Abstract:
A method for transforming an image descriptor, based on a gradient histogram (h) having a plurality of histogram bins (hi), into a transformed gradient histogram descriptor (v) including a set of values (vj), wherein it is provided the step of applying at least one criterium for calculating the set of values (vj), at least one criterium having a location criterium of the histogram bins (hi). The invention also relates to an image processing device suitable for carrying out the method.
Abstract:
A method for encoding an image descriptor (H) based on gradient histograms (hp) into a transformed descriptor (V) having transformed subdescriptors (vp), wherein each gradient histogram (hp) includes a plurality of histogram bins (hi) and each subdescriptor (vp) includes a set of values (vj), wherein the subdescriptors (vp) are generated according to an element utilisation order list specifying a subdescriptor index (p) of the set of sub descriptors (vp) and an element index (j) of the set of values (vj).
Abstract:
A system for filtering electronic messages includes a client machine that includes a security module, wherein the security module has access to at least one message sent by a sender identified in the message through respective identification data and received by the client machine, wherein the security module is configured for reading the sender's identification data from the header of the message, finding and storing any potentially harmful contents of the body of the message, verifying if said potentially harmful contents satisfy validation conditions which are specific for the sender having the identification data specified in the header of the message, allowing or denying access to at least part of the body of the message, in which the potentially harmful contents are present, based on the result of the verification.
Abstract:
A method for managing the supply of electric energy to a community of users (UP1, UP2, . . . UPN) includes determining a supply, to each user of the community of users (UP1, UP2, . . . UPN), of a combination of electric energy coming from at least one system for producing energy from a local source (100) and from the at least one system for supplying energy managed by an external distributor (110), wherein the combination of electric energy can be determined specifically for each user; adjusting, for each user of the community of users, the supply of the fraction of electric energy coming from the local source (100), as a function of the electric energy coming from the local source (100) to be distributed to the other users of the community of users (UP1, UP2, . . . UPN), so as to give priority to taking electric energy directly from the system for producing energy from a local source (100) over the at least one system for supplying electric energy managed by an external distributor (110).
Abstract:
A video content receiving apparatus (103a; 103b) includes an interface (209, 301) for interfacing to at least one associable video reproducing apparatus (102), and including: a receiver for receiving video contents from at least one source of contents (104) through a connection (201a, 203a; 201b, 203b) connected to a plurality of distribution platforms (105, 106), wherein a first connection (203a; 203b) to a first distribution platform (105) is of the broadband type, and wherein a second connection (201a; 201b) to a second distribution platform (106) is of the broadcast type; a first identifier for identifying a video content to be reproduced; a second identifier for identifying at least one active distribution platform on which said video content to be reproduced is currently being transmitted by the source of contents (104); a selector for selecting the reception of the video content through the active distribution platform; a switch for switching between the first connection (203a; 203b) and the second connection (201a; 201b), or vice versa, on the basis of a command signal received by the receiving apparatus (103a; 130b); and a video processor for generating a video signal (220; 310) that includes the video content in a form that is reproducible by a reproducing apparatus (102) associable with the receiving apparatus (103; 103a; 103b) through the interfacer.
Abstract:
A method for broadcasting messages in a cellular mobile communications system with broadcast functionality includes the steps of: selecting a geographic area over which the message broadcasting must be carried out; obtaining information adapted to identify the languages used in mobile terminals referring to the cellular mobile communications system within the geographic area; composing the messages in the set of the identified languages, thus obtaining one or more multilanguage messages; broadcasting the one or more multilanguage messages to said mobile terminals.
Abstract:
A system for localizing an object of interest in a monitored space includes a plurality of capacitive sensors for sensing changes in the status of a space, adapted to electrically interact in a contactless way with a ground surface so as to provide a capacitance varying on the basis of such changes, and adapted to detect at least a time evolution of the capacitance and to produce a capacitance-depending signal, a filtering unit configured for reducing the noise level in the time evolution of such capacitance by filtering the capacitance-depending signal provided by the capacitive sensors, so that corresponding filtered signals are produced, and a central device in signal communication with the capacitive sensors. The central device is configured for acquiring the filtered signals of each capacitive sensor, and for determining the position of the object of interest inside the space by inferring at least a distance of the object on the basis of the filtered signals acquired from at least one of the sensors detecting the object, and by combining the at least a distance with positional data defining the positions of the plurality of capacitive sensors in the monitored space.
Abstract:
A system for filtering electronic messages includes a client machine that includes a security module, wherein the security module has access to at least one message sent by a sender identified in the message through respective identification data and received by the client machine, wherein the security module is configured for reading the sender's identification data from the header of the message, finding and storing any potentially harmful contents of the body of the message, verifying if said potentially harmful contents satisfy validation conditions which are specific for the sender having the identification data specified in the header of the message, allowing or denying access to at least part of the body of the message, in which the potentially harmful contents are present, based on the result of the verification.
Abstract:
A method and an apparatus are provided for encoding and/or decoding digital images or video streams. The encoding apparatus includes a processor configured for reading at least a portion of an image (f), determining a rotation angle (θ) on the basis of the portion of the image (f), determining rotated transform matrix (V′) which is the result of a rotation of at least one basis vector of a Discrete Cosine Transform matrix (V) by the rotation angle (θ), computing transformed coefficients (f̂) on the basis of the pixel values contained in the portion of the image (f) and the rotated transform information (V′), outputting the transformed coefficients (f̂) to the destination.
Abstract:
A method is described for generating a color image composed of a plurality of components (Y, U, V) by starting from at least one depth or disparity map (DM1, DM2), wherein a first set of pixels of said at least one depth or disparity map (DM1, DM2) is entered into the luminance component (Y) of said color image, and wherein a second and a third sets of pixels of said at least one depth or disparity map (DM1, DM2) are entered into the two chrominance components (U, V) of said color image.