Joohwan Kim ![](/sites/default/files/person/Joohwan.jpg) Joohwan Kim is a vision scientist in Nvidia's New Experience research group based in Santa Clara, California. Joohwan received his Ph.D. from Seoul National University in 2009, and was a postdoctoral fellow in University of California, Berkeley until 2015. Joohwan's current interests are in understanding and improving viewer experience of various types of displays, especially regarding esports. Research Area(s) [Applied Perception](/index.php/research-area/applied-perception) [Artificial Intelligence and Machine Learning ](/index.php/research-area/machine-learning-artificial-intelligence) [Computational Photography and Imaging](/index.php/research-area/computational-photography-imaging) [Computer Graphics](/index.php/research-area/computer-graphics) [Computer Vision](/index.php/research-area/computer-vision) [Esports](/index.php/research-area/esports) [VR, AR and Display Technology](/index.php/research-area/virtual-augmented-reality) Main Field of Interest [Human Computer Interaction](/index.php/research-area/human-computer-interaction) Google Scholar [https://scholar.google.com/citations?user=vnC7UVcAAAAJ&hl=en](https://scholar.google.com/citations?user=vnC7UVcAAAAJ&hl=en) ### Publications ### 2026 [Impact of Graphical Fidelity and Frame-Time Stutter in a First-Person Shooter Game](/index.php/publication/2026-05_impact-graphical-fidelity-and-frame-time-stutter-first-person-shooter-game) Samin Shahriar Tokey, [Ben Boudaoud](/index.php/person/ben-boudaoud), [Joohwan Kim](/index.php/person/joohwan-kim), [Josef Spjut](/index.php/person/josef-spjut), [Peter Xenopoulos](/index.php/person/peter-xenopoulos), Mark Claypool ACM SIGGRAPH Symposium on Interactive 3D Graphics and Games (I3D) ### 2025 [Lead Rush: A First-Person Shooter for User Studies and Understanding Effects of Frame Time Spikes](/index.php/publication/2025-09_lead-rush-first-person-shooter-user-studies-and-understanding-effects-frame) Samin Shahriar Tokey, [Ben Boudaoud](/index.php/person/ben-boudaoud), [Joohwan Kim](/index.php/person/joohwan-kim), [Josef Spjut](/index.php/person/josef-spjut), [Peter Xenopoulos](/index.php/person/peter-xenopoulos), Mark Claypool [2025 17th International Conference on Quality of Multimedia Experience (QoMEX)](https://ieeexplore.ieee.org/xpl/conhome/11219884/proceeding) [Timing Matters: The Impact of Event-Specific Frametime Spikes in First-Person Shooter Games](/index.php/publication/2025-09_timing-matters-impact-event-specific-frametime-spikes-first-person-shooter) Samin Shahriar Tokey, [Ben Boudaoud](/index.php/person/ben-boudaoud), [Joohwan Kim](/index.php/person/joohwan-kim), [Josef Spjut](/index.php/person/josef-spjut), Mark Claypool [2025 17th International Conference on Quality of Multimedia Experience (QoMEX)](https://ieeexplore.ieee.org/xpl/conhome/11219884/proceeding) [Toward Understanding Display Size for FPS Esports Aiming](/index.php/publication/2025-04_toward-understanding-display-size-fps-esports-aiming) Arjun Madhusudan, [Josef Spjut](/index.php/person/josef-spjut), Benjamin Watson, Seth Schneider, [Ben Boudaoud](/index.php/person/ben-boudaoud), [Joohwan Kim](/index.php/person/joohwan-kim) [Foundations of Digital Games](https://fdg2025.org/) [Modeling Visually-Guided Aim-and-Shoot behavior in