针对自动驾驶轨迹预测的跨域适应问题,提出上下文感知迁移方法
COTTA: Context-Aware Transfer Adaptation for Trajectory Prediction in Autonomous Driving

- 冻结编码器,仅微调解码器实现高效迁移
- 相比从零训练,误差降低超66%
- 为不同地区部署模型提供实证策略
准确预测周边交通参与者轨迹是保障自动驾驶安全的基础。然而,主流数据集如Waymo Open Motion Dataset和Argoverse多基于西方道路环境采集,难以反映韩国等地区的独特交通模式、基础设施与驾驶行为。当在非训练区域部署时,先进模型性能显著下降。本文研究了基于美国数据训练的Query-Centric Trajectory Prediction(QCNet)模型在韩国道路环境中的迁移能力。利用韩国自动驾驶数据集,对比四种训练策略:零样本迁移、从零训练、全量微调与编码器冻结。实验表明,利用预训练知识可显著提升预测性能;其中,仅微调解码器而冻结编码器,在准确率与训练效率间取得最佳平衡,预测误差较从零训练降低超过66%。本研究为在新地理场景部署轨迹预测模型提供了实用的迁移学习策略。
原文摘要 · Abstract (English)
Developing robust models to accurately predict the trajectories of surrounding agents is fundamental to autonomous driving safety. However, most public datasets, such as the Waymo Open Motion Dataset and Argoverse, are collected in Western road environments and do not reflect the unique traffic patterns, infrastructure, and driving behaviors of other regions, including South Korea. This domain discrepancy leads to performance degradation when state-of-the-art models trained on Western data are deployed in different geographic contexts. In this work, we investigate the adaptability of Query-Centric Trajectory Prediction (QCNet) when transferred from U.S.-based data to Korean road environments. Using a Korean autonomous driving dataset, we compare four training strategies: zero-shot transfer, training from scratch, full fine-tuning, and encoder freezing. Experimental results demonstrate that leveraging pretrained knowledge significantly improves prediction performance. Specifically, selectively fine-tuning the decoder while freezing the encoder yields the best trade-off between accuracy and training efficiency, reducing prediction error by over 66% compared to training from scratch. This study provides practical insights into effective transfer learning strategies for deploying trajectory prediction models in new geographic domains.
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