ジェスチャー・視覚・テキストを統合した3D指示対象理解モデルGVT3D
GVT3D: Gesture-Vision-Text Token Enrichment for 3D Embodied Reference Understanding
指差しジェスチャーと言語指示から3D点群中の対象物位置を特定するタスクにおいて、3つのモダリティを共有埋め込み空間で統合し、注視領域に絞った処理で高速化も実現したモデルを提案した。
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著者: Vimarsh Shah, Dulanga Weerakoon, Ajinkya Deshpande, Saksham Agarwal, Nilesh Bhatia, Neel Kiran Naik, Parth Shah, Sravan Danda, Sanjay E. Sarma, Archan Misra, Vigneshwaran Subbaraju, Sougata Sen
分類: cs.CV
原文アブストラクト
Natural human-robot interaction requires robots to interpret language and gestures within a 3D environment to support tasks such as pick-and-place and object retrieval. 3D Embodied Reference Understanding (3D-ERU) supports this by identifying the 3D location of a target object from a scene (point-cloud) containing a human pointing gesture and an accompanying language description. However, current 3D-ERU models lack alignment of cross-modal representations and incur high processing costs that increase with the point-cloud's size. To address this, we propose GVT3D, which employs an Embodied Fusion module that jointly models language, gesture, and vision inputs within a shared embedding space, promoting cross-modal alignment. We additionally introduce a foveation approach that selectively processes the point cloud within a coarse region around the estimated pointing direction to reduce computations. GVT3D achieves ~8% higher accuracy and foveation enables 2.95x faster execution while maintaining comparable accuracy, relative to prior 3D-ERU models.