Pedestrian Trajectory Prediction in Heterogeneous Traffic using Facial Keypoints-based Convolutional Encoder-decoder Network

• Published in: ACM transactions on Internet technology Vol. 22; no. 4; pp. 1 - 14
• Main Authors: Xiao, Song, Chen, Kai, Ren, Xiaoxiang, Yuan, Haitao
• Format: Journal Article
• Language: English
• Published: New York, NY ACM 14.11.2022
• Subjects: Information systems; Information systems applications; convolutional long-short-term memory; attention; Social-interaction; pedestrian intention; encoder-decoder
• ISSN: 1533-5399; 1557-6051
• DOI: 10.1145/3410444

Future pedestrian trajectory prediction offers great prospects for many practical applications such as unmanned vehicles, building evacuation design and robotic path planning. Most existing methods focus on social interaction among pedestrians but ignore the fact that heterogeneous traffic objects (cars, dogs, bicycles, motorcycles, etc.) have significant influence on the future trajectory of a subject pedestrian. Also, the walking direction intention of a pedestrian may be referred by his/her facial keypoints. Considering this, this work proposes to predict a pedestrian's future trajectory by jointly using neighboring heterogeneous traffic information and his/her facial keypoints. To fulfill this, an end-to-end facial keypoints-based convolutional encoder-decoder network (FK-CEN) is designed, in which the heterogeneous traffic and facial keypoints are input. After training, FK-CEN is evaluated on 5 crowded video sequences collected from the public datasets MOT-16 and MOT-17. Experimental results demonstrate that it outperforms state-of-the-art approaches, in terms of prediction errors.