A smiling man with salt-and-pepper hair wears a white linen collared shirt with wooden buttons against a gray background.
Office
182E Fitzpatrick Hall Of Engineering
Notre Dame, IN 46556
Email
aczajka@nd.edu

Research Interests

My research focuses on human biometrics and security, especially on iris recognition and methods of detecting unknown presentation attacks.

In my research I try to understand how human perception of abnormal (from a biometric point of view) signals can be effectively used to build computer algorithms generalizing better on unknown spoofs and how computer algorithms can aid humans in examining biometric samples.

In general, I am fascinated by a wide spectrum of research in computer vision, pattern recognition and machine learning, and the non-obvious intersections with psychology, medical sciences, and art.