公开(公告)号：US20230011999A1

公开(公告)日：2023-01-12

申请号：US17947756

申请日：2022-09-19

Applicant: ATEME

Inventor： Elie Mora ,  Anthony Nasrallah

IPC: G06T9/00 ,  H04N19/11 ,  H04N19/119 ,  H04N19/159 ,  H04N19/176

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：US20220357995A1

公开(公告)日：2022-11-10

申请号：US17737100

申请日：2022-05-05

Applicant: ATEME

Inventor： Abdelmajid Moussaoui

IPC: G06F9/50

Abstract: A computer-implemented resource allocation method is provided, which comprises, in a computing environment comprising a resource management unit and a cluster comprising a cluster management node and a cluster node running an application program: receiving, by the resource management unit, a request for allocating one or more system resources to the application program; retrieving, by the resource management unit, from the cluster management node, an identifier of the cluster node running the application program; dynamically updating system physical resources allocated to the cluster node by updating a resource allocation file managed by an operating system of a computing machine on which the cluster is running, based on the identifier of the cluster node and the received request.

公开(公告)号：US11265563B2

公开(公告)日：2022-03-01

申请号：US16599780

申请日：2019-10-11

Applicant: ATEME

Inventor： Ronan Parois

IPC: H04N19/117 ,  H04N19/132 ,  H04N19/33 ,  H04N19/136 ,  H04N19/167 ,  H04N19/80

Abstract: The disclosure lies in the field of coding image data, scalable in image resolution, such that one or more successive downsamplings are performed from a source signal of maximal image resolution to a minimal image resolution, in order to encode a base layer (L0) corresponding to this minimal resolution, the base layer (L0) serving as a reference for one or more enhancement layers (L1, L2) to be used for decoding at a terminal having a screen of higher image resolution than the minimal image resolution. From said successive downsamplings, the base layer (L0) and the one or more enhancement layers (L1, L2) are constructed, and then an encoded bit stream is prepared in order to be transmitted, comprising data of the base layer and of the enhancement layer or layers. In particular, the downsampling step comprises the application of an adaptive low-pass filter to the image data from the downsampling.

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.