MPJPE | 59.9 | #51 of 52 | Archive leaderboard | report |
Ranks are positions in the archive's leaderboards as they stood at the 2025-07-28 snapshot. Results published since then are not among these rows, so a rank here is not a current standing.
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