公开(公告)号：US20170353722A1

公开(公告)日：2017-12-07

申请号：US15538970

申请日：2015-12-14

申请人： B<>COM ,  Orange

发明人： Joel Jung

IPC分类号： H04N19/119 ,  H04N19/139 ,  H04N19/147 ,  H04N19/176

CPC分类号： H04N19/119 ,  H04N19/139 ,  H04N19/147 ,  H04N19/176 ,  H04N19/70

摘要： A method for encoding a digital image, which is divided into a plurality of blocks of pixels processed in a defined order. The method includes the following acts for a current block: a) obtaining a basic motion vector of the current block with respect to a reference image previously decoded; b) obtaining a partitioning into sub-blocks of the area pointed to in the reference image by the basic motion vector and applying the partitioning obtained to the current block; and c) scanning the sub-blocks of the current block according to a predetermined scanning order and encoding the sub-blocks scanned. The encoding includes modifying the partitioning of the current block into sub-blocks according to predetermined rules, coding the sub-blocks of the modified partitioning comprising coding reporting information on the modification of the partitioning, and validating the modified partitioning by applying a rate-distortion criterion to the coded sub-blocks of the modified partitioning.

公开(公告)号：US10812814B2

公开(公告)日：2020-10-20

申请号：US16092962

申请日：2017-06-19

申请人： B<>COM

发明人： Joel Jung ,  Felix Henry ,  Charlene Mouton

IPC分类号： H04N19/196 ,  H04N19/11 ,  H04N19/103 ,  H04N19/176 ,  H04N19/593 ,  H04N19/14

摘要： A method for decoding a coded data stream representative of at least one image, the image being divided into blocks, a set of at least two prediction modes being available for predicting a current block. The method includes: obtaining at least two categories of prediction modes from the set; eliminating at least one category in accordance with at least one first predetermined elimination criterion; updating the categories not eliminated by deleting prediction modes that are common with the at least one eliminated category; and decoding, from the data stream, an information identifying for the current block a prediction mode among the modes of the updated categories.

公开(公告)号：US10958901B2

公开(公告)日：2021-03-23

申请号：US16300691

申请日：2017-04-27

申请人： B-COM

发明人： Felix Henry ,  Joel Jung ,  Charlene Mouton

IPC分类号： H04N19/107 ,  H04N19/176 ,  H04N19/11 ,  H04N19/119 ,  H04N19/184 ,  G06K9/62

摘要： A method of decoding an encoded data stream representing at least one image subdivided into blocks. The method includes, for a current block of the image, and for each of at least two prediction modes available to predict the current block, obtaining a predictive block associated with the available mode; building a list having at least one of the available modes; for at least one mode included in the list, called a current mode, determining a distance measurement between the predictive block associated with the current mode and the other predictive blocks associated with the other available modes and obtained for the current block; modifying the list modified as a function of the determined measurement; decoding information identifying, for the current block, a prediction mode from the modified list from the encoded data stream; and rebuilding the current block from the predictive block associated with the identified prediction mode.

公开(公告)号：US20190208196A1

公开(公告)日：2019-07-04

申请号：US16300691

申请日：2017-04-27

申请人： B-COM

发明人： Felix Henry ,  Joel Jung ,  Charlene Mouton

IPC分类号： H04N19/107 ,  H04N19/119 ,  H04N19/176 ,  H04N19/184 ,  G06K9/62

CPC分类号： H04N19/107 ,  G06K9/6215 ,  H04N19/11 ,  H04N19/119 ,  H04N19/176 ,  H04N19/184

摘要： A method of decoding an encoded data stream representing at least one image subdivided into blocks. The method includes, for a current block of the image, and for each of at least two prediction modes available to predict the current block, obtaining a predictive block associated with the available mode; building a list having at least one of the available modes; for at least one mode included in the list, called a current mode, determining a distance measurement between the predictive block associated with the current mode and the other predictive blocks associated with the other available modes and obtained for the current block; modifying the list modified as a function of the determined measurement; decoding information identifying, for the current block, a prediction mode from the modified list from the encoded data stream; and rebuilding the current block from the predictive block associated with the identified prediction mode.

