Category-Level 6D Object Pose Estimation via Cascaded Relation and Recurrent Reconstruction Networks

• URL: http://arxiv.org/abs/2108.08755v1
• Date: Thu, 19 Aug 2021 15:46:52 GMT
• Title: Category-Level 6D Object Pose Estimation via Cascaded Relation and Recurrent Reconstruction Networks
• Authors: Jiaze Wang, Kai Chen, Qi Dou
• Abstract summary: Category-level 6D pose estimation is fundamental to many scenarios such as robotic manipulation and augmented reality. We achieve accurate category-level 6D pose estimation via cascaded relation and recurrent reconstruction networks. Our method exceeds the latest state-of-the-art SPD by $4.9%$ and $17.7%$ on the CAMERA25 dataset.
• Score: 22.627704070200863
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Category-level 6D pose estimation, aiming to predict the location and orientation of unseen object instances, is fundamental to many scenarios such as robotic manipulation and augmented reality, yet still remains unsolved. Precisely recovering instance 3D model in the canonical space and accurately matching it with the observation is an essential point when estimating 6D pose for unseen objects. In this paper, we achieve accurate category-level 6D pose estimation via cascaded relation and recurrent reconstruction networks. Specifically, a novel cascaded relation network is dedicated for advanced representation learning to explore the complex and informative relations among instance RGB image, instance point cloud and category shape prior. Furthermore, we design a recurrent reconstruction network for iterative residual refinement to progressively improve the reconstruction and correspondence estimations from coarse to fine. Finally, the instance 6D pose is obtained leveraging the estimated dense correspondences between the instance point cloud and the reconstructed 3D model in the canonical space. We have conducted extensive experiments on two well-acknowledged benchmarks of category-level 6D pose estimation, with significant performance improvement over existing approaches. On the representatively strict evaluation metrics of $3D_{75}$ and $5^{\circ}2 cm$, our method exceeds the latest state-of-the-art SPD by $4.9\%$ and $17.7\%$ on the CAMERA25 dataset, and by $2.7\%$ and $8.5\%$ on the REAL275 dataset. Codes are available at https://wangjiaze.cn/projects/6DPoseEstimation.html.

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