Autonomous vehicles navigate in dynamically changing environments under a wide variety of conditions, being continuously influenced by surrounding objects. Mod - elling interactions among agents is essential for accurately forecasting other agents' behaviour and achieving safe and comfortable motion planning. In this work, we propose SCOUT, a novel Attention-based Graph Neural Network that uses a flexible and generic representation of the scene as a graph for modelling interactions, and predicts socially - consistent trajec - tories of vehicles and Vulnerable Road Users (VRU s) under mixed traffic conditions. We explore three different attention mechanisms and test our scheme with both bird-eye - view and on-vehicle urban data, achieving superior performance than existing state-of - the-art approaches on InD and ApolloScape Trajectory benchmarks. Additionally, we evaluate our model's flexibility and transferability by testing it under completely new scenarios on RounD dataset. The importance and influence of each interaction in the final prediction is explored by means of Integrated Gradients technique and the visualization of the attention learned.
SCOUT: Socially-COnsistent and UndersTandable Graph Attention Network for Trajectory Prediction of Vehicles and VRUs
2021 IEEE Intelligent Vehicles Symposium (IV) ; 1501-1508
2021-07-11
14298322 byte
Conference paper
Electronic Resource
English
British Library Conference Proceedings | 2021
|Online Contents | 1997
British Library Online Contents | 1997
Mobile VRUs for small terminals
British Library Online Contents | 1997