Abstract: A method for decoding a data stream representing a multi-view video, including coded data representative of at least one sub-image, including texture data and depth data associated with the texture data, the sub-image including at least one zone, referred to as a useful zone, for generating an image of a view. An indicator is decoded, indicating whether the sub-image is coded according to a first method or a second method. When the indicator indicates that the sub-image is coded according to the first method, a binary map is decoded indicating for at least one pixel of the sub-image whether the pixel belongs to the useful zone. When the indicator indicates that the sub-image is coded according to the second method, the texture and depth data of the sub-image are decoded. The depth data of the sub-image for the pixels situated outside the useful zone includes a decoded depth value.

Abstract: A method for supervising control of a parallel processing operation distributed in a communication network. The distributed parallel processing operation includes a control method implemented by a service provision device and multiple processing components, including first and second components distributed over nodes of the network. The control method includes a series of steps including triggering execution of a processing component by a node. The control supervision method includes triggering the execution of a processing component as soon as the control method has reached the step of triggering the execution of this component.

Abstract: A method for managing energy, and corresponding electronic device and computer program. The method for managing energy implemented by an electronic device includes: obtaining at least one value of ambient energy of a first type, representative of an exposure of a first piece of equipment to the ambient energy; and providing at least one recommendation relating to at least one candidate conversion element suitable for converting an ambient energy of the first type into energy of a second type useable to power the first piece of equipment, the at least one recommendation taking into account the at least one obtained value of ambient energy of the first type.

Abstract: A method for encoding audio signals forming in time a succession of frames of samples, in each of n channels of an ambisonic representation of order higher than 0. The method includes: determining, for the current frame to be encoded, the binary value indicating an active or inactive mode of a decorrelation processing operation to be applied to the signals of the current frame and encoding this value into the bitstream; in the case where the mode is determined to be active, encoding into the bitstream decorrelation-processing information; generating an output signal to be encoded into the bitstream, depending on the mode determined for the current frame and the mode determined for the preceding frame. A corresponding decoding method is provided, as well as encoding and decoding devices implementing the respective encoding and decoding methods.

Abstract: A method for processing data of an instant messaging application in which users participating in a discussion exchange messages via respective terminals. The method, implemented by a computerized chatbot, includes: analyzing the exchanged messages in order to identify a current discussion context, determining a relevance of the chatbot intervening in the discussion, on the basis of the current context and on the basis of predetermined rules, and on the basis of the determination, sending at least one message appropriate to the current context to at least one of the participants.

Abstract: A method for controlling a client device to access a service via at least one network. The control method is implemented by a trusted entity for the service and/or the client device and includes: controlling a configuration of the client device, during access by the latter to the service, in order for it to transmit, to at least one device designated for the service and authorised by the trusted entity, at least one domain name resolution request emitted by the client device within the context of the service.

Abstract: A method for transmitting signalling information from a base station to at least two terminals associated with the base station. The method includes transmitting at least two physical unicast control channels each intended for one of the at least two terminals, each physical unicast control channel carrying a unicast control message carrying transmission parameters intended to be used for the transmission of a multicast control message, and each physical unicast control channel being encoded with a temporary network identifier uniquely identifying the terminal for which it is intended, the multicast control message carrying at least two sets of transmission parameters for use in transmitting pay load data to the at least two terminals respectively.

Abstract: A method for simultaneous localization and mapping of an object in an indoor environment, including autonomous location and mapping. The method includes generating a map of the indoor environment and determining movement of the object on the basis of data captured by the object, the localization and mapping method jointly generating the map and determining the movement. Ambiguity between two positions of an obstacle on a map during generation is thus resolved by taking into account the movement of the object generating the map, without the need for complex implementation elements.

Abstract: A method is described for determining a graph modelling a zone comprising at least one transmitting device for backscattering an ambient signal, emitted by a transmitting device, towards a receiving device (for detection by said receiving device. The method includes obtaining at least one coverage area of said zone, said at least one coverage area having been determined for a location of said zone and corresponding to a datum identifying the transmitting device or devices detected by the receiving device when the transmitting device occupies said location. The method also includes determining a graph of which at least one vertex consists of said at least one coverage area, two vertices of said graph being connected by an edge if the coverage areas relating to said two vertices comprise at least one transmitting device detected in common.

Abstract: A method is described for implementing a current service of a chain of n services, the method including receiving, from the service preceding the current service in the chain, a first routing token comprising message routing data between the services in the chain, and verifying that the current service is a legitimate recipient of the first routing token. After implementing a function of the current service, the method also includes generating a current chaining token from a data of evidence of a passage through the current service, and transmitting, to the service following the current service in the chain, the current chaining token and a second routing token determined from the first routing token.

Abstract: A method of matching a set to be evaluated and a reference list, the reference list being associated with a reference vector representative of the entries in the list. Such a method of matching includes: calculating a distance between the reference vector and a vector, associated with the set to evaluate, representative of elements contained in the set to evaluate, the elements comprising character strings and groups of character strings; for each entry in the reference list, calculating a first matching score for the set to evaluate and for the entry in the reference list, on the basis of the distance calculated between the reference vector and the vector associated with the set to evaluate; providing a list of entries from the reference list ordered according to the first calculated matching scores.

