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I am a PhD student at Notre Dame, studying Computer Science 📚

My published works explore topics in human perception-informed training, biometrics, computer vision, and AI/ML 📄

I create generative art under the name ten twentythree 🎨

2026

What's Old is New Again: Classical Dimensionality Reduction for Efficient Saliency-Guided Biometric Attack Detection

• Samuel Webster and Walter Scheirer
• 2026 IEEE International Joint Conference on Biometrics (IJCB) in Rome, Italy
• Paper: IEEE Xplore (Coming Soon) or arXiv
• Code: GitHub Repo

Psychophysically-Guided Training for Fingerprint Presentation Attack Detection

• Samuel Webster, Walter Scheirer, and Adam Czajka
• Journal extension for a special edition of IEEE Transactions on Biometrics, Behavior, and Identity (T-BIOM)
• Paper: IEEE Xplore or TechRxiv
• Code: GitHub Repo

2025

Saliency-Guided Training for Fingerprint Presentation Attack Detection

• Samuel Webster and Adam Czajka
• Oral and poster presentations at the 2025 IEEE International Joint Conference on Biometrics (IJCB) in Osaka, Japan
• Paper: IEEE Xplore or arXiv
• Code: GitHub Repo
• Dataset: Notre Dame Computer Vision Research Laboratory Site

Iris Liveness Detection Competition (LivDet-Iris) - The 2025 Edition

• Mahsa Mitcheff*, Afzal Hossain*, Samuel Webster* et al.
• Oral and poster presentations at the 2025 IEEE International Joint Conference on Biometrics (IJCB) in Osaka, Japan
• Website: Competition Site
• Paper: IEEE Xplore
• Code: GitHub Repo
• Dataset: Notre Dame Computer Vision Research Laboratory Site

2024

Grains of Saliency: Optimizing Saliency-based Training of Biometric Attack Detection Models

• Colton R. Crum, Samuel Webster, and Adam Czajka
• Poster presentation at the 2024 IEEE International Joint Conference on Biometrics (IJCB) in Buffalo, New York
• Paper: arXiv

I love writing algorithms that produce infinite, randomly variant works of generative art.

I post regularly on my Instagram. You can also view/interact with a selection of my work on my website.

This is a strictly hand-coded process -- no AI is used in the production of my work!

I write generative art using p5.js, a JavaScript creative coding library. In April 2026, I purchased a pen plotter, which I use to draw my algorithmically-generated works in physical mediums.