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公开(公告)号：US11842443B2
公开(公告)日：2023-12-12
申请号：US18172847
申请日：2023-02-22
Applicant: Adobe Inc. , Institut Mines Telecom
Inventor： Thibaud Lambert , Tamy Boubekeur , Anthony Salvi
Abstract: The disclosure describes one or more embodiments of systems, methods, and non-transitory computer-readable media that modify vertex positions of a 3D-object mesh to align the vertices with discontinuities indicated by a sharpness map for a displacement map. For example, the disclosed systems access a sharpness map that encodes discontinuities of a displacement map to preserve sharp features. During sharp tessellation, for a given vertex of the 3D-object mesh, the disclosed systems iterate over neighboring vertices to search for a nearest intersection between one of the incident edges of the vertex and neighboring vertices and a discontinuity line from the sharpness map. Then, the vertex is moved within a threshold distance of the nearest discontinuity line intersection along the incident edge. The disclosed systems similarly reposition other vertices of the 3D-object mesh to generate a modified 3D-object mesh that includes vertices that align with discontinuities present in a displacement map.
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92.发明公开公开(公告)号：US20230182342A1
公开(公告)日：2023-06-15
申请号：US17917138
申请日：2021-04-08
Applicant: UNIVERSITE DE LORRAINE , INSTITUT MINES TELECOM , UNIVERSITE LIBANAISE
Inventor： Nicolas BROSSE , Romain KAPEL , Rodolphe SONNIER , Roland EL HAGE , César SEGOVIA , Karina ANTOUN , Maria MOUSSA
CPC classification number: B27K3/0207 , B27K3/50 , B27K3/346 , B27K3/36 , B27K3/38
Abstract: A flame retardant treatment of a lignocellulosic material, which includes: optionally steam exploding the lignocellulosic material, impregnating the optionally steam-exploded lignocellulosic material, in or with an aqueous solution, from 0.5% to 10% of phytic acid and from 1% to 30% of urea, based on the total weight of the aqueous solution, optionally drying of the impregnated lignocellulosic material, until the impregnated lignocellulosic material has a moisture content from 5% to 20% by weight, cooking the impregnated and optionally dried lignocellulosic material, the resulting flame-retarded lignocellulosic material including a phosphorous content originating from the phytic acid from 0.1% to 10% by weight. Also, the resulting flame-retarded lignocellulosic material and the use thereof for manufacturing flame-retarded composite materials based on plant fibres, woven or nonwoven flame-retarded flexible materials based on plant fibres, and particularly textiles, flame-retarded materials based on wood fibres and/or on wood particles, and particularly flame-retarded wood panels.
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93.发明授权公开(公告)号：US11539438B2
公开(公告)日：2022-12-27
申请号：US17049023
申请日：2019-04-10
Applicant: INSTITUT MINES-TELECOM
Inventor： Ghaya Rekaya , Akram Abouseif , Yves Jaouen
IPC: H04B10/2581 , G02B6/14 , H04B10/2507 , H04B10/516 , H04J14/04
Abstract: The various embodiments provide an optical transmission system comprising an optical transmitter configured to transmit data over an optical fiber transmission channel made of a multi-core fiber, optical signals carrying the data propagate along the multi-core fiber according to two or more cores, the multi-core fiber being associated with fiber parameters and misalignment losses values, wherein the optical transmission system comprises a system administration device configured to determine a core dependent loss value depending on the fiber parameters and misalignment losses values.
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94.发明授权公开(公告)号：US11515986B2
公开(公告)日：2022-11-29
申请号：US17042453
申请日：2019-03-20
Inventor： Marie-Rita Hojeij , Charbel Abdel Nour , Joumana Farah , Catherine Douillard
Abstract: A mechanism is presented for attributing users to one or more of a plurality of sub-bands in a multiple access communications system, wherein in an initial assignment phase, a first user is selected for a sub band, for example on the basis of a user priority. Users having complementary channel gains to that of the first user are identified, and then a second sub-band user maximizing a performance metric reflecting the achieved throughput, and/or fairness across users, is selected to accompany the first user on that sub-band. The initial assignment phase may terminate once all users have been assigned to a sub-band once. After the first phase is complete, the first user for each sub-band may be the user whose achieved total throughput is furthest from a target throughput defined for that user, wherein each user is assigned to the remaining sub-band to which no first user is currently attributed offering the highest channel gain for that user. Mechanisms for determining user priority, making provisional and definitive power allocations, and performance metrics are proposed.
