雾霾下行人轨迹预测新模型,融合物理先验与图状交互建模。
Hazy Pedestrian Trajectory Prediction via Physical Priors and Graph-Mamba
- 用可微分大气散射模型分离雾霾浓度与光照衰减,学习去雾特征。
- 自适应Mamba提升78%推理速度,同时保持长程依赖建模能力。
- 图注意力网络捕捉行人与群体多粒度互动,适合复杂场景智能系统。
为解决雾霾天气下行人轨迹预测中物理信息退化与交互建模无效的问题,本文提出一种结合大气散射物理先验与行人关系拓扑建模的深度学习模型。首先,构建可微分大气散射模型,通过网络估计物理参数,解耦雾霾浓度与光照退化,实现去雾特征表示学习。其次,设计自适应扫描状态空间模型用于特征提取,其变体相比原生Mamba推理速度提升78%,同时保留长程依赖建模能力。最后,开发异构图注意力网络,利用图矩阵建模行人与群体间的多粒度交互,并结合时空融合模块捕捉行人运动的协同演化模式。此外,基于ETH/UCY构建新数据集评估方法有效性。实验表明,在能见度低于30米的浓雾场景下,该方法相较最先进模型,minADE与minFDE指标分别降低37.2%和41.5%,为恶劣环境下智能交通系统的可靠感知提供了新范式。
原文摘要 · Abstract (English)
To address the issues of physical information degradation and ineffective pedestrian interaction modeling in pedestrian trajectory prediction under hazy weather conditions, we propose a deep learning model that combines physical priors of atmospheric scattering with topological modeling of pedestrian relationships. Specifically, we first construct a differentiable atmospheric scattering model that decouples haze concentration from light degradation through a network with physical parameter estimation, enabling the learning of haze-mitigated feature representations. Second, we design an adaptive scanning state space model for feature extraction. Our adaptive Mamba variant achieves a 78% inference speed increase over native Mamba while preserving long-range dependency modeling. Finally, to efficiently model pedestrian relationships, we develop a heterogeneous graph attention network, using graph matrices to model multi-granularity interactions between pedestrians and groups, combined with a spatio-temporal fusion module to capture the collaborative evolution patterns of pedestrian movements. Furthermore, we constructed a new pedestrian trajectory prediction dataset based on ETH/UCY to evaluate the effectiveness of the proposed method. Experiments show that our method reduces the minADE / minFDE metrics by 37.2% and 41.5%, respectively, compared to the SOTA models in dense haze scenarios (visibility < 30m), providing a new modeling paradigm for reliable perception in intelligent transportation systems in adverse environments.
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