Is It Really You? Exploring Biometric Verification Scenarios in Photorealistic Talking-Head Avatar Videos - Pedrouzo-Rodriguez, Laura; Delgado-DeRobles, Pedro; Gomez, Luis F.; Tolosana, Ruben; Vera-Rodriguez, Ruben; Morales, Aythami; Fierrez, Julian (2025 IEEE International Joint Conference on Biometrics (IJCB), 2026)