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Stephen J. Guy, PhD
Associate Professor
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Research Interests: Robotics, Animation, Artificial Intelligence (AI), Crowd Simulation, Path Planning
- NEWS: Our work on Robot Learning from Egocentric Videos will be presented at ICRA 2025.
Research Vision
Our lab develops artificial intelligence and computer vision technologies to advance autonomous robotics and the computational analysis of human movement and behavior. We empower AI systems to understand, anticipate, and interact with real-world human movements and behaviors, and apply these capabilities to enhance human-robot interaction, improve predictive behavior analysis, and create more realistic virtual character animations. Driven by applications in medicine, social robotics, and human-centric AI, our research aims to create innovative, intelligent systems that integrate seamlessly into everyday human environments.
Selected Publications
- Simultaneous Localization and Affordance Prediction for Tasks in Egocentric Video, Z. Chavis, H. S. Park, S. J. Guy, IEEE ICRA, 2025. [PDF]
- Characterization of Bilateral Reaching Development Using Augmented Reality Games, S. Ziccardi, S. Timanus, G. Ashrafzadehkian, S. J. Guy, R. L. Hawe, Human Movement Science, 2024. [Online]
- NH-TTC: A gradient-based framework for generalized anticipatory collision avoidance, B. Davis, I. Karamouzas, S. J. Guy, RSS, 2020. [WEB]
- Crowd Space: A Predictive Crowd Analysis Technique, I. Karamouzas, N. Sohre, R. Hu, S. J. Guy, ACM TOG (Siggraph Asia) 2018. [PDF]
- Implicit Crowds: Optimization Integrator for Robust Crowd Simulation, I. Karamouzas, N. Sohre, R. Narain, S. J. Guy, ACM TOG (Siggraph) 2017. [WEB]
- Dynamic Properties of Successful Smiles, N. Helwig, N. Sohre, M. Ruprecht, S. J. Guy, S. Lyford-Pike, PLoS ONE, 2016. [WEB]
- Universal Power Law Governing Pedestrian Interaction, I. Karamouzas, B. Skinner, S. J. Guy, Physical Review Letters (PRL) 2014. [WEB]
Full Publication List → Google Scholar
Teaching
- Foundations of Computer Graphics (CSCI 5607), Fall 2025
- Animation and Planning in Games (CSCI 5611), Fall 2023
- Applied Machine Learning (CSCI 4980), Fall 2023
- Animation and Planning in Games (CSCI 5611), Fall 2022
- Animation and Planning in Games (CSCI 5611), Fall 2021
- Foundations of Computer Graphics (CSCI 5607), Spring 2021
Bio
Stephen J. Guy is an associate professor in the Department of Computer Science and Engineering at the University of Minnesota. His research focuses on the development of artificial intelligence and computer vision for use in autonomous robotics and analysis of human movement and behavior. His work has had broad impact on social robotics, games/VR, and medicine. He is the recipient of several awards including the Charles E. Bowers Faculty Teaching Award and multiple best paper awards for his research work in simulation and planning. Stephen's academic work has appeared in top venues for robotics, AI and computer graphics including SIGGRAPH, IJRR, IEEE Trans. on Robotics, AAMAS, AAAI, and IJCAI. His work in human motion analysis has also been widely covered in popular media including newspapers, magazines, documentaries, and late-night TV.
Prospective Students
- (Fall 2025) I currently have no funded positions open
If you are interested in working with me as a graduate student, e-mail is the best way to contact me (and most other professors); David Evans has some great advice on how to do this productively -- I strongly recommend reading this before contacting any professor about graduate school.
Any students considering applying for a Ph.D. should read the amazing and frank advice from Dr. Mor Harchol-Balter.