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公开(公告)号：US11501110B2
公开(公告)日：2022-11-15
申请号：US16621643
申请日：2018-06-08
Inventor： Jérémie Jakubowicz
Abstract: The present invention relates to a method for learning class descriptors for the detection and the automatic location of objects in a video, each object belonging to a class of objects from among a set of classes, the method using: a learning base, composed from reference videos and containing annotated frames each comprising one or more labels identifying each object detected in the frames, descriptors associated with these labels and learned previously by a preprocessing neural network from the annotated frames of the learning base, an architecture of neural networks defined by parameters centralized on a plurality of parameter servers, and a plurality of computation entities working in parallel, a method in which, for each class of objects, one of the neural networks of the architecture is trained by using as input data the descriptors and the labels to define class descriptors, each computation entity using, for the computation of the class descriptors, a version of the parameters of the parameter server on which the entity depends, and returning to this parameter server the parameters updated at the end of its computation, and the parameter servers exchanging with one another the parameters of each computation entity for the training of the neural networks for each class descriptor.
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Patent Agency Ranking
公开(公告)号：US20220253670A1
公开(公告)日：2022-08-11
申请号：US17620717
申请日：2020-06-24
Applicant: INSTITUT MINES-TELECOM
Inventor： Ghaya REKAYA , Aymen ASKRI
Abstract: A lattice prediction device for predicting a number of lattice points falling inside a bounded region in a given vector space is provided. The bounded region is defined by a radius value, a lattice point representing a digital signal in a lattice constructed over the vector space. The lattice is defined by a lattice generator matrix comprising components. The lattice prediction device comprises a computation unit configured to determine a predicted number of lattice points by applying a machine learning algorithm to input data derived from the radius value and the components of lattice generator matrix.
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公开(公告)号：US20220247605A1
公开(公告)日：2022-08-04
申请号：US17620715
申请日：2020-06-23
Applicant: INSTITUT MINES-TELECOM
Inventor： Ghaya REKAYA , Aymen ASKRI
Abstract: A decoder for decoding a signal received through a transmission channel represented by a channel matrix using a search sphere radius. The decoder comprises a radius determination device for determining a search sphere radius from a preliminary radius. The radius determination device is configured to: i. apply a machine learning algorithm to input data derived from the received signal, the channel matrix and a current radius, the current radius being initially set to the preliminary radius, which provides a current predicted number of lattice points associated with the current radius; ii. compare the current predicted number of lattice points to a given threshold; iii. update the current radius if the current predicted number of lattice points is strictly higher than the given threshold, the current radius being updated by applying a linear function to the current radius; Steps i to iii are iterated until a termination condition is satisfied, the termination condition being related to the current predicted number, the radius determination device being configured to set the search sphere radius to the current radius in response to the termination condition being satisfied.
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公开(公告)号：US20220247460A1
公开(公告)日：2022-08-04
申请号：US17620716
申请日：2020-06-23
Applicant: INSTITUT MINES-TELECOM
Inventor： Ghaya REKAYA , Aymen ASKRI
IPC: H04B7/0456 , G06N20/00
Abstract: A precoder for precoding a vector of information symbols is provided. The precoder includes a radius determination unit configured to determine a search sphere radius, the determination of the search sphere radius comprising applying a machine learning algorithm to input data dependent on the vector of information symbols and on a predefined precoding matrix; a sphere encoding unit configured to determine a perturbation vector from lattice points found inside a spherical region by applying a sphere search-based sequential algorithm, the spherical region having as a radius the search sphere radius, and a precoding unit configured to precode the vector of information symbols using the perturbation vector and a precoding matrix.
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99.发明授权公开(公告)号：US11323970B2
公开(公告)日：2022-05-03
申请号：US17042464
申请日：2019-03-20
Inventor： Marie-Rita Hojeij , Charbel Abdel Nour , Joumana Farah , Catherine Douillard
Abstract: A system and method for assigning users to a particular sub band in a given time slot in a NOMA system, where whichever pair of users corresponds to the smallest “candidate pair user throughput deviation value”, reflecting the aggregate of the respective difference between the average throughput across all users (K) and the known throughput of each of the two users under consideration (k1k2), and each user attributed to a sub-band other than the selected sub-band. User pairs for consideration may consider all possible pairs, or may be limited to candidate pairs satisfying together, or comprising one or both users who satisfy a criterion such as channel gain, distance to a target, throughput or a combination of some or all of these factors. The power allocated to each sub-band may be attributed by a waterfilling algorithm.
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公开(公告)号：US11218218B2
公开(公告)日：2022-01-04
申请号：US17050358
申请日：2019-04-10
Applicant: INSTITUT MINES-TELECOM
Inventor： Ghaya Rekaya , Akram Abouseif , Yves Jaouen
IPC: H04J14/04 , H04B10/2525 , H04B10/2581 , H04B10/50
Abstract: Embodiments provide an optical transmission system comprising an optical transmitter configured to transmit data over an optical fiber transmission channel comprising a multi-core fiber, the data being carried by one or more optical signals propagating along the multi-core fiber according to a plurality of cores, each core among the plurality of cores being associated with one or more core parameters, wherein the optical transmission system comprises a core selection device configured to select a set of transmit cores among the plurality of cores according to a transmit core selection criterion, the transmit core selection criterion being related to the one or more core parameters, the optical transmitter being configured to transmit the data over the set of transmit cores.
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