正規化フローを用いた自動運転のモデル予測軌道計画のためのサンプリング
Sampling for Model Predictive Trajectory Planning in Autonomous Driving using Normalizing Flows
自動運転の軌道計画において、正規化フローを用いてサンプリング分布を生成し、モデル予測パス積分制御の効率を向上させる手法を提案し、シミュレーションで評価した。
著者: Georg Rabenstein, Lars Ullrich, Knut Graichen
分類: cs.RO, cs.LG
原文アブストラクト
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.
