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：US10742987B2

公开(公告)日：2020-08-11

申请号：US15569446

申请日：2016-04-20

Applicant: ATEME

Inventor： Pierre Larbier

IPC: H04N19/136 ,  H04N19/142 ,  H04N19/177 ,  H04N19/51 ,  H04N19/194 ,  H04N19/14 ,  H04N19/172 ,  H04N19/132 ,  H04N19/46

Abstract: Disclosed is a method for analyzing a set of images of a video sequence with a view to performing a processing of the sequence. The method includes: determining, in the video sequence, a plurality of disjointed consecutive sub-sequences of at least one successive image according to the type of processing to be carried out and according to the content of the video sequence; and analyzing the images of each sub-sequence determined in the video sequence.

公开(公告)号：US11206418B2

公开(公告)日：2021-12-21

申请号：US15741304

申请日：2016-06-30

Applicant: ATEME

Inventor： Etienne Dupuis ,  Mathieu Monnier ,  Jean-Marc Thiesse ,  Pierre Larbier

IPC: H04N19/513 ,  H04N19/105 ,  H04N19/176 ,  H04N19/119 ,  H04N19/61 ,  H04N19/182 ,  H04N19/523 ,  H04N19/194 ,  H04N19/85 ,  H04N19/103 ,  H04N19/59 ,  H04N19/70 ,  H04N19/33 ,  H04N19/40

Abstract: Disclosed is a method of encoding a video sequence according to a first set of encoding parameters is presented, including redimensioning the video sequence, generating encoding data of the redimensioned video sequence according to a second set of encoding parameters, determining first encoding data of the video sequence by respective scale transposition of encoded data generated for the redimensioned video sequence, determining, for at least one encoding block of an image of the video sequence, respective pixel residuals from predictive coding data obtained by encoding the redimensioned video sequence applying a block transformation to the pixel residuals determined, and inserting the transformed pixel residuals and the first encoding data into a binary encoding stream of the video sequence.

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：US10440384B2

公开(公告)日：2019-10-08

申请号：US15529031

申请日：2015-11-20

Applicant: ATEME

Inventor： Zineb Agyo ,  Mathieu Monnier ,  Jean-Marc Thiesse ,  Pierre Larbier

IPC: H04N19/139 ,  H04N19/52 ,  H04N19/147 ,  H04N19/11 ,  H04N19/109 ,  H04N19/19 ,  H04N19/573 ,  H04N19/154 ,  H04N19/176

Abstract: Disclosed is a method for encoding a first image in a set of images, in which the first image is cut into blocks, each block being encoded according to one from a plurality of encoding modes including at least one temporal correlation prediction encoding mode using a plurality of images from the set of images. The method includes, for a current block of the first image: determining a first motion estimation vector of the current block, determining a value of a visual distortion metric for a temporal correlation prediction encoding mode, the visual distortion metric using a distance between a first temporal prediction vector of the current block pointing to the second image and the first motion estimation vector of the current block, and using the value of the visual distortion metric to encode the current block.