Josef Spjut

Effects of Frame Rates up to 500 Hz on First Person Shooter Game Players

Samin Shahriar Tokey, Ben Boudaoud, Joo-Hwan Kim, Josef Spjut et autres

Computer games – and computer game players – often drive technology improvements, with graphics cards and monitors pushing the limits of display technologies. High frame rates, in particular, promise to provide lower latencies and smoother game visuals to gamers, especially important for …

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Adaptive Time Delay for Improving Player Experience and Fairness in First-Person Shooter Games with Network Latency

Samin Shahriar Tokey, Ben Boudaoud, Josef Spjut, Mark Claypool

In a multiplayer networked game, actions for players with higher latencies are received and (potentially) acted upon later than players with lower latencies, leading to unfairness, especially important in competitive games. Time delay is a latency compensation technique that can mitigate this …

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Impact of Frametime Spikes on Performance and Quality of Experience in Platformer Games

Samin Shahriar Tokey, Ben Boudaoud, Josef Spjut, Mark Claypool

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Clustered Codebook Quantization for 2D Gaussian-based Image Compression

Runze Cheng, Yicheng Zhan, Josef Spjut, Kaan Akşit

Gaussian-based image representations effectively model image content using compact parametric primitives while preserving high visual fidelity [Zhang et al. 2025a], yet storing a large number of floating-point parameters per primitive degrades rate-distortion efficiency at higher fidelity targets. To improve the rate-distortion performance …

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CTRL-G: Controllable Generative Graphics for Games

Josef Spjut, Arnav H. Jhala

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Performance, Rendering, and Interaction for Competitive Esports (PRICE)

Josef Spjut, Benjamin A. Watson, Madison Klarkowski, Rulon Raymond et autres

The global phenomenon of esports has created new and demanding challenges for computer graphics, interactive systems, and human-computer interaction. Competitive gaming pushes the boundaries of real-time rendering, latency reduction, and perceptual fidelity, where milliseconds and pixels can determine the outcome of multi-million …

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Towards Field Experiments in Esports Competition

Arjun Madhusudan, Josef Spjut, Ben Boudaoud, Joohwan Kim et autres

Esports is having a significant societal impact. Yet scheduling competitive group play during experiments is difficult, and recreating competitive environments in the lab is challenging. To address these problems, we adopt the field experiment methodology, to create hybrid tournament-experiments — experimentation integrated …

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Understanding Emergent Non-Verbal Communication in the Delta Force Competitive Video Game through Multimodal AI Analysis

Guo J, Josef Spjut

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Towards Field Experiments in Esports Competition

Arjun Madhusudan, Josef Spjut, Ben Boudaoud, Joohwan Kim et autres

Esports is having a significant societal impact. Yet scheduling competitive group play during experiments is difficult, and recreating competitive environments in the lab is challenging. To address these problems, we adopt the field experiment methodology, to create hybrid tournament-experiments — experimentation integrated …

us (code pays fourni par la source)

Timing Matters: The Impact of Event-Specific Frametime Spikes in First-Person Shooter Games

Samin Shahriar Tokey, Ben Boudaoud, Joo-Hwan Kim, Josef Spjut et autres

Frametime spikes can disrupt gameplay in first-person shooter (FPS) games, affecting both performance and player experience. This paper examines how spikes during specific game events impact players. We developed a custom FPS game that maintains a steady 500 frames/s while inducing frametime …

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Lead Rush: A First-Person Shooter for User Studies and Understanding Effects of Frame Time Spikes

Samin Shahriar Tokey, Ben Boudaoud, Joohwan Kim, Josef Spjut et autres

User studies are a cornerstone of human-computer interaction research, including measures of user performance and quality of experience (QoE) – particularly important for games where frame rates and frame timings can impact performance. Unfortunately, commercial games have limited options for customization and …

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Editing Physiological Signals in Videos Using Latent Representations

Akshay Paruchuri, Josef Spjut, Kaan Akşit

Camera-based physiological signal estimation provides a non-contact and convenient means to monitor Heart Rate (HR). However, the presence of vital signals in facial videos raises significant privacy concerns, as they can reveal sensitive personal information related to the health and emotional states …