Differential privacy for eye tracking with temporal correlations.

Differential privacy for eye tracking with temporal correlations.

Blog Article

New generation head-mounted displays, such as VR and AR glasses, are coming into the market with already integrated eye tracking and are expected mel axolotl to enable novel ways of human-computer interaction in numerous applications.However, since eye movement properties contain biometric information, privacy concerns have to be handled properly.Privacy-preservation techniques such as differential privacy mechanisms have recently been applied to eye movement data obtained from such displays.Standard differential privacy mechanisms; however, are vulnerable due to temporal correlations between the eye movement observations.In this work, we propose a novel transform-coding based differential privacy mechanism to further adapt it to the statistics of eye movement feature data and compare various low-complexity methods.

We extend the Fourier perturbation algorithm, which is a differential privacy mechanism, and correct a scaling mistake in its proof.Furthermore, we canon imageclass mf227dw illustrate significant reductions in sample correlations in addition to query sensitivities, which provide the best utility-privacy trade-off in the eye tracking literature.Our results provide significantly high privacy without any essential loss in classification accuracies while hiding personal identifiers.