First-Person Shoters](/index.php/publication/2025-04_modeling-visually-guided-aim-and-shoot-behavior-first-person-shoters) June-Seop Yoon, Hee-Seung Moon, [Ben Boudaoud](/index.php/person/ben-boudaoud), [Josef Spjut](/index.php/person/josef-spjut), [Iuri Frosio](/index.php/person/iuri-frosio), Byungjoo Lee, [Joohwan Kim](/index.php/person/joohwan-kim) [International Journal of Human-Computer Studies](https://doi.org/10.1016/j.ijhcs.2025.103503) [Pushing the Limits? Frame Rate Benefits to Players for up to 500 Hz in First Person Shooter Games](/index.php/publication/2025-03_pushing-limits-frame-rate-benefits-players-500-hz-first-person-shooter-games) Samin Shahriar Tokey, [Ben Boudaoud](/index.php/person/ben-boudaoud), [Joohwan Kim](/index.php/person/joohwan-kim), [Josef Spjut](/index.php/person/josef-spjut), Mark Claypool [Network and Operating System Support for Digital Audio and Video](https://www.nossdav.org/) ### 2024 [Learning to Move Like Professional Counter-Strike Players](/index.php/publication/2024-09_learning-move-professional-counter-strike-players) David Durst, F. Xie, V. Sarukkai, Brennan Shacklett, [Iuri Frosio](/index.php/person/iuri-frosio), [Chen Tessler](/index.php/person/chen-tessler), [Joohwan Kim](/index.php/person/joohwan-kim), C. Taylor, G. Bernstein, S. Choudhury, P. Hanrahan,, Kayvon Fatahalian [The 23rd ACM SIGGRAPH / Eurographics Symposium on Computer Animation (SCA 2024)](https://computeranimation.org/program.html) [Variable Frame Timing Affects Perception of Smoothness in First-Person Gaming](/index.php/publication/2024-08_variable-frame-timing-affects-perception-smoothness-first-person-gaming) Devi Klein, [Josef Spjut](/index.php/person/josef-spjut), [Ben Boudaoud](/index.php/person/ben-boudaoud), [Joohwan Kim](/index.php/person/joohwan-kim) [IEEE Conference on Games (CoG)](https://ieeexplore.ieee.org/xpl/conhome/10645493/proceeding) [On Smoothly Varying Frame Timing in First-Person Gaming](/index.php/publication/2024-07_smoothly-varying-frame-timing-first-person-gaming) UC Santa Barbara and NVIDIA, [Josef Spjut](/index.php/person/josef-spjut), [Ben Boudaoud](/index.php/person/ben-boudaoud), [Joohwan Kim](/index.php/person/joohwan-kim) [ACM SIGGRAPH Talks](https://dl.acm.org/doi/proceedings/10.1145/3641233) [Studying Esports Competition: Piloting Methodology for User Studies During Tournaments](/index.php/publication/2024-07_studying-esports-competition-piloting-methodology-user-studies-during) Arjun Madhusudan, [Josef Spjut](/index.php/person/josef-spjut), [Ben Boudaoud](/index.php/person/ben-boudaoud), [Joohwan Kim](/index.php/person/joohwan-kim), Benjamin Watson [ACM SIGGRAPH Talks](https://dl.acm.org/doi/proceedings/10.1145/3641233) [The Effects of Network Latency on the Peeker's Advantage in First-person Shooter Games](/index.php/publication/2024-05_effects-network-latency-peeker-s-advantage-first-person-shooter-games) Samin Shahriar Tokey, Zesheng Chen, Colin Mettler, Dexuan Tang, [Ben Boudaoud](/index.php/person/ben-boudaoud), [Joohwan Kim](/index.php/person/joohwan-kim), [Josef Spjut](/index.php/person/josef-spjut), Mark Claypool [Foundations of Digital Games](https://fdg2024.org/) [Is Less More? Rendering for Esports](/index.php/publication/2024-03_less-more-rendering-esports) Benjamin Watson, [Josef