Human pose forecasting garners attention for its diverse applications. However, challenges in modeling the multi-modal nature of human motion and intricate interactions among agents persist, particularly with longer timescales and more agents. In this paper, we propose an interaction-aware trajectory-conditioned long-term multi-agent human pose forecasting model, utilizing a coarse-to-fine prediction approach: multi-modal global trajectories are initially forecasted, followed by respective local pose forecasts conditioned on each mode. In doing so, our Trajectory2Pose model introduces a graph-based agent-wise interaction module for a reciprocal forecast of local motion-conditioned global trajectory and trajectory-conditioned local pose. Our model effectively handles the multi-modality of human motion and the complexity of long-term multi-agent interactions, improving performance in complex environments. Furthermore, we address the lack of long-term (6s+) multi-agent (5+) datasets by constructing a new dataset from real-world images and 2D annotations, enabling a comprehensive evaluation of our proposed model. State-of-the-art prediction performance on both complex and simpler datasets confirms the generalized effectiveness of our method. The code is available at https://github.com/Jaewoo97/T2P.

提出了一个基于相互作用感知、轨迹条件化的长期多智能体人体姿势预测模型，通过粗粒度到细粒度的预测方法，首先预测出多模态全局轨迹，然后根据每种模态对应的局部姿势进行条件化预测，有效处理人体运动的多模态性以及长期多智能体之间的复杂相互作用，提高在复杂环境中的性能，并通过构建新的真实世界图像和2D注释数据集来解决缺乏长期多智能体数据集的问题，从而对所提出的模型进行全面评估。

多智能体长期3D人体姿势预测的互动-aware轨迹条件化