1. FaceBlock: Semantic Context-Aware Privacy for Mobile Devices
R.Yus, P. Pappachan, P.K.Das, E. Mena, A. Joshi and T. Finin
U. Zaragoza
UMBC
FaceBlock automatically obscures faces in pictures based on dynamic, context-aware policies
Glass users
Everyone else
Using Google Glass for photography could make you a social pariah
Being photographed without consent can be a worry
Users take their picture and specify a policy regarding pictures taken by others, e.g., obscure me in pictures taken by strangers while not at work or after 5:00pm
FaceBlock automatically generates an eigenface id, discovers nearby Glass devices running FaceBlock and exchanges information with them
User’s device maintains context model and informs Glass device when to block
FaceBlock makes respecting personal privacy as easy as using Google Glass itself
Automatically opt out of pictures based on context dependent policy rules
FaceBlock on Glass responds to other devices, receiving eigenface ids and block status messages
Faces in pictures are identified and compared to active eigenface ids
When a face is matched, its block status is checked and the face obfuscated as needed
A simple protocol supports device discovery and data exchange
Contexts are modeled in RDF supported by OWL ontologies
Supported by NSF # & # , CICYT TIN C02-02 and DGA FSE