arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2008.09047cs.CV
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Pose2Mesh:用于三维人体姿态和从二维人体姿态恢复网格的图卷积网络

Pose2Mesh: Graph Convolutional Network for 3D Human Pose and Mesh Recovery from a 2D Human Pose

Seoul National University(首尔大学)

Hongsuk Choi, Gyeongsik Moon, Kyoung Mu Lee

摘要:

大多数最近的基于深度学习的3D人体姿态和网格估计方法从输入图像回归人体网格模型(诸如SMPL和MANO)的姿态和形状参数。这些方法的第一个弱点是外观域间隙问题,这是由于来自受控环境(例如实验室)的训练数据与来自野外环境的测试数据之间的不同图像外观。第二个弱点是,由于3D旋转的表示问题,姿态参数的估计是相当具有挑战性的。为了克服上述弱点,我们提出了Pose2Mesh,这是一种新的基于图卷积神经网络(GraphCNN)的系统,它直接从2D人体姿势估计人体网格顶点的3D坐标。作为输入的2D人体姿势提供基本的人体关节信息,同时在两个域之间具有相对均匀的几何特性。此外,所提出的系统避免了表示问题,同时以粗到细的方式使用GraphCNN充分利用网格拓扑。我们证明了我们的Pose2Mesh在各种基准数据集上的性能优于以前的3D人体姿势和网格估计方法。有关代码,请参见https://github.com/hongsukchoi/Pose2Mesh_RELEASE。

英文摘要:

Most of the recent deep learning-based 3D human pose and mesh estimation methods regress the pose and shape parameters of human mesh models, such as SMPL and MANO, from an input image. The first weakness of these methods is an appearance domain gap problem, due to different image appearance between train data from controlled environments, such as a laboratory, and test data from in-the-wild environments. The second weakness is that the estimation of the pose parameters is quite challenging owing to the representation issues of 3D rotations. To overcome the above weaknesses, we propose Pose2Mesh, a novel graph convolutional neural network (GraphCNN)-based system that estimates the 3D coordinates of human mesh vertices directly from the 2D human pose. The 2D human pose as input provides essential human body articulation information, while having a relatively homogeneous geometric property between the two domains. Also, the proposed system avoids the representation issues, while fully exploiting the mesh topology using a GraphCNN in a coarse-to-fine manner. We show that our Pose2Mesh outperforms the previous 3D human pose and mesh estimation methods on various benchmark datasets. For the codes, see https://github.com/hongsukchoi/Pose2Mesh_RELEASE.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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