Papers › I2L-MeshNet: Image-to-Lixel Prediction Network for Accurate 3D Human Pose and Mesh...

I2L-MeshNet: Image-to-Lixel Prediction Network for Accurate 3D Human Pose and Mesh Estimation from a Single RGB Image

9 Aug 2020ECCV 2020 8arXiv:2008.03713archive 2025-07-28

Gyeongsik Moon, Kyoung Mu Lee

Most of the previous image-based 3D human pose and mesh estimation methods estimate parameters of the human mesh model from an input image. However, directly regressing the parameters from the input image is a highly non-linear mapping because it breaks the spatial relationship between pixels in the input image. In addition, it cannot model the prediction uncertainty, which can make training harder. To resolve the above issues, we propose I2L-MeshNet, an image-to-lixel (line+pixel) prediction network. The proposed I2L-MeshNet predicts the per-lixel likelihood on 1D heatmaps for each mesh vertex coordinate instead of directly regressing the parameters. Our lixel-based 1D heatmap preserves the spatial relationship in the input image and models the prediction uncertainty. We demonstrate the benefit of the image-to-lixel prediction and show that the proposed I2L-MeshNet outperforms previous methods. The code is publicly available https://github.com/mks0601/I2L-MeshNet_RELEASE.

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Tasks

3D Hand Pose Estimation3D Human Pose Estimation3D Human ReconstructionPrediction

Results from the paper archive 2025-07-28

TaskDatasetModelMetricValueRank at snapshotLeaderboardReport
3D Hand Pose Estimation FreiHAND I2L-MeshNet PA-F@15mm 0.973 #23 of 33 Archive leaderboard report
3D Hand Pose Estimation FreiHAND I2L-MeshNet PA-F@5mm 0.681 #23 of 33 Archive leaderboard report
3D Hand Pose Estimation FreiHAND I2L-MeshNet PA-MPJPE 7.4 #23 of 33 Archive leaderboard report
3D Hand Pose Estimation FreiHAND I2L-MeshNet PA-MPVPE 7.6 #23 of 33 Archive leaderboard report
3D Hand Pose Estimation HO-3D v2 I2L-MeshNet AUC_J 0.775 #19 of 24 Archive leaderboard report
3D Hand Pose Estimation HO-3D v2 I2L-MeshNet AUC_V 0.722 #19 of 24 Archive leaderboard report
3D Hand Pose Estimation HO-3D v2 I2L-MeshNet F@15mm 0.932 #19 of 24 Archive leaderboard report
3D Hand Pose Estimation HO-3D v2 I2L-MeshNet F@5mm 0.409 #19 of 24 Archive leaderboard report
3D Hand Pose Estimation HO-3D v2 I2L-MeshNet PA-MPJPE (mm) 11.2 #19 of 24 Archive leaderboard report
3D Hand Pose Estimation HO-3D v2 I2L-MeshNet PA-MPVPE 13.9 #19 of 24 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.

Methods

Heatmap

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