Spjut](/index.php/person/josef-spjut), [Joohwan Kim](/index.php/person/joohwan-kim), Byungjoo Lee, Mijin Yoo, Peter Shirley, Rulon Raymond [IEEE Computer Graphics and Applications](https://ieeexplore.ieee.org/xpl/tocresult.jsp?isnumber=10478455&punumber=38) ### 2023 [Constant Field of View Display Size Effects on First-Person Aiming Time](/index.php/publication/2023-10_constant-field-view-display-size-effects-first-person-aiming-time) [Josef Spjut](/index.php/person/josef-spjut), [Ben Boudaoud](/index.php/person/ben-boudaoud), [Joohwan Kim](/index.php/person/joohwan-kim) [Frontiers in Optics 2023](https://opg.optica.org/abstract.cfm?uri=LS-2023-FTu6A.1) [Rethinking Display Requirements for Esports and High Interactivity Applications](/index.php/publication/2023-08_rethinking-display-requirements-esports-and-high-interactivity-applications) [Joohwan Kim](/index.php/person/joohwan-kim), [Josef Spjut](/index.php/person/josef-spjut), [Ben Boudaoud](/index.php/person/ben-boudaoud), Benjamin Watson, Turner Whitted [SID](https://sid.onlinelibrary.wiley.com/doi/abs/10.1002/sdtp.16538) [Less is More: Rendering for Esports](/index.php/publication/2023-08_less-more-rendering-esports) Benjamin Watson, [Joohwan Kim](/index.php/person/joohwan-kim), [Josef Spjut](/index.php/person/josef-spjut), Peter Shirley, Byungjoo Lee [SIGGRAPH Frontiers Workshop](https://s2023.siggraph.org/presentation/?id=fwork_107&sess=sess290) [Mouse Sensitivity in First-person Targeting Tasks](/index.php/publication/2023-07_mouse-sensitivity-first-person-targeting-tasks) [Ben Boudaoud](/index.php/person/ben-boudaoud), [Josef Spjut](/index.php/person/josef-spjut), [Joohwan Kim](/index.php/person/joohwan-kim) [IEEE Transactions on Games](https://ieeexplore.ieee.org/document/10184504) ### 2022 [Display Size and Targeting Performance: Small Hurts, Large May Help](/index.php/publication/2022-12_display-size-and-targeting-performance-small-hurts-large-may-help) [Joohwan Kim](/index.php/person/joohwan-kim), Arjun Madhusudan, Benjamin Watson, [Ben Boudaoud](/index.php/person/ben-boudaoud), Roland Tarrazo, [Josef Spjut](/index.php/person/josef-spjut) [SIGGRAPH Asia 2022](https://sa2022.siggraph.org/en/presentation/?id=papers_311&sess=sess153) [Esports and expertise: what competitive gaming can teach us about mastery](/index.php/publication/2022-11_esports-and-expertise-what-competitive-gaming-can-teach-us-about-mastery) [Ben Boudaoud](/index.php/person/ben-boudaoud), [Josef Spjut](/index.php/person/josef-spjut), [Joohwan Kim](/index.php/person/joohwan-kim), Arjun Madhusudan, Benjamin Watson [ACM Interactions](https://dl.acm.org/doi/10.1145/3567954) [Mouse Sensitivity in First-person Targeting Tasks](/index.php/publication/2022-08_mouse-sensitivity-first-person-targeting-tasks) [Ben Boudaoud](/index.php/person/ben-boudaoud), [Josef Spjut](/index.php/person/josef-spjut), [Joohwan Kim](/index.php/person/joohwan-kim) [IEEE Conference on Games](https://ieee-cog.org/2022/) [FirstPersonScience: An Open Source Tool for Studying FPS Esports Aiming](/index.php/publication/2022-08_firstpersonscience-open-source-tool-studying-fps-esports-aiming) [Ben Boudaoud](/index.php/person/ben-boudaoud), [Josef Spjut](/index.php/person/josef-spjut), Pyarelal Knowles, Arjun Madhusudan, [Joohwan Kim](/index.php/person/joohwan-kim) [SIGGRAPH