公开(公告)号：US20250061553A1

公开(公告)日：2025-02-20

申请号：US18720185

申请日：2021-12-15

Applicant: FONDATION B-COM

Inventor： Olivier WEPPE ,  Benoît LE LUDEC ,  Foteini Tania POULI

IPC: G06T5/90 ,  G06T3/40

Abstract: An electronic device for converting an input image having a first dynamic range into an output image having a second dynamic range comprises a computing unit and a converting unit, wherein: —the computing unit comprises a computing input physical interface and a computing output physical interface, —the converting unit comprises a converting input physical interface, a parameter input physical interface and a converting output physical interface, —the computing unit is configured to receive data representative of a first image via the computing input physical interface, —the converting unit is configured to receive data representative of a second image via the converting input physical interface, —the computing unit is configured to compute at least one statistical parameter characteristic of the first image, —the computing unit is configured to transmit the at least one statistical parameter characteristic of the first image via the computing output physical interface, —the converting unit is configured to receive entry data via the parameter input physical interface, —the converting unit is configured to convert the second image into at least one part of the output image based on the entry data.

公开(公告)号：US12113961B2

公开(公告)日：2024-10-08

申请号：US17622094

申请日：2020-06-24

Applicant: FONDATION B-COM

Inventor： Félix Henry ,  Gordon Clare

IPC: H04N19/105 ,  H04N19/176 ,  H04N19/186 ,  H04N19/46

CPC classification number: H04N19/105 ,  H04N19/176 ,  H04N19/186 ,  H04N19/46

Abstract: Proposed is a method for encoding an image of a video sequence, the image including at least two components, including a component representative of the luminance and a component representative of the chrominance, each component being partitioned into blocks, wherein the method involves encoding at least one block of the chrominance component using a BDPCM mode.

公开(公告)号：US20240267542A1

公开(公告)日：2024-08-08

申请号：US18570513

申请日：2022-06-09

Applicant: FONDATION B-COM

Inventor： Félix HENRY ,  Gordon CLARE

IPC: H04N19/189 ,  H04N19/90

CPC classification number: H04N19/189 ,  H04N19/90

Abstract: A part of a data stream includes a plurality of data units respectively associated with a plurality of images and together presenting different images of the plurality of images. The data stream part further includes differential encoding data differentially encoding an artificial neural decoding network relatively to a reference artificial neural decoding network. A method for decoding this data stream part includes the following steps: determining the artificial neural decoding network by decoding the differential coding data; and decoding at least one data unit of the plurality of data units by the determined artificial neural decoding network. Another decoding method, decoding devices, a computer program and associated data streams are also described.

公开(公告)号：US20240187327A1

公开(公告)日：2024-06-06

申请号：US18556452

申请日：2022-04-14

Applicant: FONDATION B-COM

Inventor： Michel TREFCON ,  Philippe BERTIN

IPC: H04L43/103 ,  H04L43/0817

CPC classification number: H04L43/103 ,  H04L43/0817

Abstract: A management module (NRF), management method, and an associated computer network and computer program configured to manage at least one functional process (NF1; NF2; NF3; NF4) of a computer network (CN) are designed to check the arrival of a heartbeat message from the functional process within a time window of a duration stored by the management module (NRF). The management module (NRF) is designed to determine the duration.

公开(公告)号：US11985018B2

公开(公告)日：2024-05-14

申请号：US17797902

申请日：2021-02-02

Applicant: FONDATION B-COM

Inventor： Luc Le Magoarou ,  Stéphane Paquelet

IPC: H04L27/26 ,  H04L25/02

CPC classification number: H04L27/2613 ,  H04L25/0226

Abstract: A pilot sequence includes pilot vectors to be transmitted in a communication channel. A method of determining the pilot sequence comprises determining an orthogonal basis of a real vector space that is an image of a matrix having, respectively as columns, the partial derivatives of the model vector with respect to the different real parameters; and constructing the pilot vectors using the determined orthogonal basis, by grouping the orthogonal vectors of the orthogonal basis in at least one pair and by producing, for each of the at least one pair comprising a first vector and a second vector, a pilot vector by summation of the first vector and a product of the second vector by an imaginary number.

