見えなくなった後も空間を推論する:視野外時空間推論のためのVLMベンチマーク
Long Time No See: Benchmarking VLMs for Out-of-Sight Spatiotemporal Reasoning in Egocentric Videos
動画内で視界から消えた物体の位置や状態を推論する能力を評価する初のVQAベンチマークBeyond3Dを構築し、9種類のVLMを評価した。
詳しい要約
1. どんなもの?
2. 先行研究と比べてどこがすごい?
3. 技術・手法の肝は?
4. どうやって有効だと検証した?
5. 議論はある?
6. 次に読むべき論文は?
※ AIが要旨から生成した要約です。正確性は原文をご確認ください。
著者: Fangzhou Ma, Ivo Alexander Ban, Eren Homburg, Gabriele Goletto, Rémi Pautrat, Mahdi Rad, Chiara Plizzari, Marc Pollefeys
分類: cs.CV
原文アブストラクト
Real-world AI systems must reason about objects that are no longer visible: an AR assistant guiding a user back to an object used earlier, a household robot retrieving an item someone put away. This requires not just recalling where an object was last seen, but updating its state when it is moved and retaining that update once it leaves view. We refer to this as out-of-sight spatiotemporal reasoning. We introduce Beyond3D, the first VQA benchmark to isolate this ability in dynamic egocentric video: every query targets an object that has been relocated and has since left the field of view. We create our questions from HD-EPIC annotations, building a visibility track for each dynamic object from its 3D position, the camera pose, and the scene geometry to understand at each moment whether it is visible, occluded, or out of view. Beyond3D comprises 9,000 questions in eight types over 135 videos from nine participants, organized as one reasoning chain: visual grounding (is the target observable now), temporal grounding (when it was last visible and last placed), scene localization (which fixture anchors that location), and 3D spatial perception (where it lies relative to the current viewpoint or another object in the scene). We benchmark nine general-purpose and spatially specialized VLMs. The best model reaches 42.2% against 29.7% chance and text-only baselines reaching 31.9%, with the largest failures in recovering when an object was last visible, showing that tracking object movement out of sight remains far from solved for current VLMs.
関連論文
- FreshLatent: 資源制約下の身体性VLM知覚のためのチャネル適応型潜在アダプテーションVLM
- VANTAGE-Bench:視覚言語モデルにおけるインフラAIギャップの評価VLM
- TimeSpot:実世界環境における視覚言語モデルの地理的・時間的理解を評価するベンチマークVLM
- VLURes: 低資源言語におけるVLMの視覚・言語理解ベンチマークVLM
- InfraGPT Smart Infrastructure: VLMを用いた都市インフラ欠陥の検出と管理のためのエンドツーエンドフレームワークVLM
- 偽物か本物か、ロボットは見分けられるか?単視点ロボットシーン理解におけるドメインシフトに対するVLMの頑健性評価VLM