公开(公告)号：US11138703B2

公开(公告)日：2021-10-05

申请号：US16958935

申请日：2018-12-21

Applicant: ATEME

Inventor： Thomas Guionnet

IPC: G06T5/00 ,  G06T5/50

Abstract: Disclosed is a method for processing a video stream including a set of images liable to contain a transition effect, the method including the following steps: detecting a fade-type transition effect within the set of images of the video stream and, where appropriate, calculating minimum and maximum brightnesses LMIN and LMAX for each image of the set of images containing the fade; estimating minimum and maximum brightnesses EMIN and EMAX for all of the images not containing the detected transition effect; determining minimum and maximum brightnesses SMIN and SMAX for a standard dynamic range; calculating minimum and maximum brightnesses TMIN and TMAX depending on the minimum and maximum brightnesses LMIN, LMAX, EMIN, EMAX, SMIN and SMAX calculated and determined beforehand; transmitting the calculated minimum and maximum brightnesses TMIN and TMAX with a view to dynamic range compression.

公开(公告)号：US20200296356A1

公开(公告)日：2020-09-17

申请号：US16815567

申请日：2020-03-11

Applicant: ATEME

Inventor： Elie Mora ,  Abdoli Mohsen ,  Thomas Guionnet

IPC: H04N19/103 ,  G06N7/00 ,  G06T7/11 ,  G06T7/90 ,  G06F17/16

Abstract: A method of processing an image divided into a plurality of pixel blocks which are processed according to a processing sequence is provided, which comprises, for a current pixel block: determining an application area comprising a set of pixels in blocks preceding the current block in the processing sequence; performing a gradient analysis on at least one pixel of the application area; selecting at least two intra prediction video coding modes among a plurality of intra prediction video coding modes usable for processing the current pixel block, wherein at least one of the selected intra prediction video coding modes is selected based on the gradient analysis; determining a plurality of predictors of the current pixel block based on the at least two selected intra prediction video coding modes; and generating a predictor of the current pixel block based on the determined plurality of predictors.

公开(公告)号：US20200242028A1

公开(公告)日：2020-07-30

申请号：US16774151

申请日：2020-01-28

Applicant: ATEME

Inventor： Jean-Michel Capitan

IPC: G06F12/06 ,  G06F13/16 ,  G06F13/42

Abstract: A data communication method is proposed which comprises: configuring a first application interface coupled operationally to a data storage management interface, for defining a correspondence between an application data message and a memory addressing zone managed by the data storage management interface; generating a data storage command on the basis of the memory addressing zone and the application data message; and issuing, by the first application interface, the data storage command message to the data storage management interface for sending the application data message to a second application interface, through the data storage management interface.

公开(公告)号：US10706507B2

公开(公告)日：2020-07-07

申请号：US15850547

申请日：2017-12-21

Applicant: ATEME

Inventor： Elie Gabriel Mora ,  Pierre Larbier

IPC: G06K9/00 ,  G06T5/00 ,  G06T7/136 ,  G06T7/11

Abstract: Disclosed is a method for processing noise in a digital image having multiple image portions, including: (a) Predefining: criteria of interest for denoising selected details of any image portion of the digital image; a plurality of possible processing procedures to be applied to an image portion in order to denoise the selected details, each processing procedure having an efficiency related to an associated complexity level, the possible processing procedures being ordered by increasing complexity level; (b) For each portion of the image: analyzing the image portion to quantify the presence of one or more of the selected details in the image portion, and calculating an overall interest of the image portion as a function of respective quantifications of the presences of the selected details; comparing the overall interest at the complexity levels, in order to launch the processing procedure having the complexity level corresponding to the calculated overall interest.

公开(公告)号：US12244843B2

公开(公告)日：2025-03-04

申请号：US17704219

申请日：2022-03-25

Applicant: ATEME

Inventor： Thibaud Biatek ,  Mohsen Abdoli ,  Christophe Gisquet

IPC: H04N19/105 ,  H04N19/109 ,  H04N19/119 ,  H04N19/139 ,  H04N19/159 ,  H04N19/167 ,  H04N19/176 ,  H04N19/46 ,  H04N19/52

Abstract: A method for processing a current image of a set of images is proposed, which comprises, at a video processing device comprising a processor: determining a target pixel area in the current image; obtaining a hidden image, comprising a source pixel area, of the set of images; dividing the current image into blocks for an encoding of the blocks according to an encoding sequence; and for a block of the target pixel area: determining a motion vector pointing to a block of the source pixel area in the hidden image corresponding to the block of the target pixel area, and based on the motion vector, encoding the block of the target pixel area according to a temporal correlation prediction mode pursuant to which no pixel residual representing a difference between the block of the target pixel area and the corresponding block of the source pixel area is generated.