公开(公告)号：US20240045376A1

公开(公告)日：2024-02-08

申请号：US18259059

申请日：2021-12-22

Applicant: FONDATION B-COM

Inventor： Anas EL RHAMMAD

IPC: G03H1/08

CPC classification number: G03H1/0808

Abstract: A method for transmitting data representing a digital hologram includes: —determining raw values of a group of parameters, the raw values being determined so that a first scalar product between the hologram and a first decomposition wavelet characterized by the raw values is the maximum; —computing, for each parameter of the group, a refinement value as a function of a derivation scalar product determined on the basis of a scalar product between the hologram and a derivative of the first wavelet relative to the parameter; —determining a coefficient on the basis of a second scalar product between the hologram and a second decomposition wavelet characterized by the refinement values; and —transmitting: i) data representing the refinement values; and ii) of the coefficient.

公开(公告)号：US20230057413A1

公开(公告)日：2023-02-23

申请号：US17797902

申请日：2021-02-02

Applicant: FONDATION B-COM

Inventor： Luc LE MAGOAROU ,  Stéphane PAQUELET

IPC: H04L27/26 ,  H04L25/02

Abstract: A method of determining a pilot sequence comprising a plurality of pilot vectors to be transmitted in a communication channel modeled by a model vector including a complex-valued function variable as a function of real parameters and descriptive of a transmission from a transmission to a reception antenna through the communication channel, includes: determining an orthogonal basis of a real vector space that is the image of a matrix having respectively as columns the partial derivatives of the model vector with respect to the different real parameters; constructing the pilot vectors using the determined orthogonal basis, by grouping the orthogonal vectors of the orthogonal base in pairs and by producing, for each pair including first and second vectors, a pilot vector by summing the first vector and the product of the second vector by an imaginary number. A pilot sequence determining device and program are also disclosed.

公开(公告)号：US20220417541A1

公开(公告)日：2022-12-29

申请号：US17848665

申请日：2022-06-24

Applicant: FONDATION B-COM

Inventor： Charles BONNINEAU ,  Wassim HAMIDOUCHE ,  Jean-Yves AUBIE

IPC: H04N19/30 ,  H04N19/132 ,  H04N19/13 ,  H04N19/42 ,  H04N19/186

Abstract: A method for decoding an image based on a base layer and enhancement information includes decoding the base layer in order to obtain at least one base component, oversampling the at least one base component in order to obtain at least one oversampled component, decoding the enhancement information by a part at least of artificial neural network in order to obtain enhancement values, and reconstructing the image based on the at least one oversampled component and the enhancement values. An associated encoding method, electronic decoding device, and electronic encoding device are provided.

公开(公告)号：US20220113673A1

公开(公告)日：2022-04-14

申请号：US17427041

申请日：2020-01-29

Applicant: FONDATION B-COM

Inventor： Anas EL RHAMMAD ,  Antonin GILLES ,  Patrick GIOIA ,  Marco CAGNAZZO

IPC: G03H1/08

Abstract: A method for transmitting data representative of a digital hologram represented by a set of atoms each having a diffraction spectrum in a plane of observation includes the following steps: determining an order for sets each including at least one atom, as a function of a distance, in the plane of observation, between a position of observation and a position associated to the involved set; and transmitting, for a part at least of the sets and in the determined order, descriptive data of the at least one atom included in the involved set. An associated transmission device is also described.

公开(公告)号：US20210392320A1

公开(公告)日：2021-12-16

申请号：US17291813

申请日：2019-11-06

Applicant: FONDATION B-COM

Inventor： Félix Henry ,  Gordon Clare ,  Pierrick Philippe

IPC: H04N19/105 ,  H04N19/176 ,  H04N19/119 ,  H04N19/167 ,  H04N19/593 ,  H04N19/159

Abstract: A method for encoding or decoding at least one image, an image being split into blocks of elements. The method includes, for at least one block: splitting the block into at least two areas; and processing at least one of the areas. The processing includes scanning the elements of the area according to a predetermined scanning order, and for at least one scanned element, called a current element: selecting at least one predictor element previously encoded or decoded according to a prediction function; and predicting the current element: from the at least one predictor element, if the at least one predictor element belongs to the area; or from at least one replacement value, otherwise.