共に見る：マルチモーダル大規模言語モデルによる多ロボット協調的自我中心空間推論
Seeing Together: Multi-Robot Cooperative Egocentric Spatial Reasoning with Multimodal Large Language Models
複数の移動ロボットの同期した一人称視点ビデオを統合し、空間・時間・可視性・協調に関する質問に答える多ロボット協調動的空間推論の課題を研究。新ベンチマークCoopSRとデータセットEgoTeamを構築し、提案手法SP-CoRが既存MLLMを上回る性能を示した。
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著者: Kunyu Peng, Zhikun Zhou, Kailun Yang, Di Wen, Ruiping Liu, Yufan Chen, Junwei Zheng, Hao Shi, Yi Zhou, M. Saquib Sarfraz, Danda Pani Paudel, Luc Van Gool
分類: cs.CV
原文アブストラクト
Multimodal Large Language Models (MLLMs) have made substantial progress in egocentric video understanding, but their ability to reason cooperatively from multiple embodied viewpoints remains largely unexplored. We study this problem through multi-robot cooperative dynamic spatial reasoning, where a model must answer spatial, temporal, visibility, and coordination questions by integrating synchronized egocentric videos from a team of moving robots. To support this setting, we introduce CoopSR, the first benchmark for this task, together with EgoTeam, a multi-robot egocentric QA dataset. EgoTeam contains 114,227 QA pairs spanning 19 question types, four difficulty tiers, and three team sizes in Habitat and iGibson, along with a real-world test set of around 2,326 QAs collected using two quadruped robots. We further propose SP-CoR (Spectral and Physics-Informed Cooperative Reasoner), an MLLM framework for fine-grained cooperative spatial reasoning. SP-CoR combines dynamics-aware multi-robot frame sampling, spectral- and physics-guided view fusion, and physics-aligned prompt distillation, enabling the model to benefit from privileged robot-pose supervision during training while requiring only egocentric videos at test time. Across 22 MLLM baselines, SP-CoR consistently improves cooperative reasoning, outperforming the strongest fine-tuned baseline by +3.87% on Habitat and +7.12% on iGibson. It also shows stronger generalization to unseen team sizes and real-world robot tests. Code can be found at https://github.com/KPeng9510/seeing-together.git.
