OmniVLA：ロボットナビゲーションのためのオムニモーダル視覚言語行動モデル
OmniVLA: An Omni-Modal Vision-Language-Action Model for Robot Navigation
2D姿勢・自己中心画像・自然言語などの複数のゴール指定をランダムに融合して学習し、未知環境への汎化や新しい言語指示への追従を可能にしたナビゲーション用VLAモデルを提案。
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著者: Noriaki Hirose, Catherine Glossop, Dhruv Shah, Sergey Levine
分類: cs.RO, cs.LG
原文アブストラクト
Humans can flexibly interpret and compose different goal specifications, such as language instructions, spatial coordinates, or visual references, when navigating to a destination. In contrast, most existing robotic navigation policies are trained on a single modality, limiting their adaptability to real-world scenarios where different forms of goal specification are natural and complementary. In this work, we present a training framework for robotic foundation models that enables omni-modal goal conditioning for vision-based navigation. Our approach leverages a high-capacity vision-language-action (VLA) backbone and trains with three primary goal modalities: 2D poses, egocentric images, and natural language, as well as their combinations, through a randomized modality fusion strategy. This design not only expands the pool of usable datasets but also encourages the policy to develop richer geometric, semantic, and visual representations. The resulting model, OmniVLA, achieves strong generalization to unseen environments, robustness to scarce modalities, and the ability to follow novel natural language instructions. We demonstrate that OmniVLA outperforms specialist baselines across modalities and offers a flexible foundation for fine-tuning to new modalities and tasks. We believe OmniVLA provides a step toward broadly generalizable and flexible navigation policies, and a scalable path for building omni-modal robotic foundation models. We present videos showcasing OmniVLA performance and will release its checkpoints and training code on our project page.
