車線注意機構を用いた確率的マルチモーダル軌道予測
Probabilistic Multi-modal Trajectory Prediction with Lane Attention for Autonomous Vehicles
車線ごとの特徴を捉えるインスタンス認識型の車線表現とゴール指向の車線注意モジュールを提案し、不確実性を考慮した多様な将来軌道を確率的に予測する手法を開発した。
著者: Chenxu Luo, Lin Sun, Dariush Dabiri, Alan Yuille
分類: cs.RO, cs.CV
原文アブストラクト
Trajectory prediction is crucial for autonomous vehicles. The planning system not only needs to know the current state of the surrounding objects but also their possible states in the future. As for vehicles, their trajectories are significantly influenced by the lane geometry and how to effectively use the lane information is of active interest. Most of the existing works use rasterized maps to explore road information, which does not distinguish different lanes. In this paper, we propose a novel instance-aware representation for lane representation. By integrating the lane features and trajectory features, a goal-oriented lane attention module is proposed to predict the future locations of the vehicle. We show that the proposed lane representation together with the lane attention module can be integrated into the widely used encoder-decoder framework to generate diverse predictions. Most importantly, each generated trajectory is associated with a probability to handle the uncertainty. Our method does not suffer from collapsing to one behavior modal and can cover diverse possibilities. Extensive experiments and ablation studies on the benchmark datasets corroborate the effectiveness of our proposed method. Notably, our proposed method ranks third place in the Argoverse motion forecasting competition at NeurIPS 2019.
