4 papers
I'm Hearing (Different) Voices: Anonymous Voices to Protect User Privacy
Henry Turner, Giulio Lovisotto, Simon Eberz +1
In this paper, we present AltVoice -- a system designed to help user's protect their privacy when using remotely accessed voice services. The system allows a user to conceal their…
Speaker Anonymization with Distribution-Preserving X-Vector Generation for the VoicePrivacy Challenge 2020
Henry Turner, Giulio Lovisotto, Ivan Martinovic
In this paper, we present a Distribution-Preserving Voice Anonymization technique, as our submission to the VoicePrivacy Challenge 2020. We observe that the challenge baseline syst…
SLAP: Improving Physical Adversarial Examples with Short-Lived Adversarial Perturbations
Giulio Lovisotto, Henry Turner, Ivo Sluganovic +2
Research into adversarial examples (AE) has developed rapidly, yet static adversarial patches are still the main technique for conducting attacks in the real world, despite being o…
Seeing Red: PPG Biometrics Using Smartphone Cameras
Giulio Lovisotto, Henry Turner, Simon Eberz +1
In this paper, we propose a system that enables photoplethysmogram (PPG)-based authentication by using a smartphone camera. PPG signals are obtained by recording a video from the c…