3D human pose estimation has been researched for decades with promising fruits. 3D human pose lifting is one of the promising research directions toward the task where both estimated pose and ground truth pose data are used for training. Existing pose lifting works mainly focus on improving the performance of estimated pose, but they usually underperform when testing on the ground truth pose data. We observe that the performance of the estimated pose can be easily improved by preparing good quality 2D pose, such as fine-tuning the 2D pose or using advanced 2D pose detectors. As such, we concentrate on improving the 3D human pose lifting via ground truth data for the future improvement of more quality estimated pose data. Towards this goal, a simple yet effective model called Global-local Adaptive Graph Convolutional Network (GLA-GCN) is proposed in this work. Our GLA-GCN globally models the spatiotemporal structure via a graph representation and backtraces local joint features for 3D human pose estimation via individually connected layers. To validate our model design, we conduct extensive experiments on three benchmark datasets: Human3.6M, HumanEva-I, and MPI-INF-3DHP. Experimental results show that our GLA-GCN implemented with ground truth 2D poses significantly outperforms state-of-the-art methods (e.g., up to around 3%, 17%, and 13% error reductions on Human3.6M, HumanEva-I, and MPI-INF-3DHP, respectively).

通过使用全局本地自适应图卷积网络(GLA-GCN)并利用地面实况数据，作者针对3D人体姿势估计中的姿势抬升问题提出了一种简单而有效的模型设计，实验证明该设计在三个基准数据集上表现出了明显的优于现有方法的效果。

全局 - 局部自适应图卷积网络 用于 3D 人体

全局 - 局部自适应图卷积网络用于 3D 人体