Pedestrian trajectory prediction method based on the Social-LSTM model for vehicle collision  

作　　者：Yong Han Xujie Lin Di Pan Yanting Li Liang Su Robert Thomson Koji Mizuno 

机构地区：[1]School of Mechanical and Automotive Engineering,Xiamen University of Technology,Xiamen 361024,China [2]Fujian Province Key Laboratory of Advanced Design and Manufacturing of Buses,Xiamen 361024,China [3]Engineering Research Institute of Xiamen Kinglong United Automobile Industry Co.,Ltd.,Xiamen 361000,China [4]Chalmers University of Technology,Gothenburg 41296,Sweden [5]Department of Mechanical Systems Engineering,Nagoya University,Nagoya 464-8603,Japan

出　　处：《Transportation Safety and Environment》2024年第3期140-151,共12页交通安全与环境（英文）

基　　金：support of the Natural Science Foundation of China(Grant No.51775466);the Xiamen City Natural Science Foundation(No.3502Z20227223).

摘　　要：Techniques for predicting the trajectory of vulnerable road users are important to the development of perception systems for autonomous vehicles to avoid accidents.The most effective trajectory prediction methods,such as Social-LSTM,are often used to predict pedestrian trajectories in normal passage scenarios.However,they can produce unsatisfactory prediction results and data redundancy,as well as difficulties in predicting trajectories using pixel-based coordinate systems in collision avoidance systems.There is also a lack of validations using real vehicle-to-pedestrian collisions.To address these issues,some insightful approaches to improve the trajectory prediction scheme of Social-LSTM were proposed,such methods included transforming pedestrian trajectory coordinates and converting image coordinates to world coordinates.The YOLOv5 detection model was introduced to reduce target loss and improve prediction accuracy.The DeepSORT algorithm was employed to reduce the number of target transformations in the tracking model.Image Perspective Transformation(IPT)and Direct Linear Transformation(DLT)theories were combined to transform the coordinates to world coordinates,identifying the collision location where the accident could occur.The performance of the proposed method was validated by training tests using MS COCO(Microsoft Common Objects in Context)and ETH/UCY datasets.The results showed that the target detection accuracy was more than 90%and the prediction loss tends to decrease with increasing training steps,with the final loss value less than 1%.The reliability and effectiveness of the improved method were demonstrated by benchmarking system performance to two video recordings of real pedestrian accidents with different lighting conditions.

关 键 词：vehicle-to-pedestrian collisions pedestrian trajectory prediction YOLOvB DeepSORT Social-LSTM 

分 类 号：U463.6[机械工程—车辆工程]