About

I recently completed my PhD in Computer Science at Texas State University, where I worked under the supervision of Dr. Oleg Komogortsev in the OK Lab. My research focuses on HCI, machine learning, signal processing, and eye tracking, including eye-movement biometrics and deep learning for eye-tracking signals, with an emphasis on privacy-preserving gaze interaction.

Research Interests

🖥️

Human Computer Interaction

Gaze-based interaction, signal quality, and privacy-preserving interfaces.

🤖

Behavioral AI

Modelling human behavioural signals, with eye movements as a behavioural and biometric trait.

🥽

XR

Eye tracking in virtual and augmented reality: authentication, cybersickness, and interaction.

🧠

Machine Learning

Deep learning for temporal-persistence biometrics and subject-specific gaze synthesis.

Education

Ph.D. in Computer Science
Texas State University, San Marcos, TX
Jan 2021 – Jul 2026
B.S. in Information and Communication Engineering
Bangladesh University of Professionals, Dhaka, Bangladesh
2015 – 2018

Ph.D. Timeline

Aug 2026 Paper accepted at VRST 2026 — on oculomotor behaviour tracking cybersickness progression in VR.
July 2026 Two papers accepted at IJCB 2026 — on continuous gaze offset score fusion and subject-specific gaze synthesis.
June 2026 I have defended my dissertation titled- Toward Privacy-Preserving Gaze Interaction: Lightweight Real-Time Signal Transformation and Operational Spatial Accuracy.
June 2026 Awarded the Merrick Merit Fellowship.
April 2026 Papers accepted at IEEE Access — on Gaze Recalibration.
March 2026 Papers accepted at IEEE TBIOM — on reliability of embedding learned from Deep learning based gaze authentication.
July 2025 Two papers accepted at IJCB 2025 — on temporal-persistence of deep-learning biometrics and ocular authentication fusion.
Nov 2024 Successfully defended my dissertation proposal at Texas State University.

