Semi-supervised 3D Hand-Object Pose Estimation via Pose Dictionary Learning

• URL: http://arxiv.org/abs/2107.07676v1
• Date: Fri, 16 Jul 2021 02:50:17 GMT
• Title: Semi-supervised 3D Hand-Object Pose Estimation via Pose Dictionary Learning
• Authors: Zida Cheng, Siheng Chen, Ya Zhang
• Abstract summary: Current hand-object pose estimation methods require detailed 3D labels, which are expensive and labor-intensive. We propose a semi-supervised 3D hand-object pose estimation method with two key techniques: pose dictionary learning and an object-oriented coordinate system. Our method reduces estimation error by 19.5% / 24.9% for hands/objects compared to straightforward use of labeled data.
• Score: 27.78922896432688
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: 3D hand-object pose estimation is an important issue to understand the interaction between human and environment. Current hand-object pose estimation methods require detailed 3D labels, which are expensive and labor-intensive. To tackle the problem of data collection, we propose a semi-supervised 3D hand-object pose estimation method with two key techniques: pose dictionary learning and an object-oriented coordinate system. The proposed pose dictionary learning module can distinguish infeasible poses by reconstruction error, enabling unlabeled data to provide supervision signals. The proposed object-oriented coordinate system can make 3D estimations equivariant to the camera perspective. Experiments are conducted on FPHA and HO-3D datasets. Our method reduces estimation error by 19.5% / 24.9% for hands/objects compared to straightforward use of labeled data on FPHA and outperforms several baseline methods. Extensive experiments also validate the robustness of the proposed method.

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