Timotheos Samartzidis

AI · Governance · Systems

Research

Published academic work in computer vision, biometrics, and AI security.

[ICB 2018 Conference Publication]

"The Dark Side of the Face: Exploring the Ultraviolet Spectrum for Face Biometrics"

ICB 2018 · International Conference on Biometrics

Novel biometric modality using UV imaging for melanin pigmentation analysis. Evaluated on 91-subject multiethnic dataset with SURF feature extraction. This research demonstrates how UV spectrum imaging can enhance face recognition accuracy and robustness by capturing melanin distribution patterns invisible to standard cameras.

View Paper →

[MCPR 2017 Conference Publication]

"Fiber Defect Detection of Inhomogeneous Voluminous Textiles"

MCPR 2017 · Mexican Conference on Pattern Recognition

Computer vision approach for detecting defects in complex textile materials using advanced image processing. Developed algorithms capable of identifying structural anomalies in three-dimensional textile surfaces, with applications in quality control and manufacturing.

View Paper →

[ICDP 2016 Conference Publication]

"Attack Detection in an Autonomous Entrance System Using Optical Flow"

ICDP 2016 · International Conference on Digital Privacy

Security system utilizing optical flow analysis for presentation attack detection in automated access control. Implements real-time motion analysis to distinguish between genuine users and spoofing attempts, enhancing biometric system security.

View Paper →

[FFER 2015 Conference Publication]

"Personalized Face Reference from Video: Key-Face Selection and Feature-Level Fusion"

FFER 2015 · Facial Features Extraction and Recognition

Method for optimal face frame selection from video sequences with subject-specific weighting, evaluated on YouTube Faces dataset. Addresses the challenge of selecting the most representative frames for face recognition in unconstrained video environments.

View Paper →

[VRIPHYS 2014 Conference Publication]

"Virtual Fitting Pipeline: Body Dimension Recognition, Cloth Modeling, and On-Body Simulation"

VRIPHYS 2014 · Virtual Reality Interactions and Physical Simulations

Three-stage pipeline combining anthropometric measurement, cloth physics, and avatar simulation for virtual garment fitting. Integrates computer vision-based body scanning with physically-based cloth simulation for realistic virtual try-on experiences.

View Paper →

Institutional Affiliation:
Fraunhofer Institute for Computer Graphics Research (IGD)
Department of Competence Center for Cultural Heritage Digitization

Research conducted from 2013-2018 focusing on biometric systems, computer vision, and AI security applications.