人間からロボットへの受け渡しにおける動作の丁寧さの表出と推論
Expressing and Inferring Action Carefulness in Human-to-Robot Handovers
人間がカップをロボットに手渡す際の動作の丁寧さをオンラインで分類し、カップの中身に応じてロボットの動きを変える「表出的」制御を提案・検証した研究。
著者: Linda Lastrico, Nuno Ferreira Duarte, Alessandro Carfì, Francesco Rea, Alessandra Sciutti, Fulvio Mastrogiovanni, José Santos-Victor
分類: cs.RO
原文アブストラクト
Implicit communication plays such a crucial role during social exchanges that it must be considered for a good experience in human-robot interaction. This work addresses implicit communication associated with the detection of physical properties, transport, and manipulation of objects. We propose an ecological approach to infer object characteristics from subtle modulations of the natural kinematics occurring during human object manipulation. Similarly, we take inspiration from human strategies to shape robot movements to be communicative of the object properties while pursuing the action goals. In a realistic HRI scenario, participants handed over cups - filled with water or empty - to a robotic manipulator that sorted them. We implemented an online classifier to differentiate careful/not careful human movements, associated with the cups' content. We compared our proposed "expressive" controller, which modulates the movements according to the cup filling, against a neutral motion controller. Results show that human kinematics is adjusted during the task, as a function of the cup content, even in reach-to-grasp motion. Moreover, the carefulness during the handover of full cups can be reliably inferred online, well before action completion. Finally, although questionnaires did not reveal explicit preferences from participants, the expressive robot condition improved task efficiency.
