考虑自身运动的交互式轨迹预测方法,提升机器人避障安全性。
Chatting about Conditional Trajectory Prediction

- 跨时域联合建模自身意图与社交互动信息
- 在多个基准上达到当前最优性能,显著优于现有方法
- 适合需要实时路径规划与交互决策的机器人系统
人类行为具有相互依赖性,要求人机交互系统通过建模复杂的社交互动来预测周围智能体的轨迹,避免碰撞并实现安全路径规划。尽管已有多种轨迹预测方法,但多数未考虑自车(ego agent)自身的运动状态,仅基于静态信息建模交互。受人类心智理论启发,本文提出一种跨时域意图-交互方法(Cross time domain intention-interactive, CiT),对不同时段的行为意图进行联合分析,实现不同时间域间的信息互补与融合。自身时域的意图可被另一时域的社会交互信息修正,从而获得更精确的意图表征。此外,CiT设计为可与机器人运动规划与控制模块紧密集成,能够基于自车潜在运动生成所有周围智能体的多条可选轨迹预测结果。大量实验表明,所提CiT显著优于现有方法,在多个基准上达到最先进水平。
原文摘要 · Abstract (English)
Human behavior has the nature of mutual dependencies, which requires human-robot interactive systems to predict surrounding agents trajectories by modeling complex social interactions, avoiding collisions and executing safe path planning. While there exist many trajectory prediction methods, most of them do not incorporate the own motion of the ego agent and only model interactions based on static information. We are inspired by the humans theory of mind during trajectory selection and propose a Cross time domain intention-interactive method for conditional Trajectory prediction(CiT). Our proposed CiT conducts joint analysis of behavior intentions over time, and achieves information complementarity and integration across different time domains. The intention in its own time domain can be corrected by the social interaction information from the other time domain to obtain a more precise intention representation. In addition, CiT is designed to closely integrate with robotic motion planning and control modules, capable of generating a set of optional trajectory prediction results for all surrounding agents based on potential motions of the ego agent. Extensive experiments demonstrate that the proposed CiT significantly outperforms the existing methods, achieving state-of-the-art performance in the benchmarks.
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