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：US20230379506A1

公开(公告)日：2023-11-23

申请号：US18248023

申请日：2021-10-01

Applicant: FONDATION B-COM

Inventor： Félix HENRY ,  Gordon CLARE

IPC: H04N19/91 ,  H04N19/436

CPC classification number: H04N19/91 ,  H04N19/436

Abstract: A method for decoding a bit sequence includes applying, at the input of an artificial neural network, previously decoded values; as a result of the previously decoded values being applied, producing a context index at the output of the artificial neural network; and obtaining a new decoded value by applying a portion of the bit sequence to an entropic decoder parameterized in the context identified by the produced context index. An electronic decoding device and an associated computer program are also provided.

公开(公告)号：US20230283836A1

公开(公告)日：2023-09-07

申请号：US18016598

申请日：2021-07-13

Applicant: FONDATION B-COM

Inventor： Félix HENRY ,  Gordon CLARE

IPC: H04N21/435 ,  H04N21/442

CPC classification number: H04N21/435 ,  H04N21/44209

Abstract: A data stream includes an indicator (IND) and data (Fnn) representative of a video or audio content. A method for decoding this data stream includes: decoding (E60) the indicator (IND) to determine whether an artificial neural network to be used to decode the representative data (Fnn) is encoded into the data stream or forms part of a predetermined set of artificial neural networks, and decoding (D70) the representative data (Fnn) by the artificial neural network. If it is determined, by decoding the indicator (Fnn) that the artificial neural network forms part of the aforementioned predetermined set, the method includes decoding (E62) an identifier (Inn) of the neural network. Associated decoding devices and associated data streams are also described.

公开(公告)号：US20230370087A1

公开(公告)日：2023-11-16

申请号：US18029545

申请日：2021-09-28

Applicant: FONDATION B-COM

Inventor： Félix HENRY ,  Gordon CLARE

IPC: H03M7/30

CPC classification number: H03M7/6005 ,  H03M7/3079 ,  H03M7/3066

Abstract: A method for decoding a data stream, including a plurality of identifiers and a bit sequence, into a sequence of data of respective predetermined types includes the following operations for obtaining each item of data of the sequence: determining a context on the basis of an identifier, from among the plurality of identifiers, with the type of the relevant item of data; and decoding one portion of the bit sequence by an entropic decoder which receives the bit sequence as an input and is parameterized in the determined context. An electronic decoding device and an associated computer program are also provided.

公开(公告)号：US20230283790A1

公开(公告)日：2023-09-07

申请号：US18016568

申请日：2021-07-13

Applicant: FONDATION B-COM

Inventor： Félix HENRY ,  Gordon CLARE

IPC: H04N19/436 ,  H04N19/90

CPC classification number: H04N19/436 ,  H04N19/90

Abstract: In a method for decoding a data stream by way of an electronic device (10) including a processor (14), and a parallelized processing unit (16) designed to perform a plurality of operations of the same type in parallel at a given time, the data stream includes a first dataset (Fet) and a second dataset (Fnn) representative of audio or video content. The decoding method includes the processor (14) processing data from the first dataset (Fet), obtaining the audio or video content by processing (E70) data from the second dataset (Fnn) using a process depending at least partially on the data from the first set (Fet) and using an artificial neural network (18) implemented by the parallelized processing unit (16).

公开(公告)号：US20220368889A1

公开(公告)日：2022-11-17

申请号：US17622094

申请日：2020-06-24

Applicant: FONDATION B-COM

Inventor： Félix HENRY ,  Gordon CLARE

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