Abstract: In a vehicle to anything environment, in order to allow the broadcasting of periodic messages, the emitter equipment regularly verifies whether time-frequency resources of a radio signal are used or not. When the emitter equipment detects an available time-frequency resource, it selects it and uses it to broadcast its messages. The duration necessary for the emitter equipment to listen to all the time-frequency resources is approximately one second. Such a listening duration represents a disadvantage for services requiring a short latency, such as services requiring the broadcasting of aperiodic messages. The solution allows an emitter equipment to select a time-frequency resource at any moment according to its needs without having to regularly verify whether or not time-frequency resources are used to broadcast data. Thus, the latency is greatly reduced.

Abstract: A system for storing a graph-oriented time database, including a set of containers associated with adjacent time windows, a container containing a sequence of successive modifications of the graph over a time window with which it is associated. At least some of the containers, called reference containers, also contain a snapshot of the graph within the tine widow associated with the reference container, called reference snapshot. At least some other containers, called delta containers, contain a difference image between two snapshots of the graph, respectively associated with the start and with the end of the time window associated with the delta container.

Abstract: A method for managing access by a managing entity to content available on at least a first server providing the content in the form of data segments over a data telecommunication network and a second server providing a streaming service separate from the data telecommunication network. The method includes, in the managing entity, the selection of a server out of the first server and the second server, and, when the second server is selected: a request for access to a content from the second server; the encoding of a stream of segments based on the content; the publication of information relating to the content suitable for making it possible to decode the stream of segments.

Abstract: A method and a device for personalizing generic multimedia content, an access method and a device for providing access to an item of personalized multimedia content, a method for requesting access to an item of generic multimedia content, a terminal implementing the same, and platforms for providing access to multimedia content. The method for personalizing an item of generic multimedia content is triggered by an action on the item of generic multimedia content by a terminal of a user and provides an item of personalized multimedia content on the basis of the generic multimedia content and a profile of the user, the profile of the user being determined prior to the action. Thus, the personalization of an item of generic multimedia content is carried out automatically as soon as a user performs an action on this content, possibly in a manner transparent to the user.

Abstract: The method concerns goods or services based on a blockchain information decentralised storage technology. Blockchain infrastructures have been enriched with smart contracts. The emergence of these smart contracts opens up new applications for blockchains, particularly in the exchange of services. However, the lack of confidentiality of solutions based on the use of smart contracts is an obstacle to their development. In order to solve this problem, the method is based on the introduction of an oracle capable of processing encrypted offers without having access to the decrypted content of these offers. An oracle is a third-party service run by several nodes, interfacing the blockchain network with the world. An oracle can feed external information back to a smart contract, or perform calculations on behalf of the smart contract in order to reduce the latter's calculation costs. Oracles are trusted entities.

Abstract: A method for managing an electronic device configured to communicate with at least one user terminal and with at least one server. The method is implemented by the server and includes: receiving, from the electronic device, a request to identify at least one user terminal for managing the electronic device; and transmitting, to the at least one identified user terminal, a notification request allowing a managing application on the at least one identified user terminal to be activated.

Abstract: Methods for authenticating and integrating user equipment into an information system, corresponding devices and computer programs. Integration of new user equipment into an operator's information system uses communication protocols providing the authentication of the user equipment and guaranteeing integrity and confidentiality of messages exchanged between the user equipment and a user equipment management server of the information system. The user equipment is provided, at the time of manufacture, with an authentication certificate supplied to the manufacturer by the operator managing the information system in which the equipment is to be integrated. This requires cumbersome and inflexible logistics to implement and limits the choice of users as to which user equipment they might wish to integrate.

Abstract: A method for detecting presence of a person using a communicating device connected to a wireless communication network, within a determined environment in which a radio-frequency tag configured to backscatter ambient signals is located at a known geographical position. The method includes: transmitting over the wireless network, by the communicating device, an ambient signal within the environment; backscattering, by a the tag, the ambient signal to form a backscattered signal, the backscattered signal including identification data of the tag; receiving the backscattered signal by a network apparatus connected to the wireless network and obtaining, from the backscattered signal, the identification data of the tag and a network identifier of the communicating device; and recording, in a database, an item of presence information of the communicating device within the environment, which includes the identification data, the network identifier and a date of receipt of the backscattered signal.

Abstract: A method for defending against an attempt of disconnection between two entities corresponding to a network access point and a client device. The method includes, after the establishment of an initial connection between the two entities, a set of steps implemented by one or each of the two entities: receiving a set of disconnection requests; evaluating at least one criterion) defined from a metric based on the set of requests or on at least one other disconnection request received after the receipt of the set of requests, so as to allow the detection of a malicious disconnection attempt. The method further includes, if at least one criterion is met for at least one of the two entities, executing, by at least one of the two entities, a process for protecting against the malicious disconnection attempt.