Patents Assigned to Inria Institut National de Recherche en Informatique et en
Automatique
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Patent number: 9170983Abstract: A digital audio synthesizer is provided that includes the following: an input memory, a computer, a combiner, and an adder. The combiner is set up to calculate an auxiliary digital data set by taking an active set of estimated digital data divided by a window function on each time window. The adder is set up to add the active set of estimated digital data multiplied by the window function having the preceding value from an accumulated total. The digital audio synthesizer also includes an extrapolator that is set up to calculate the draft digital data set for an active window from the auxiliary digital data set for the preceding window, and the auxiliary digital data set is selectively multiplied by the square of the window function.Type: GrantFiled: June 21, 2011Date of Patent: October 27, 2015Assignee: Inria Institut National de Recherche en Informatique et en AutomatiqueInventors: Joseph Di Martino, Laurent Pierron
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Patent number: 8890875Abstract: A method of obtaining simulated parameters ( pos(t), vit(t), acc(t), par(t)) able to characterize the movement of an articulated structure provided with sensors, characterized in that the method comprises the following steps: calculating, from estimated movement state parameters of the structure, estimated measurement data ( H(t), ?(t)), each estimated measurement data item corresponding to a measurement delivered by a sensor, difference between the measurements delivered by the sensors and the estimated measurement data that correspond to them, global mathematical processing of the observer type of the data issuing from the difference in order to obtain at least one estimated difference for an estimated movement state parameter, and adding the estimated difference for the estimated movement state parameter and the estimated movement state parameter that corresponds to it in order to form a simulated parameter.Type: GrantFiled: April 23, 2008Date of Patent: November 18, 2014Assignees: Commissariat a l'Energie Atomique, Inria Institut National de Recherche en Informatique et en AutomatiqueInventors: Fabien Jammes, Bruno Flament, Pierre-Brice Wieber
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Publication number: 20140336993Abstract: A multipurpose computing device includes a solver receiving a working matrix and an initial matrix corresponding to a system of equations and residual data; and an adapter receiving the initial matrix as well as a filtering matrix and calculates a working matrix corresponding to an equation system solved by the solver. The working matrix checks a stability condition with the initial matrix, comprising a comparison of two matrix products including the filtering matrix or the transpose thereof, and the initial matrix and the working matrix, respectively. The adapter renumbers the initial matrix and the filtering matrix in order to produce a modified matrix and a modified filtering matrix using an ordering rule that is a function of a dependency condition, and recursively calculates the working matrix representation with these matrices. The solver works recursively on the working matrix to provide a solution without inverting the initial matrix.Type: ApplicationFiled: September 15, 2011Publication date: November 13, 2014Applicants: INRIA INSTITUT NATIONAL DE RECHERCHE EN INFORMATIQUE ET EN AUTOMATIQUE, Universite Pierre et Marie Curie (Paris 6), CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (C.N.R.S)Inventors: Laura Grigori, Frédéric Nataf, Pawan Kumar
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Patent number: 8798161Abstract: An encoding device for a flow of digital images comprises: a working memory (42) for already decoded image blocks data, a pilot (40), mounted to analyze an incidental flow of data of digital images, and arranged to determine data to be decoded of a current block, said data to be decoded being of the complete data type or of the parameters-data type, to store the complete data in the working memory (42) as already decoded image blocks data, and to call a decoding unit (48) with the parameters-data, the decoding unit (48) reacting to the reception of parameters-data by: selecting some already decoded image blocks, forming an approximation base, which borders the current block according to a selected rule, calculating an approximation of the current block, based on a linear algebraic function of the approximation base data, and storing in the working memory (42), for the current block, already decoded image blocks data derived from this approximation.Type: GrantFiled: December 1, 2009Date of Patent: August 5, 2014Assignees: INRIA Institut National de Recherche en Informatique et en Automatique, Universite de Rennes 1, Centre National de la Recherche Scientifique (C.N.R.S)Inventors: Christine Guillemot, Jean-Jacques Fuchs, Laurent Guillo