Talks](https://s2022.siggraph.org/presentation/?id=gensub_169&sess=sess165) ### 2021 [Noise-Aware Video Saliency Prediction](/index.php/publication/2021-11_noise-aware-video-saliency-prediction) [Ekta Prashnani](/index.php/person/ekta-prashnani), Orazio Gallo, [Joohwan Kim](/index.php/person/joohwan-kim), [Josef Spjut](/index.php/person/josef-spjut), Pradeep Sen, [Iuri Frosio](/index.php/person/iuri-frosio) [The British Machine Vision Conference (BMVC) - 2021](https://www.bmvc2021.com/) [Gaming at Warp Speed: Improving Aiming with Late Warp](/index.php/publication/2021-08_gaming-warp-speed-improving-aiming-late-warp) [Ben Boudaoud](/index.php/person/ben-boudaoud), Pyarelal Knowles, [Joohwan Kim](/index.php/person/joohwan-kim), [Josef Spjut](/index.php/person/josef-spjut) SIGGRAPH Emerging Technologies [A Case Study of First Person Aiming at Low Latency for Esports](/index.php/publication/2021-05_case-study-first-person-aiming-low-latency-esports) [Josef Spjut](/index.php/person/josef-spjut), [Ben Boudaoud](/index.php/person/ben-boudaoud), [Joohwan Kim](/index.php/person/joohwan-kim) [Esports and High Performance HCI Workshop](https://ehphci.org/) [Robust Vision-Based Cheat Detection in Competitive Gaming](/index.php/publication/2021-03_robust-vision-based-cheat-detection-competitive-gaming) Aditya Jonnalagadda, [Iuri Frosio](/index.php/person/iuri-frosio), Seth Schenider, Morgan McGuire, [Joohwan Kim](/index.php/person/joohwan-kim) [I3D ’21](http://i3dsymposium.github.io/2021/) ### 2020 [Post-Render Warp with Late Input Sampling Improves Aiming Under High Latency Conditions ](/index.php/publication/2020-07_post-render-warp-late-input-sampling-improves-aiming-under-high-latency) [Joohwan Kim](/index.php/person/joohwan-kim), Pyarelal Knowles, [Josef Spjut](/index.php/person/josef-spjut), [Ben Boudaoud](/index.php/person/ben-boudaoud), Morgan McGuire [High Performance Graphics 2020](https://www.highperformancegraphics.org/2020/) [Eccentricity Effects on Blur and Depth Perception](/index.php/publication/2020-02_eccentricity-effects-blur-and-depth-perception) Qi Sun, Fu-Chung Huang, Li-Yi Wei, [David Luebke](/index.php/person/david-luebke), Arie Kaufman, [Joohwan Kim](/index.php/person/joohwan-kim) [Optics Express](https://www.osapublishing.org/oe/fulltext.cfm?uri=oe-28-5-6734&id=427740) ### 2019 [Latency of 30 ms Benefits First Person Targeting Tasks More Than Refresh Rate Above 60 Hz](/index.php/publication/2019-11_latency-30-ms-benefits-first-person-targeting-tasks-more-refresh-rate-above-60) [Josef Spjut](/index.php/person/josef-spjut), [Ben Boudaoud](/index.php/person/ben-boudaoud), Kamran Binaee, [Jonghyun Kim](/index.php/person/jonghyun-kim), Zander Majercik, Morgan McGuire, [David Luebke](/index.php/person/david-luebke), [Joohwan Kim](/index.php/person/joohwan-kim) [Siggraph Asia Technical Briefs](https://sa2019.siggraph.org/attend/technical-briefs) [FirstPersonScience: Quantifying Psychophysics for First Person Shooter Tasks](/index.php/publication/2019-10_firstpersonscience-quantifying-psychophysics-first-person-shooter-tasks) [Josef Spjut](/index.php/person/josef-spjut), [Ben Boudaoud](/index.php/person/ben-boudaoud), Kamran Binaee, Zander Majercik, Morgan McGuire, [Joohwan Kim](/index.php/person/joohwan-kim) UCI Esports Conference [Esports Arms Race: