公开(公告)号：US11240521B2

公开(公告)日：2022-02-01

申请号：US17307364

申请日：2021-05-04

Applicant: ATEME

Inventor： Thomas Guionnet ,  Sébastien Herbreteau

IPC: G06T5/00 ,  H04N19/46 ,  H04N5/262 ,  H04N19/36

Abstract: A method of method of processing an image includes: determining estimates of parameters of an auto-regressive, parametric model of noise, according to which a current noise pixel is computed combining linear combination of previous noise pixels in a causal neighborhood of the current noise pixel weighted by respective model linear combination parameters with a generated noise sample corresponding to an additive Gaussian noise of model variance parameter; performing a convergence check loop, each iteration including: generating a noise template of noise pixels based on the estimated model parameters, the noise template having predetermined pixel size smaller than the image pixel size; estimating a noise template variance; if the estimated variance is below a first predetermined threshold or above a second predetermined threshold, proportionally decreasing the model linear combination parameters with a predetermined correcting factor, and performing another convergence check loop; otherwise exiting the convergence check loop.

公开(公告)号：US20220014806A1

公开(公告)日：2022-01-13

申请号：US17370417

申请日：2021-07-08

Applicant: ATEME

Inventor： Kaleb Fretwell ,  Mark Morgant ,  Gautier Vandomme ,  Sassan Pejhan

IPC: H04N21/2365 ,  H04N21/2662 ,  H04N19/177 ,  H04N21/2389 ,  H04N21/24

Abstract: A method for monitoring video streams is proposed, which comprises: generating, by one or more source encoders, encoded multimedia content signals based on the encoding of monitored video streams respectively corresponding to one or more monitoring points along a workflow chain of a video broadcasting headend configured for one or more video channels broadcasted by the headend, and transmitting the encoded multimedia content signals to a remote monitoring device through a content distribution network.

公开(公告)号：US11218696B2

公开(公告)日：2022-01-04

申请号：US16797300

申请日：2020-02-21

Applicant: ATEME

Inventor： Katarina Dorovic ,  Elie Mora ,  Mathieu Monnier

IPC: H04N19/117 ,  H04N19/139 ,  H04N19/176 ,  H04N19/523 ,  H04N19/573

Abstract: A method of encoding a first image in a plurality of images of input video data, wherein the first image is divided into a plurality of pixel blocks comprises, for a current block of the first image: determining a motion speed for the current block with respect to a reference block correlated to the current block in a second image of the plurality of images, 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; determining an interpolation filter based on the motion speed; and using the interpolation filter for calculating fractional pixel values in the second image for a temporal prediction of pixels of the current block based on the reference block of the second image.

公开(公告)号：US11194715B2

公开(公告)日：2021-12-07

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：US20200275097A1

公开(公告)日：2020-08-27

申请号：US16797300

申请日：2020-02-21

Applicant: ATEME

Inventor： Katarina Dorovic ,  Elie Mora ,  Mathieu Monnier

IPC: H04N19/117 ,  H04N19/573 ,  H04N19/176 ,  H04N19/139 ,  H04N19/523

Abstract: A method of encoding a first image in a plurality of images of input video data, wherein the first image is divided into a plurality of pixel blocks is provided, which comprises, for a current block of the first image: determining a motion speed for the current block with respect to a reference block correlated to the current block in a second image of the plurality of images, 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; determining an interpolation filter based on the motion speed; and using the interpolation filter for calculating fractional pixel values in the second image for a temporal prediction of pixels of the current block based on the reference block of the second image.

公开(公告)号：US20200228810A1

公开(公告)日：2020-07-16

申请号：US15759039

申请日：2016-09-15

Applicant: ATEME

Inventor： Olivier BATARD

IPC: H04N19/433 ,  H04N19/176 ,  H04N19/533

Abstract: To encode an image divided into blocks of a set of images, each block being encoded according to one of a plurality of encoding modes including at least one temporal correlation prediction encoding mode utilizing a plurality of images, a motion estimation vector search area is defined in a second image of the set of images, distinct from the first image and previously encoded according to a predefined sequence of encoding images of the set of images, a portion at least of the search area having substantially the shape of an ovoid, the data from the search area is stored in a cache memory, a motion estimation vector of the current block is determined by a search in the search area in the cache memory, and the motion estimation vector is used to decide the encoding of the current block according to the one of the plurality of encoding modes.

公开(公告)号：US20180182072A1

公开(公告)日：2018-06-28

申请号：US15850547

申请日：2017-12-21

Applicant: ATEME

Inventor： Elie Gabriel MORA ,  Pierre LARBIER

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

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：US20150163490A1

公开(公告)日：2015-06-11

申请号：US14401985

申请日：2013-05-16

Applicant: ATEME

Inventor： Pierre Larbier

IPC: H04N19/136 ,  H04L29/06 ,  H04N19/147 ,  H04N19/85

CPC classification number: H04N19/136 ,  H04L65/602 ,  H04L65/80 ,  H04N19/103 ,  H04N19/124 ,  H04N19/147 ,  H04N19/172 ,  H04N19/176 ,  H04N19/179 ,  H04N19/194 ,  H04N19/30 ,  H04N19/587 ,  H04N19/59 ,  H04N19/85

Abstract: The subject matter of the present invention relates to a method and a computing device (100) for processing a video stream (IN) that makes it possible to generate at least two compressed video streams (OUT1 and OUT2), the device according to the present invention comprising:—an analysis means (M1) configured to analyse at least one image (I) of the video stream (IN) in order to determine at least one metric of said video stream (IN), and -at least first (M5—1) and second (M5—2) encoding means configured to encode, on the basis of said at least one metric, said video stream previously decimated spatially and/or temporally so as to obtain said at least two compressed video streams (OUT1, OUT2).

Abstract translation: 本发明的主题涉及一种用于处理使得可以产生至少两个压缩视频流（OUT1和OUT2）的视频流（IN）的方法和计算装置（100），根据本发明的装置 发明包括： - 分析装置（M1），被配置为分析视频流（IN）的至少一个图像（I），以便确定所述视频流（IN）的至少一个度量，以及 - 至少首先（M5 -1）和第二（M5-2）编码装置，被配置为基于所述至少一个度量编码在空间和/或时间上先前抽取的所述视频流，以便获得所述至少两个压缩视频流（OUT1， OUT2）。

公开(公告)号：US12058397B2

公开(公告)日：2024-08-06

申请号：US18098443

申请日：2023-01-18

Applicant: ATEME

Inventor： Abdelmajid Moussaoui ,  Thomas Guionnet ,  Sassan Pejhan

IPC: H04N21/266 ,  H04N21/2385 ,  H04N21/24

CPC classification number: H04N21/266 ,  H04N21/2385 ,  H04N21/2402 ,  H04N21/2405

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 a video content complexity of the multimedia content stream; 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：US20240236398A9

公开(公告)日：2024-07-11

申请号：US18490001

申请日：2023-10-19

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.