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Patent number: 8755581Abstract: A device for processing of data including images of a portion of a body includes processing means capable of processing first data representative of elementary portions of an image obtained by magnetic resonance in a region of the body and second data representative of elementary portions of images obtained by ultrasounds in a portion of that region, by performing: i) generating first and second maps of the probability that the elementary portions belong to structures of interest of the portion of the region based at least on the intensities associated thereto and respectively defined by the first and second data; ii) estimating a conversion for shifting from one of the first and second maps to the other while maximizing for each of their elementary portion the joined probability that it belongs to a same structure of interest; and iii) resetting the structures of interest of one of the first and second maps relative to those of the other by the conversion.Type: GrantFiled: March 25, 2008Date of Patent: June 17, 2014Assignee: Inria Institut National de Recherche en Informatique et en AutomatiqueInventors: Pierrick Coupe, Christian Barillot, Xavier Morandi, Pierre Hellier
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Patent number: 8738146Abstract: A control device implantable in a human body—includes a control unit and at least one electrode, said control unit being connected to each electrode to control stimulation and/or measurement thereof. The control unit includes: a timing dock; a memory storing configuration data defined to enable configuration of each electrode correlated with identifiers; a memory storing program data describing a time profile correlated with identifiers; an executor activatable to send each electrode electric pulses corresponding to a predetermined program according to a predetermined electrode configuration, according to the clock; a sequencer arranged to receive an ordered plurality of pairs, each including an electrode configuration identifier and a program identifier, and selectively to activate the executor with the electrode and program configuration pairs denoted by the pairs of identifiers received as an input, according to the order thereof and the clock.Type: GrantFiled: April 15, 2011Date of Patent: May 27, 2014Assignees: Inria Institut National de Recherche en Informatique et en Automatique, Obelia, Centre National de la Recherche Scientifique (C.N.R.S)Inventors: David Guiraud, David Andreu, Guy Charvin, Jean-Louis Divoux
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Publication number: 20140098878Abstract: The invention concerns a method for encoding a video stream, an associated method for decoding a video stream, an associated encoder, an associated decoder and associated computer programs. The encoding method is directed to encoding a video stream comprising at least one video sequence, comprising, for the encoding of a square or rectangular block of a picture of a video sequence of the video stream, selecting a motion information predictor for said block from a list of candidate motion information predictors, and entropic encoding of an index representative of a position of the selected motion information predictor in said list.Type: ApplicationFiled: October 8, 2012Publication date: April 10, 2014Applicants: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (C.N.R.S), INRIA INSTITUT NATIONAL DE RECHERCHE EN INFORMATIQUE ET EN AUTOMATIQUEInventors: CHRISTINE GUILLEMOT, LAURENT GUILLO, THOMAS GUIONNET
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Publication number: 20140092968Abstract: The invention concerns a method for encoding a multi-view video stream comprising at least two video sequences, comprising a step of motion information prediction for a square or rectangular block of a current picture of a current view from a list of candidate motion information predictors, a motion information predictor including at least a motion vector, and a step of entropic encoding of an item of information representative of the position of a selected motion information predictor in the list.Type: ApplicationFiled: October 1, 2012Publication date: April 3, 2014Applicants: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (C.N. R.S), INRIA INSTITUT NATIONAL DE RECHERCHE EN INFORMATIQUE ET EN AUTOMATIQUEInventors: CHRISTINE GUILLEMOT, LAURENT GUILLO, THOMAS GUIONNET
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Patent number: 8687899Abstract: The present disclosure relates to an assistance device for image recognition that comprises a memory storing sets of image descriptors, respectively associated with an image area and including first vector data, second angle data, and third scale data. A first operator receives a designation of two descriptors and establishes a Boolean representing a check of a similarity criterion of the descriptor vectors from a comparison among first data. A second operator receives a designation of two descriptors and establishes a rotation angle parameter from the second data. A third operator receives a designation of two descriptors and establishes a scale factor parameter from the third data.Type: GrantFiled: June 12, 2009Date of Patent: April 1, 2014Assignee: Inria Institut National de Recherche en Informatique et en AutomatiqueInventors: Herve Jegou, Cordelia Schmidt, Matthijs Douze
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Patent number: 8688824Abstract: Message-based communication system monitor, comprising an inspector (16) capable of inspecting a message so as to determine whether it satisfies a specific pattern of a source, characterized in that it comprises an analyser (12) capable of inspecting a communication stream, so as to derive therefrom a structured representation of messages, in correspondence with a plurality of rules, and in that the inspector (16) is devised so as to: *apply a stored pattern to a structured representation of the inspected message, so as to establish a signature, and *compare the signature with reference data, so as to classify the inspected message in the case of correspondence.Type: GrantFiled: December 9, 2008Date of Patent: April 1, 2014Assignee: Inria Institut National de Recherche en Informatique et en AutomatiqueInventors: Humbert Jorge Abdelnur, Radu State, Olivier Festor
