安全シールド強化学習による高密度環境での高速ビジョンベース飛行
High-Speed Vision-Based Flight in Clutter with Safety-Shielded Reinforcement Learning
物理情報を活用した強化学習とリアルタイム安全フィルタを組み合わせ、7.5m/sの高速で障害物を回避しながらドローンを自律飛行させる手法を提案した。
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著者: Jiarui Zhang, Chengyong Lei, Chengjiang Dai, Kenghou Hoi, Lijie Wang, Zhichao Han, Fei Gao
分類: cs.RO
原文アブストラクト
Quadrotor unmanned aerial vehicles (UAVs) are increasingly deployed in complex missions that demand reliable autonomous navigation and robust obstacle avoidance. However, traditional modular pipelines often incur cumulative latency, whereas purely reinforcement learning (RL) approaches typically provide limited formal safety guarantees. To bridge this gap, we propose an end-to-end RL framework augmented with model-based safety mechanisms. We incorporate physical priors in both training and deployment. During training, we design a physics-informed reward structure that provides global navigational guidance. During deployment, we integrate a real-time safety filter that projects the policy outputs onto a provably safe set to enforce strict collision-avoidance constraints. This hybrid architecture reconciles high-speed flight with robust safety assurances. Benchmark evaluations demonstrate that our method outperforms both traditional planners and recent end-to-end obstacle avoidance approaches based on differentiable physics. Extensive experiments demonstrate strong generalization, enabling reliable high-speed navigation in dense clutter and challenging outdoor forest environments at velocities up to 7.5 m/s}.
