Zoomorphic Gestures for Communicating Cobot States
Vanessa Sauer, Axel Sauer, Alexander Mertens

TL;DR
This study explores zoomorphic dog-like gestures as an effective, intuitive, and user-preferred method for communicating cobot states, especially in noisy or visibility-constrained industrial environments.
Contribution
It introduces zoomorphic gestures based on dog body language as an alternative communication method for appearance-constrained cobots, supported by user studies comparing modalities.
Findings
Zoomorphic gestures have the highest intuitive understanding.
User experience is rated highest for gesture-based modalities.
Participants prefer zoomorphic gestures over other communication methods.
Abstract
Communicating the robot state is vital to creating an efficient and trustworthy collaboration between humans and collaborative robots (cobots). Standard approaches for Robot-to-human communication face difficulties in industry settings, e.g., because of high noise levels or certain visibility requirements. Therefore, this paper presents zoomorphic gestures based on dog body language as a possible alternative for communicating the state of appearance-constrained cobots. For this purpose, we conduct a visual communication benchmark comparing zoomorphic gestures, abstract gestures, and light displays. We investigate the modalities regarding intuitive understanding, user experience, and user preference. In a first user study (n = 93), we evaluate our proposed design guidelines for all visual modalities. A second user study (n = 214) constituting the benchmark indicates that intuitive…
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