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Publication number: 20140046342Abstract: A system for aiding in the positioning of a medical instrument on the head of a patient, characterized in that it includes a means for predicting the location of a target intracranial area of the medical instrument, comprising a generic three-dimensional model of a head comprising a scalp and a generic target intracranial area, a three-dimensional working image of the scalp of the head of the patient, surface registration means suitable for establishing a registration transform from the scalp of the generic model toward the working image of the scalp of the head of the patient, a means for resampling the generic target intracranial area into a converted target area using with the registration transform, and a means for locating the target intracranial area of the patient from the locating of the converted target area, thereby enabling the positioning of the medical instrument on the head of the patient.Type: ApplicationFiled: January 25, 2012Publication date: February 13, 2014Applicants: INRIA INSTITUT NATIONAL DE RECHERCHE EN INFORMATIQUE ET EN AUTOMATIQUE, CENTRE HOSPITALIER UNIVERSITAIRE DE RENNES, UNIVERSITE DE RENNES 1Inventors: Pierre Hellier, Xavier Morandi, Benoît Combes, Charles Garraud, Sylvain Prima
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Publication number: 20140016842Abstract: A method is described for determining a value for quantifying a deviation from a mean value of a distribution of the divergence in severity between an initial instant and a later instant subsequent to the initial incident.Type: ApplicationFiled: January 20, 2012Publication date: January 16, 2014Applicant: INRIA Institut National de Recherche en informatique et en AutomatiqueInventors: Sylvain Mériadec Prigent, Xavier Descombes, Josiane Zerubia, Didier Zugaj
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Publication number: 20130345542Abstract: A method is described for determining a value for quantifying the deviation from a mean value of a distribution of a divergence in severity between an initial instant and a later instant subsequent to the initial instant.Type: ApplicationFiled: January 20, 2012Publication date: December 26, 2013Applicants: Inria Institut National de Recherche en Informatique et en Automatique, Galderma Research & DevelopmentInventors: Sylvain Mériadec Prigent, Xavier Descombes, Josiane Zerubia, Didier Zugaj
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Patent number: 8583941Abstract: A computer checking tool that can repeatedly process a plurality of data sets including data distributed according to a statistical rule may include an estimator that can establish, for a data set, a value characterizing the reproduction of a criterion concerning the data contained therein. The tool may also include a driver that calls the estimator with a plurality of data sets in order to determine a plurality of values, establish a new plurality of sets from the plurality of values, and repeat the estimator call with a new previously established plurality of sets until a condition is verified that involves an extremum of the plurality of values and/or number of repetitions. In addition, the tool may include a mixer that establishes a new set of data on the basis of an existing data set while maintaining the distribution according to the statistical rule.Type: GrantFiled: July 10, 2009Date of Patent: November 12, 2013Assignee: Inria Institut National de Recherche en Informatique et en AutomatiqueInventors: Frederic Cerou, Teddy Furon, Arnaud Guyader
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Patent number: 8565546Abstract: An image processing device comprises a store (110) for receiving image data (8) with a pixel identifier and at least one piece of associated intensity data and a pilot (100) which is provided to call a reduction unit (120) with pixels to be weighted and, for each pixel, in order to define a first neighborhood and a plurality of second neighborhoods with a neighborhood selection unit (130), in order to obtain a weighting value for the second neighborhood with a weighting unit (140) with the first neighborhood and a neighborhood among the plurality of second neighborhoods, in order to define each time a piece of weighted intensity data of a working pixel as the weighting value of the second neighborhood multiplied by the intensity data of the associated working pixel, and in order to define a piece of weighted intensity data of the pixel to be weighted by adding each of the pieces of weighted intensity data of a working pixel.Type: GrantFiled: April 16, 2009Date of Patent: October 22, 2013Assignees: Inria Institut National de Recherche en Informatique et en Automatique, Centre National de la Recherche Scientifique, Institut National de Recherche en Agronomie, Universite de RennesInventors: Pierrick Coupe, Christian Barillot, Pierre Hellier, Charles Kervrann
