青岛科技大学信息科学技术学院,山东青岛 266061
[ "孔 玮 女,1986年生,山东济南人.青岛科技大学信息科学技术学院博士研究生.主要研究方向为计算机视觉、轨迹预测." ]
[ "刘 云 男,1962年生,山西太原人.青岛科技大学信息科学技术学院教授、博士生导师.主要研究方向为计算机视觉、轨迹预测等." ]
[ "李 辉 男,1984年生,河南平顶山人.青岛科技大学信息科学技术学院副教授、硕士生导师.主要研究方向为计算机视觉、多目标跟踪与轨迹预测等." ]
[ "崔雪红 女,1978年生,山东菏泽人.青岛科技大学信息科学技术学院高级实验师.主要研究方向为计算机视觉、多目标检测与跟踪." ]
[ "杨浩冉 女,1997年生,河北邯郸人.青岛科技大学信息科学技术学院硕士研究生.主要研究方向为3D点云目标跟踪." ]
收稿:2021-12-03,
修回:2022-02-07,
纸质出版:2022-08-25
移动端阅览
孔玮,刘云,李辉等.基于全局自适应有向图的行人轨迹预测[J].电子学报,2022,50(08):1905-1916.
KONG Wei,LIU Yun,LI Hui,et al.Pedestrian Trajectory Prediction Based on Global Adaptive Directed Graph[J].ACTA ELECTRONICA SINICA,2022,50(08):1905-1916.
孔玮,刘云,李辉等.基于全局自适应有向图的行人轨迹预测[J].电子学报,2022,50(08):1905-1916. DOI: 10.12263/DZXB.20211613.
KONG Wei,LIU Yun,LI Hui,et al.Pedestrian Trajectory Prediction Based on Global Adaptive Directed Graph[J].ACTA ELECTRONICA SINICA,2022,50(08):1905-1916. DOI: 10.12263/DZXB.20211613.
由于行人交互的复杂性和周围环境的多变性,行人轨迹预测仍是一项具有挑战性的任务.然而,基于图结构的方法建模行人之间的交互时,存在着网络感受野小、成对行人间的相互交互对称、固定的图结构不能适应场景变化的问题,导致预测轨迹与真实轨迹偏差较大.为了解决这些问题,本文提出一种基于全局自适应有向图的行人轨迹预测方法(pedestrian trajectory prediction method based on Global Adaptive Directed Graph,GADG).设计全局特征更新(Global Feature Updating,GFU)和全局特征选择(Global Feature Selection,GFS)分别提升空间域和时间域的网络感受范围,以获取全局交互特征.构建有向特征图,定义行人间的不对称交互,提高网络建模的方向性.建立自适应图模型,灵活调整行人间的交互关系,减少冗余连接,增强图模型的自适应能力.在ETH和UCY数据集上的实验结果表明,与最优值相比,平均位移误差降低14%,最终位移误差降低3%.
Due to the complexity of pedestrian interaction and the variability of the surrounding environment
pedestrian trajectory prediction is still a challenging task. However
when modeling pedestrian interaction based on graph structure
there are some problems
such as small sensing field of the network
symmetrical interaction between pedestrians
and fixed graph structure that can not adapt to scene changes
which lead to a large deviation of the predicted trajectory from the real trajectory. To solve these problems
a pedestrian trajectory prediction method based on global adaptive directed graph is proposed. Global feature updating(GFU) and global feature selection(GFS) are designed to improve the perception range in spatial and temporal domain respectively and get global interaction features. A directed feature graph is constructed to define the asymmetric interaction between pedestrians and improve the directionality of network modeling. An adaptive graph model is established to flexibly adjust the relationship between pedestrians
reduce redundant connections and enhance the adaptive ability of the graph. The experimental results on ETH and UCY datasets show that comparing with the optimal value
the average displacement error is reduced by 14% and the final displacement error is reduced by 3%.
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