Abstract: A capability for providing access control for a geo-fenced service (GFS) is presented herein. In general, a GFS is a network-hosted service having associated therewith a spatial region within which the network-hosted service may be accessed. The spatial region of the GFS may be defined based on one or more witnesses co-located at a location of the spatial region within which the GFS may be accessed, which are associated with the GFS in order to support access control for the GFS. The capability for providing access control for the GFS, based on a request by a user device to access the GFS, uses one or more co-located witnesses associated with the GFS to verify the presence of the user device within the spatial region within which the GFS may be accessed before granting access by the user device to the GFS.

Abstract: A Method for retrieving at least one image from a database (DB) of images based on at least two input images (image i, image j), comprises the steps of determining (120) first low level feature correspondences (LC1) between said at least two input images (image i, image j), searching (200) within said database (DB) for at least two sets (Mi, Mj) of images respectively matching said at least to images (image i, image j), determining (120) second low level features correspondences (LC2) between respective images from said at least two sets of images (Mi, Mj), determining (130) a first set of relationships (RLC1) between entities of said at least two input images (image i, image j) based on said first low level feature correspondences (LC1), determining (130) a second set of relationships (RLC2) between respective entities of said respective images from said at least two sets of images (Mi, Mj) based on said second low level feature correspondences (LC2), identifying (300) matching relationships between said fir

Abstract: The invention pertains to a terminal for exchanging messages by placing tokens near it. The terminal comprises communication means to exchange information with a database, detection means for identifying local tokens placed near the terminal, display means for displaying remote tokens, and proximity logic configured to assert a proximity relationship between tokens or between a token and a reference point. The terminal exchanges information about the topology of its tokens and that of tokens present at other terminals via the database. The terminal displays tokens present near remote copies of the local tokens, based on information obtained from the database.

Abstract: A Method for retrieving at least one image from a database (DB) of images based on at least two input images (image i, image j), comprises the steps of determining (120) first low level feature correspondences (LC1) between said at least two input images (image i, image j), searching (200) within said database (DB) for at least two sets (Mi, Mj) of images respectively matching said at least to images (image i, image j), determining (120) second low level features correspondences (LC2) between respective images from said at least two sets of images (Mi, Mj), determining (130) a first set of relationships (RLC1) between entities of said at least two input images (image i, image j) based on said first low level feature correspondences (LC1), determining (130) a second set of relationships (RLC2) between respective entities of said respective images from said at least two sets of images (Mi, Mj) based on said second low level feature correspondences (LC2), identifying (300) matching relationships between said fir

Abstract: A capability for providing access control for a geo-fenced service (GFS) is presented herein. In general, a GFS is a network-hosted service having associated therewith a spatial region within which the network-hosted service may be accessed. The spatial region of the GFS may be defined based on one or more witnesses co-located at a location of the spatial region within which the GFS may be accessed, which are associated with the GFS in order to support access control for the GFS. The capability for providing access control for the GFS, based on a request by a user device to access the GFS, uses one or more co-located witnesses associated with the GFS to verify the presence of the user device within the spatial region within which the GFS may be accessed before granting access by the user device to the GFS.

Abstract: The invention pertains to a terminal for exchanging messages by placing tokens near it. The terminal comprises communication means to exchange information with a database, detection means for identifying local tokens placed near the terminal, display means for displaying remote tokens, and proximity logic configured to assert a proximity relationship between tokens or between a token and a reference point. The terminal exchanges information about the topology of its tokens and that of tokens present at other terminals via the database. The terminal displays tokens present near remote copies of the local tokens, based on information obtained from the database.