GASP: GPU加速によるリアルタイム衝突回避運動生成のための安全プランナー
GASP: GPU-Accelerated Safe Planner for Real-Time Collision-Aware Motion Generation with Latent Trajectory Sampling
GPU上で並列処理する衝突回避型の関節空間運動生成プランナーを提案。Bスプラインとニューラルネットで軌道候補を生成し、CVAEで複数候補をサンプリングしてGPUで並列検証することで、ミリ秒単位の高速推論を実現した。
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著者: Colin Merk, Stefanos Charalambous, Peter Dürr, Farshad Khadivar
分類: cs.RO
原文アブストラクト
We present GASP, a GPU-Accelerated Safe Planner for real-time, collision-aware joint-space motion generation in known environments. GASP combines a clamped B-spline trajectory parameterization with a convolutional residual neural network that predicts the free interior control points, while analytically inserted boundary control points enforce initial and final derivative constraints for collision-aware planning under non-stationary conditions. A conditional variational autoencoder samples multiple trajectory candidates, which are decoded and validated in parallel on the GPU, yielding a batched planner for collision-aware coupled joint-space motion with near-millisecond inference. We validate GASP as an online motion-generation module, where it achieves analytical-level success rates with high collision-aware feasibility and substantially reduces inference time relative to GPU-based trajectory optimization. We further deploy GASP as a reinforcement-learning reset planner in competitive robotic table tennis, matching the baseline return rate while roughly halving training-time collisions.