SINGER: ドローン向けオンボード汎用視覚言語ナビゲーションポリシー
SINGER: An Onboard Generalist Vision-Language Navigation Policy for Drones
ガウススプラッティングによるフォトリアルなシミュレータとRRTベースの専門家で生成したデータを用い、オンボードセンシングのみで言語指示に従い自律飛行する軽量な視覚運動ポリシーを学習した。未見環境や未見物体へのゼロショットsim2real転移でベースラインを上回る。
詳しい要約
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2. 先行研究と比べてどこがすごい?
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著者: Maximilian Adang, JunEn Low, Ola Shorinwa, Mac Schwager
分類: cs.RO
原文アブストラクト
Large vision-language models have driven remarkable progress in open-vocabulary robot policies, e.g., generalist robot manipulation policies, that enable robots to complete complex tasks specified in natural language. Despite these successes, open-vocabulary autonomous drone navigation remains an unsolved challenge due to the scarcity of large-scale demonstrations, real-time control demands of drones for stabilization, and lack of reliable external pose estimation modules. In this work, we present SINGER for language-guided autonomous drone navigation in the open world using only onboard sensing and compute. To train robust, open-vocabulary navigation policies, SINGER leverages three central components: (i) a photorealistic language-embedded flight simulator with minimal sim-to-real gap using Gaussian Splatting for efficient data generation, (ii) an RRT-inspired multi-trajectory generation expert for collision-free navigation demonstrations, and these are used to train (iii) a lightweight end-to-end visuomotor policy for real-time closed-loop control. Through extensive hardware flight experiments, we demonstrate superior zero-shot sim-to-real transfer of our policy to unseen environments and unseen language-conditioned goal objects. When trained on ~700k-1M observation action pairs of language conditioned visuomotor data and deployed on hardware, SINGER outperforms a velocity-controlled semantic guidance baseline by reaching the query 23.33% more on average, and maintains the query in the field of view 16.67% more on average, with 10% fewer collisions.
