公开(公告)号：US11523147B2

公开(公告)日：2022-12-06

申请号：US16178879

申请日：2018-11-02

Applicant: ATEME

Inventor： Eric Toullec ,  Jerome Vieron

IPC: H04N7/18 ,  H04N21/2225 ,  H04N21/239 ,  H04N21/236 ,  H04N21/24 ,  H04N21/647 ,  H04N21/2343 ,  H04L65/80 ,  H04N21/222 ,  H04N21/2381 ,  H04N21/845 ,  H04L67/30 ,  H04L65/70 ,  H04L65/75 ,  H04L67/5682 ,  H04N21/434

Abstract: A method for processing a multimedia content previously digitally encoded into an audio-video stream and transmitted from a distribution platform for the purposes of on-demand transmission to a plurality of receiving terminals includes the following steps: applying a demultiplexing function to the audio-video stream, said function being arranged to generate at least one group of data streams; applying a transformation to each data stream; segmenting each data stream; storing the at least one group of segmented data streams in a memory; carrying out, only in response to a request issued by a receiving terminal among the plurality of receiving terminals, the following steps: selecting, on the basis of the request, at least one data stream of at least one group of stored data streams; and transmitting the at least one selected data stream to the receiving terminal that issued the request.

公开(公告)号：US20220345715A1

公开(公告)日：2022-10-27

申请号：US17642578

申请日：2020-09-09

Applicant: ATEME

Inventor： Thomas Guionnet ,  Josselin Cozanet

IPC: H04N19/137 ,  H04N19/105 ,  H04N19/52 ,  H04N19/176 ,  G06N3/08

Abstract: A method for encoding a first image within a first set of images, in which the first image is cut into blocks, each block being encoded according to one among a plurality of coding modes, is proposed, which comprises, for a current block of the first image, the determination, on the basis of at least one second image distinct from the first image and previously encoded according to an encoding sequence of the images of the first set of images, of a prediction of a feature of the current block in one or more third images from the first set of images distinct from the first image and not yet encoded according to the encoding sequence, and the use of the prediction to encode the current block while minimizing a flow-distortion criterion.

公开(公告)号：US11483590B2

公开(公告)日：2022-10-25

申请号：US17307339

申请日：2021-05-04

Applicant: ATEME

Inventor： Thomas Guionnet ,  Sébastien Herbreteau

IPC: H04N19/86 ,  H04N19/182 ,  G06T5/00 ,  G06T5/50

Abstract: A method of method of processing an image includes: determining estimates of parameters of an auto-regressive, AR, parametric model of noise contained in the image, according to which a current noise pixel is computed as a combination of a linear combination of P previous noise pixels in a causal neighborhood of the current noise pixel weighted by respective AR model linear combination parameters (φ1, . . . , φP) with a generated noise sample corresponding to an additive Gaussian noise of AR model variance parameter (σ), generating a noise template of noise pixels based on the estimated AR model parameters, wherein the noise template is of a predetermined pixel size smaller than the pixel size of the image, determining an estimate (σP) of a variance of the noise template, and based on a comparison of the estimated variance (σP) with a predetermined threshold (Tσ), correcting the AR model variance parameter (σ).

公开(公告)号：US20220191586A1

公开(公告)日：2022-06-16

申请号：US17440337

申请日：2020-03-17

Applicant: ATEME ,  INSTITUT MINES TELECOM

Inventor： Eric TOULLEC ,  Lucas GREGORY ,  Jean LE FEUVRE

IPC: H04N21/44 ,  H04N21/43 ,  H04N21/2343 ,  H04N21/84 ,  H04N21/845

Abstract: A method for managing multimedia contents is proposed, which method comprises: obtaining a first set of multimedia-content description metadata describing a first multimedia content delivered in dynamic mode; on reading, from the first set of metadata, a splice indicator indicating a splice to a second set of multimedia-content description metadata, reading, from the first set of metadata, an address storage indicator; and storing, in a memory, an address of the first set of metadata.

