PRESTO: キー配置環境表現に基づく拡散モデルを用いた高速動作計画
PRESTO: Fast Motion Planning Using Diffusion Models Based on Key-Configuration Environment Representation
作業空間を少数のキー配置で表現し、それを条件に拡散モデルで初期軌道を生成して軌道最適化で衝突を修正する、学習ベースの動作計画手法を提案した論文。
著者: Mingyo Seo, Yoonyoung Cho, Yoonchang Sung, Peter Stone, Yuke Zhu, Beomjoon Kim
分類: cs.RO
原文アブストラクト
We introduce a learning-guided motion planning framework that generates seed trajectories using a diffusion model for trajectory optimization. Given a workspace, our method approximates the configuration space (C-space) obstacles through an environment representation consisting of a sparse set of task-related key configurations, which is then used as a conditioning input to the diffusion model. The diffusion model integrates regularization terms that encourage smooth, collision-free trajectories during training, and trajectory optimization refines the generated seed trajectories to correct any colliding segments. Our experimental results demonstrate that high-quality trajectory priors, learned through our C-space-grounded diffusion model, enable the efficient generation of collision-free trajectories in narrow-passage environments, outperforming previous learning- and planning-based baselines. Videos and additional materials can be found on the project page: https://kiwi-sherbet.github.io/PRESTO.