Latency and Refresh Rate for Competitive Gaming Tasks](/index.php/publication/2019-09_esports-arms-race-latency-and-refresh-rate-competitive-gaming-tasks) [Joohwan Kim](/index.php/person/joohwan-kim), [Josef Spjut](/index.php/person/josef-spjut), Morgan McGuire, Zander Majercik, [Ben Boudaoud](/index.php/person/ben-boudaoud), Rachel Albert, [David Luebke](/index.php/person/david-luebke) [Journal of Vision](https://jov.arvojournals.org/issues.aspx?issueid=938192) [Foveated AR: Dynamically-Foveated Augmented Reality Display](/index.php/publication/2019-07_foveated-ar-dynamically-foveated-augmented-reality-display) [Jonghyun Kim](/index.php/person/jonghyun-kim), Youngmo Jeong, [Michael Stengel](/index.php/person/michael-stengel), Kaan Akşit, Rachel Albert, [Ben Boudaoud](/index.php/person/ben-boudaoud), [Trey Greer](/index.php/person/trey-greer), [Joohwan Kim](/index.php/person/joohwan-kim), [Ward Lopes](/index.php/person/ward-lopes), Zander Majercik, Peter Shirley, [Josef Spjut](/index.php/person/josef-spjut), Morgan McGuire, [David Luebke](/index.php/person/david-luebke) SIGGRAPH 2019 Technical Paper [NVGaze: An Anatomically-Informed Dataset for Low-Latency, Near-Eye Gaze Estimation](/index.php/publication/2019-05_nvgaze-anatomically-informed-dataset-low-latency-near-eye-gaze-estimation) [Joohwan Kim](/index.php/person/joohwan-kim), [Michael Stengel](/index.php/person/michael-stengel), Alexander Majercik, [Shalini De Mello](/index.php/person/shalini-de-mello), David Dunn, [Samuli Laine](/index.php/person/samuli-laine), Morgan McGuire, [David Luebke](/index.php/person/david-luebke) ACM Conference on Human-Computer-Interaction (CHI) 2019 ### 2017 [Perceptually-Guided Foveation for Light Field Displays](/index.php/publication/2017-11_perceptually-guided-foveation-light-field-displays) Qi Sun, Fu-Chung Huang, [Joohwan Kim](/index.php/person/joohwan-kim), Li-Yi Wei, [David Luebke](/index.php/person/david-luebke), Arie Kaufman [ACM SIGGRAPH ASIA 2017](https://sa2017.siggraph.org/) [Latency Requirements for Foveated Rendering in Virtual Reality](/index.php/publication/2017-09_latency-requirements-foveated-rendering-virtual-reality) Rachel Albert, Anjul Patney, [David Luebke](/index.php/person/david-luebke), [Joohwan Kim](/index.php/person/joohwan-kim) [ACM Transactions on Applied Perception (TAP) - Special Issue SAP 2017](https://dl.acm.org/citation.cfm?id=3127589) ### 2016 [Towards Foveated Rendering for Gaze-Tracked Virtual Reality](/index.php/publication/2016-12_towards-foveated-rendering-gaze-tracked-virtual-reality) Anjul Patney, Marco Salvi, [Joohwan Kim](/index.php/person/joohwan-kim), Anton Kaplanyan, [Chris Wyman](/index.php/person/chris-wyman), Nir Benty, [David Luebke](/index.php/person/david-luebke), [Aaron Lefohn](/index.php/person/aaron-lefohn) ACM Transactions on Graphics (Proceedings of SIGGRAPH Asia) [Perceptually-Based Foveated Virtual Reality](/index.php/publication/2016-07_perceptually-based-foveated-virtual-reality) Anjul Patney, [Joohwan Kim](/index.php/person/joohwan-kim), Marco Salvi, Anton Kaplanyan, [Chris Wyman](/index.php/person/chris-wyman), Nir Benty, [Aaron Lefohn](/index.php/person/aaron-lefohn), [David Luebke](/index.php/person/david-luebke) [SIGGRAPH Emerging Technologies](http://s2016.siggraph.org/content/emerging-technologies)