公开(公告)号：US11166019B2

公开(公告)日：2021-11-02

申请号：US16507606

申请日：2019-07-10

Applicant: ATEME

Inventor： Elie Mora

IPC: H04N19/117 ,  H04N19/139 ,  H04N19/154 ,  H04N19/172 ,  H04N19/196 ,  H04N19/80 ,  G06T5/00 ,  G06T5/50

Abstract: The disclosure relates to a method for processing the noise of a stream comprising a series of images, comprising spatial filtering of a current image In in order to obtain a spatially filtered image Sn; determining a motion vector for each block B of pixels of the image Sn, from a single image Sn-1; calculating a confidence index αn[B] for each block B of image In, from the motion vector determined for B; constructing a temporal filter from the calculated confidence indices αn[B] and applying the temporal filter to the current image In in order to obtain a temporally filtered image Tn; spatial filtering of the current image In in order to obtain a spatially filtered image Dn where Dn can be equal to Sn, and obtaining a temporally and spatially filtered image Rn by applying a function combining image Tn and image Dn.

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：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：US12034936B2

公开(公告)日：2024-07-09

申请号：US18098534

申请日：2023-01-18

Applicant: ATEME

Inventor： Abdelmajid Moussaoui ,  Thomas Guionnet ,  Sassan Pejhan

IPC: H04N19/156 ,  H04N19/154 ,  H04N21/24

CPC classification number: H04N19/156 ,  H04N19/154 ,  H04N21/2402

Abstract: A method for managing computational resources allocated for encoding of one or more multimedia content streams for distribution in dynamic mode to viewing devices through a distribution network is proposed, which comprises, by a processing node of the distribution network: obtain, for a multimedia content stream corresponding to a channel distributed to the viewing devices, a value of a computational resource allocation criterion, wherein the computational resource allocation criterion comprises an audience measurement for the corresponding channel; and determine, based on the computational resource allocation criterion, an allocation of computational resources of a computing platform configured for encoding the multimedia content stream.

公开(公告)号：US11948335B2

公开(公告)日：2024-04-02

申请号：US17307419

申请日：2021-05-04

Applicant: ATEME

Inventor： Thomas Guionnet ,  Sébastien Herbreteau

IPC: H04N19/119 ,  G06T5/00 ,  G06T9/00 ,  H04N19/142 ,  H04N19/172 ,  H04N19/98

CPC classification number: G06T9/00 ,  G06T5/009 ,  H04N19/119 ,  H04N19/142 ,  H04N19/172 ,  H04N19/98 ,  G06T2207/20204 ,  G06T2207/20208

Abstract: A method of method of processing an image of a video sequence including a plurality of images, wherein the video sequence is divided into a sequence of consecutive subsets each including one or more consecutive images of the video sequence is provides, which includes: determining, among the consecutive subsets, a current subset that includes the image, upon determining that the image is a first image of the current subset to be processed, determining an analysis window corresponding to the current subset, wherein the analysis window includes a plurality of consecutive images of the video sequence, and includes at least one image of the current subset, and generating processing results for the image by performing a processing on the images of the analysis window.

公开(公告)号：US20240031629A1

公开(公告)日：2024-01-25

申请号：US18224742

申请日：2023-07-21

Applicant: ATEME

Inventor： Sassan Pejhan

IPC: H04N21/24 ,  H04N21/258 ,  H04N21/2343

CPC classification number: H04N21/24 ,  H04N21/25866 ,  H04N21/2343

Abstract: A method for managing the encoding of a multimedia content stream distributed in dynamic mode to viewing devices according to a set of profiles comprising a plurality of multimedia data distribution profiles usable by the viewing devices for reception of the multimedia content stream is proposed. Usage statistics data for at least one of the multimedia data distribution profiles is obtained, the usage statistics data representing usage, by the viewing devices, of the multimedia data distribution profile for receiving the multimedia content stream. Based on the usage statistics data, the set of profiles are updated by excluding the multimedia data distribution profile from the set of profiles. Based on the updated set of profiles, a configuration of an encoder used for encoding the multimedia content stream distributed to the viewing device is determined. The encoding is updated according to the determined encoder configuration.