公开(公告)号：US20240137596A1

公开(公告)日：2024-04-25

申请号：US18490001

申请日：2023-10-18

Applicant: ATEME

Inventor： Thibaud BIATEK ,  Christophe BURDINAT

IPC: H04N21/2668 ,  H04N21/239 ,  H04N21/258

CPC classification number: H04N21/2668 ,  H04N21/2393 ,  H04N21/25808

Abstract: A method for delivering multimedia data to a user device of a multimedia data delivery system is proposed, which includes, at a server device of the multimedia data delivery system, receiving, from the user device, a query message requesting service list data. The query message includes a parameter for querying custom service list data in relation to a user of the user device, and upon receiving the query message, generating a response message for transmission to the user device which includes a list of multimedia services customized for the user based on the parameter.

公开(公告)号：US11756233B2

公开(公告)日：2023-09-12

申请号：US17947756

申请日：2022-09-19

Applicant: ATEME

Inventor： Elie Mora ,  Anthony Nasrallah

IPC: G06K9/36 ,  G06K9/46 ,  G06T9/00 ,  H04N19/11 ,  H04N19/119 ,  H04N19/159 ,  H04N19/176 ,  H04N19/14 ,  H04N19/593 ,  H04N19/174 ,  H04N19/136

CPC classification number: G06T9/00 ,  H04N19/11 ,  H04N19/119 ,  H04N19/14 ,  H04N19/159 ,  H04N19/174 ,  H04N19/176 ,  H04N19/593 ,  H04N19/136

Abstract: A method of processing an image divided into a plurality of pixel blocks which are processed according to a processing sequence is provided, which comprises, for a current pixel block: determining an application area consisting of a set of pixels in blocks preceding the current block in the processing sequence, for each pixel of the application area, computing a gradient representing a directional change of an intensity at the pixel, and selecting, based on at least one of the computed gradients, an intra prediction video coding mode among a plurality of intra prediction video coding modes usable for encoding and/or decoding the current block.

公开(公告)号：US20220191584A1

公开(公告)日：2022-06-16

申请号：US17440686

申请日：2020-03-17

Applicant: ATEME ,  INSTITUT MINES TELECOM

Inventor： Eric TOULLEC ,  Lucas GREGORY ,  Jean LE FEUVRE

IPC: H04N21/43 ,  H04N21/2343 ,  H04N21/44 ,  H04N21/845

Abstract: Disclosed is a method for managing multimedia content, involving: obtaining a first set of content description metadata describing a first multimedia content broadcast in dynamic mode; and upon reading, in the first set of metadata, data redirecting to a section of a second set of content description metadata, reading, in the section of the second set of metadata, data relating to a time synchronization for accessing a second multimedia content broadcast in dynamic mode.

公开(公告)号：US11350104B2

公开(公告)日：2022-05-31

申请号：US16913329

申请日：2020-06-26

Applicant: ATEME

Inventor： Anne-Lyse Lavaud

IPC: H04N19/142 ,  H04N19/115 ,  H04N19/159

Abstract: Disclosed is a method, implemented by computer, for processing a video sequence including a set of images, which method includes: obtaining information indicating at least one image in the set of images to be encoded using a spatial correlation-based predictive coding mode, determining consecutive subsets of images in the set of images, and encoding the video sequence on the basis of the determined consecutive subsets of images, wherein the respective sizes of at least some of the subsets of images are dependent on the at least one image to be encoded using the spatial correlation-based predictive coding mode.

公开(公告)号：US20220141460A1

公开(公告)日：2022-05-05

申请号：US17517878

申请日：2021-11-03

Applicant: ATEME

Inventor： Anthony Nasrallah ,  Thomas Guionnet ,  Mohsen Abdoli ,  Marco Cagnazzo ,  Attilio Fiandrotti

IPC: H04N19/117 ,  H04N19/105 ,  H04N19/139 ,  H04N19/176 ,  G06T9/00 ,  G06N3/08

Abstract: A method of processing a first image in a first plurality of images, wherein the first image is divided into a plurality of pixel blocks, is proposed, which comprises, for a current block of the first image: selecting, in a set of a plurality of predefined interpolation filters, an interpolation filter based on a prediction of an interpolation filter determined by a supervised learning algorithm to which data related to the current block is input; and using the selected interpolation filter for calculating fractional pixel values in a second image of the plurality of images for a temporal prediction of pixels of the current block based on a reference block correlated to the current block in the second image, wherein the second image is distinct from the first image and was previously encoded according to an image encoding sequence for encoding the images of the plurality of images.