Alongside optimization-based planners, sampling-based approaches are often used in trajectory planning for autonomous driving due to their simplicity. Model predictive path integral control is a framework that builds upon optimization principles while incorporating stochastic sampling of input trajectories. This paper investigates several sampling approaches for trajectory generation. In this context, normalizing flows originating from the field of variational inference are considered for the generation of sampling distributions, as they model transformations of simple to more complex distributions. Accordingly, learning-based normalizing flow models are trained for a more efficient exploration of the input domain for the task at hand. The developed algorithm and the proposed sampling distributions are evaluated in two simulation scenarios.
Sampling for Model Predictive Trajectory Planning in Autonomous Driving using Normalizing Flows
2024 IEEE Intelligent Vehicles Symposium (IV) ; 2091-2096
02.06.2024
1240817 byte
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
Trajectory generation for autonomous highway driving using model predictive control
BASE | 2017
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