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Patent number: 8566369Abstract: The invention relates to a computer device for managing documents, in particular software projects developed in co-operation. A memory stores contents of documents having time references. An extractor separates the document contents into document elements. A signature generator returns signatures of element contents. An imprint generator associates for each document the time reference thereof and the signatures of its elements. A time clock module calculates the results of a time election function. A supervisor operates the generator on the document contents. For each signature value, it calls the time clock module with a list of imprint time references containing the signature value. A unified time reference is obtained for each signature value. Each signature value and its unified time reference are stored.Type: GrantFiled: October 25, 2007Date of Patent: October 22, 2013Assignee: Inria Institut National de Recherche en Informatique et en AutomatiqueInventors: Guillaume Rousseau, Maxime Biais
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Publication number: 20130226980Abstract: A calculation computer includes a calculator-solver receiving a working matrix representation corresponding to a system of equations, as well as residue data, and for providing a solution to the system of equations from residue data, an adapter receiving an initial matrix representation corresponding to a system of equations to be processed, as well as a filtering matrix representation, the working matrix representation forced to meet with the initial matrix representation, the adapter iteratively calculates blockwise an intermediate matrix from the initial matrix representation and from said numerical representation of a filtering matrix representation, the calculator-solver works on this intermediate matrix, blockwise, so as to provide a solution of the system of equations of the initial matrix representation, without completely inverting the latter,Type: ApplicationFiled: August 2, 2011Publication date: August 29, 2013Applicants: INRIA INSTITUT NATIONAL DE RECHERCHE EN INFORMATIQUE ET EN AUTOMATIQUE, UNIVERSITE PIERRE ET MARIE CURIE (PARIS 6), CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (C.N.R.S.)Inventors: Laura Grigori, Frederic Nataf
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Patent number: 8489370Abstract: Computer device for simulating a set of objects in interaction and corresponding method. A computer device for simulating a set of objects in interaction comprises: a memory (8) with a tree representation of the objects, each node being associated with dynamic, geometric and interaction data dependent on the data of the child nodes and local interaction data for certain nodes, a simulation controller (4), for actuating repeatedly: + a distributor (10) of interaction data, with a mechanism for interaction updating which scans the tree representation and updates an item of interaction data of a node as a function of the local interaction data of its child nodes, + a mechanism for updating the dynamic data (12) which scans the tree representation and operates as a function of the geometric interaction data concerned, + a mechanism for updating the geometric data (14) which scans the tree representation for nodes subject to interaction and operates as a function of the dynamic data updated.Type: GrantFiled: June 13, 2008Date of Patent: July 16, 2013Assignee: INRIA Institut National de Recherche en Informatique et en AutomatiqueInventors: Stéphane Redon, Romain Rossi
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Publication number: 20130169657Abstract: Device for aiding the production of a mesh, includes storing first numerical data defining a surface to be processed, a partitioner calculating three-dimensional work cells given initial points, each work cell associated with a point in space, a tiling tool actuating the partitioner with a first set of initial points, defined with respect to the surface, so as to obtain a first set of work cells, an evaluator calculating a cumulative quantity representing the sum of the moments of the points of the work cells with respect to their associated points, and an optimizer iteratively actuating the tiling tool and the evaluator with a set of initial points drawn from the previous sets, according to a rule calculated to minimize said cumulative quantity. The moments are determined by a chosen nonnative function, of order higher than or equal to two and/or according to an adaptation matrix representing an anisotropy field.Type: ApplicationFiled: July 6, 2011Publication date: July 4, 2013Applicant: INRIA INSTITUT NATIONAL DE RECHERCHE EN INFORMATIQUE ET EN AUTOMATIQUEInventors: Bruno Levy, Liu Yang
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Publication number: 20130135315Abstract: Method for shooting and editing a film comprising at least one image of a 3D computer-generated animation created by a cinematographic software according to mathematical model of elements that are part of the animation and according to a definition of situations and actions occurring for said elements as a function of time, said method being characterized by comprising the following: computing of alternative suggested viewpoints by the cinematographic software for an image of the 3D computer-generated animation corresponding to a particular time point according to said definition; and instructing for displaying on a display interface, all together, images corresponding to said computed alternative suggested viewpoints of the 3D computer-generated animation at that particular time point.Type: ApplicationFiled: November 29, 2012Publication date: May 30, 2013Applicants: INRIA INSTITUT NATIONAL DE RECHERCHE EN INFORMATIQUE ET EN AUTOMATIQUE, UNIVERSITE DE NANTES, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE {C.N.R.S}, Thinking Lens, LLC, Universita' degli Studi di UdineInventors: Inria Institut National de Recherche en Informatiq, Universite de Nantes, Universita' degli Studi di Udine, Thinking Lens, LLC, Centre National de la Recherche Scientifique {C.N