Papers › UniHPE: Towards Unified Human Pose Estimation via Contrastive Learning

UniHPE: Towards Unified Human Pose Estimation via Contrastive Learning

24 Nov 2023arXiv:2311.16477archive 2025-07-28

Zhongyu Jiang, Wenhao Chai, Lei LI, Zhuoran Zhou, Cheng-Yen Yang, Jenq-Neng Hwang

In recent times, there has been a growing interest in developing effective perception techniques for combining information from multiple modalities. This involves aligning features obtained from diverse sources to enable more efficient training with larger datasets and constraints, as well as leveraging the wealth of information contained in each modality. 2D and 3D Human Pose Estimation (HPE) are two critical perceptual tasks in computer vision, which have numerous downstream applications, such as Action Recognition, Human-Computer Interaction, Object tracking, etc. Yet, there are limited instances where the correlation between Image and 2D/3D human pose has been clearly researched using a contrastive paradigm. In this paper, we propose UniHPE, a unified Human Pose Estimation pipeline, which aligns features from all three modalities, i.e., 2D human pose estimation, lifting-based and image-based 3D human pose estimation, in the same pipeline. To align more than two modalities at the same time, we propose a novel singular value based contrastive learning loss, which better aligns different modalities and further boosts the performance. In our evaluation, UniHPE achieves remarkable performance metrics: MPJPE 50.5mm on the Human3.6M dataset and PAMPJPE 51.6mm on the 3DPW dataset. Our proposed method holds immense potential to advance the field of computer vision and contribute to various applications.

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Tasks

2D Human Pose Estimation3D Human Pose EstimationAction RecognitionContrastive LearningObject TrackingPose Estimation

Results from the paper archive 2025-07-28

TaskDatasetModelMetricValueRank at snapshotLeaderboardReport
3D Human Pose Estimation 3DPW UniHPE (GT) PA-MPJPE 51.6 #76 of 119 Archive leaderboard report
3D Human Pose Estimation 3DPW UniHPE-w48 PA-MPJPE 65.7 #100 of 119 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

ALIGNContrastive Learning

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