Publications

2026
Embedding Reliability as a Predictor of Biometric Performance in Eye-Movement Biometrics
Mehedi Hasan Raju, Lee Friedman, Oleg Komogortsev
IEEE Transactions on Biometrics, Behavior, and Identity Science
Summary DOI
Gaze Authentication: Factors Influencing Authentication Performance
Dillon J Lohr, Michael J Proulx, Mehedi Hasan Raju, Oleg Komogortsev
IEEE Access
Summary DOI
Enhancing Eye Movement Biometrics for User Authentication via Continuous Gaze Offset Score Fusion
Hashim Aziz, Mehedi Hasan Raju, Oleg Komogortsev
IJCB 2026 · IEEE International Joint Conference on Biometrics
Quantitative and Qualitative Comparison of Generative Models for Subject-Specific Gaze Synthesis: Diffusion vs GANs
Kamrul Hasan, Dmytro Katrychuk, Mehedi Hasan Raju, Oleg Komogortsev
IJCB 2026 · IEEE International Joint Conference on Biometrics
Gaze Under Strain: How Oculomotor Behavior Tracks Cybersickness Progression in VR
Nevzat Demirseren, Mehedi Hasan Raju, Oleg Komogortsev, Isayas Adhanom
VRST 2026 · ACM Symposium on Virtual Reality Software and Technology
2025
From Features to Embeddings: Extending the Temporal-Persistence Principle to Deep-Learning Eye-movement Biometrics
Mehedi Hasan Raju, Lee Friedman, Dillon J Lohr, Oleg Komogortsev
IJCB 2025 · IEEE International Joint Conference on Biometrics
DOI
Ocular Authentication: Fusion of Gaze and Periocular Modalities
Dillon J Lohr, Michael J Proulx, Mehedi Hasan Raju, Oleg Komogortsev
IJCB 2025 · IEEE International Joint Conference on Biometrics
DOI
Evaluating Eye Tracking Signal Quality with Real-time Gaze Interaction Simulation: A Study Using an Offline Dataset
Mehedi Hasan Raju, Samantha Aziz, Michael J Proulx, Oleg Komogortsev
ETRA 2025 · ACM Symposium on Eye Tracking Research and Applications
DOI Code
Device-Specific Style Transfer of Eye-Tracking Signals
Dillon J Lohr, Dmytro Katrychuk, Samantha Aziz, Mehedi Hasan Raju, Oleg Komogortsev
ETRA 2025 · ACM Symposium on Eye Tracking Research and Applications
DOI
Eye Movement Biometrics in Virtual Reality: A Comparison Between VR Headset and High-End Eye-Tracker Collected Dataset
Mehedi Hasan Raju, Oleg Komogortsev
IEEE SPW 2025 · IEEE Security and Privacy Workshops
DOI
The Percentile-Matching Technique for Synthetic Eye Tracking Signal Degradation: A Biometric Case Study
Henry Griffith, Dmytro Katrychuk, Mehedi Hasan Raju, Samantha Aziz, Dillon J Lohr, Oleg Komogortsev
Public Library of Science (PLOS) One
DOI
2024
Signal vs Noise in Eye-tracking Data: Biometric Implications and Identity Information Across Frequencies
Mehedi Hasan Raju, Lee Friedman, Dillon Lohr, Oleg Komogortsev
ETRA 2024 · ACM Symposium on Eye Tracking Research and Applications
DOI Code
2023
Determining which sine wave frequencies correspond to signal and which correspond to noise in eye-tracking time-series
Mehedi Hasan Raju, Lee Friedman, Troy M Bouman, Oleg Komogortsev
Journal of Eye Movement Research
DOI Code
Filtering eye-tracking data from an EyeLink 1000: Comparing heuristic, Savitzky-Golay, IIR and FIR digital filters
Mehedi Hasan Raju, Lee Friedman, Troy M Bouman, Oleg Komogortsev
Journal of Eye Movement Research
DOI Code
2022
Iris Print Attack Detection using Eye Movement Signals
Mehedi Hasan Raju, Dillon J Lohr, Oleg Komogortsev
ETRA 2022 · ACM Symposium on Eye Tracking Research and Applications
DOI Code
2020 – 2021
Mumap: Modified Ultralightweight Mutual Authentication Protocol for RFID Enabled IoT Networks
Mehedi Hasan Raju, Mosabber Uddin Ahmed, Md Atiqur Rahman Ahad
JIIAE 2021 · Journal of the Institute of Industrial Applications Engineers
DOI
Contactless Fall Detection for the Elderly
M Jaber Al Nahian, Mehedi Hasan Raju, Zarin Tasnim, Mufti Mahmud, Md Atiqur Rahman Ahad, M Shamim Kaiser
Contactless Human Activity Analysis (Springer, 2021)
DOI
Security Analysis and a Potential Layer to Layer Security Solution of Medical Cyber-Physical Systems
Mehedi Hasan Raju, Mosabber Uddin Ahmed, Md Atiqur Rahman Ahad
IoT in Biomedical and Cyber Physical Systems (Springer, 2020)
DOI
Health Informatics: Challenges and Opportunities
Mehedi Hasan Raju, Mosabber Uddin Ahmed, Md Atiqur Rahman Ahad
Signal Processing for Computational Health Informatics (Springer, 2020)
DOI

Awards & Recognition

🏆
Graduate College Scholarship
Texas State University  ·  2024, 2025, 2026
🎖️
Doctoral Retention Scholarship
Texas State University  ·  2023-2024
🏅
Computer Science Research Excellence Award
Texas State University  ·  2022, 2023, 2026
🎓
Merrick Merit Fellowship
Texas State University  ·  2026

Contact

Get in Touch

📧 m.raju@txstate.edu
🏫 Dept. of Computer Science, Texas State University
📍 San Marcos, TX 78666, USA