"I'm Not Mad, Just Focused'': Understanding Human Emotions in Human-Robot Collaboration

Fuente: arXiv
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Main Authors: Hong, Seung Chan, Kulić, Dana, Tian, Leimin
Format: Preprint
Published: 2026
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author Hong, Seung Chan
Kulić, Dana
Tian, Leimin
author_facet Hong, Seung Chan
Kulić, Dana
Tian, Leimin
contents Human-robot collaboration (HRC) can benefit from robots' abilities to interpret human emotional states. However, current emotion recognition (ER) models in HRC often fall short, particularly due to their reliance on acted datasets and single-modality inputs like facial expressions. We propose a novel vision language model (VLM)-based ER system that leverages contextual understanding to improve emotion interpretation in HRC. We first evaluate the VLM-ER system by assessing its semantic and sentiment similarity with human annotations on an existing HRC dataset. Then, in a user study with a service robot in a collaborative delivery task, we evaluate the effects of modulating the robot's behaviour based on the user's emotional state inferred by the VLM-ER system. The results show that the proposed VLM-ER system achieves higher semantic similarity and positive sentiment alignment with human annotations compared to a baseline convolutional neural network-based system. Further, participants in the user study preferred emotion-adaptive robot behaviour facilitated by the VLM-ER system.
format Preprint
id arxiv_https___arxiv_org_abs_2605_16816
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle "I'm Not Mad, Just Focused'': Understanding Human Emotions in Human-Robot Collaboration
Hong, Seung Chan
Kulić, Dana
Tian, Leimin
Robotics
Human-robot collaboration (HRC) can benefit from robots' abilities to interpret human emotional states. However, current emotion recognition (ER) models in HRC often fall short, particularly due to their reliance on acted datasets and single-modality inputs like facial expressions. We propose a novel vision language model (VLM)-based ER system that leverages contextual understanding to improve emotion interpretation in HRC. We first evaluate the VLM-ER system by assessing its semantic and sentiment similarity with human annotations on an existing HRC dataset. Then, in a user study with a service robot in a collaborative delivery task, we evaluate the effects of modulating the robot's behaviour based on the user's emotional state inferred by the VLM-ER system. The results show that the proposed VLM-ER system achieves higher semantic similarity and positive sentiment alignment with human annotations compared to a baseline convolutional neural network-based system. Further, participants in the user study preferred emotion-adaptive robot behaviour facilitated by the VLM-ER system.
title "I'm Not Mad, Just Focused'': Understanding Human Emotions in Human-Robot Collaboration
topic Robotics
url https://arxiv.org/abs/2605.16816