公开(公告)号：US20190174138A1

公开(公告)日：2019-06-06

申请号：US16092962

申请日：2017-06-19

申请人： B<>COM

发明人： Joel Jung ,  Felix Henry ,  Charlene Mouton

IPC分类号： H04N19/196 ,  H04N19/103 ,  H04N19/14 ,  H04N19/593

CPC分类号： H04N19/197 ,  H04N19/103 ,  H04N19/11 ,  H04N19/14 ,  H04N19/176 ,  H04N19/593

摘要： A method for decoding a coded data stream representative of at least one image, the image being divided into blocks, a set of at least two prediction modes being available for predicting a current block. The method includes: obtaining at least two categories of prediction modes from the set; eliminating at least one category in accordance with at least one first predetermined elimination criterion; updating the categories not eliminated by deleting prediction modes that are common with the at least one eliminated category; and decoding, from the data stream, an information identifying for the current block a prediction mode among the modes of the updated categories.

公开(公告)号：US11889115B2

公开(公告)日：2024-01-30

申请号：US17678376

申请日：2022-02-23

申请人： ORANGE

发明人： Joel Jung ,  Pavel Nikitin ,  Patrick Boissonade

IPC分类号： H04N19/597 ,  H04N19/70 ,  H04N19/172 ,  H04N19/44 ,  H04N19/119 ,  H04N19/124

CPC分类号： H04N19/597 ,  H04N19/70

摘要： A method and a device for decoding a data stream representative of a multi-view video. Syntax elements are obtained from at least one part of the stream data, and used to reconstruct at least one image of a view of the video. Then, at least one item of metadata in a predetermined form is obtained from at least one obtained syntax element, and provided to an image processing module. Also, a method and a device for processing images configured to read the at least one item of metadata in the predetermined form and use it to generate at least one image of a virtual view from a reconstructed view of the multi-view video.

公开(公告)号：US11284085B2

公开(公告)日：2022-03-22

申请号：US16628467

申请日：2018-06-28

申请人： ORANGE

发明人： Joel Jung ,  Felix Henry ,  Bappaditya Ray

IPC分类号： H04N19/14 ,  H04N19/105 ,  H04N19/119 ,  H04N19/176

摘要： A method and device for encoding an image divided into blocks. The image contains separate first and second zones). The encoding implements the following, for at least one current block of the image: determining to which of the first and second zones the current block pertains; if the current block pertains to the first zone, encoding the current block by using a first encoding method; if the current block pertains to the second zone, encoding the current block by using a second encoding method including the following: from the position of the current block in the second zone, identifying a previously encoded, then decoded block located in the first zone of the image; and reproducing the value of at least one encoding parameter associated with the identified block.

公开(公告)号：US10893295B2

公开(公告)日：2021-01-12

申请号：US15766992

申请日：2016-09-29

申请人： ORANGE

发明人： Joel Jung ,  Antoine Dricot

IPC分类号： H04N19/597 ,  H04N19/105 ,  H04N19/172 ,  H04N19/137

摘要： A method and apparatus for decoding a current view belonging to a previously coded multi-view image. The method includes: determining, in a set of views belonging to the multi-view image or to another multi-view image, a pathway of views that are necessary for the decoding of the current view, the pathway comprising at least one as yet undecoded view; decoding the at least one view not yet decoded; and decoding the current view on the basis of a set of coded data representative of at least one difference between the current view and another view of the multi-view image or of another multi-view image, and of the at least one decoded view.

公开(公告)号：US20200186834A1

公开(公告)日：2020-06-11

申请号：US16777196

申请日：2020-01-30

申请人： Orange

发明人： Elie Gabriel Mora ,  Joel Jung

IPC分类号： H04N19/597 ,  H04N13/128 ,  H04N13/178 ,  H04N13/122

摘要： A decoding method including: decoding at a current time instant a current image having at least two views respectively representative of a same scene. The decoding includes: deriving a disparity motion vector for a current block; predictively decoding the current block according to the derived disparity motion vector; and during the deriving: constructing a plurality of lists of disparity motion vectors, including at least one list in which at least two disparity motion vectors have been derived respectively according to at least two different estimation methods; applying a first function to the at least two disparity motion vectors of the at least one list, to obtain one disparity motion vector for each of the at least one list, and applying a second function to the disparity motion vectors of the plurality of lists to deliver the derived disparity motion vector.

公开(公告)号：US20200084477A1

公开(公告)日：2020-03-12

申请号：US16493624

申请日：2018-03-12

申请人： Orange

发明人： Felix Henry ,  Joel Jung ,  Bappaditya Ray

IPC分类号： H04N19/70 ,  H04N19/46 ,  H04N19/176 ,  H04N19/136 ,  H04N19/102 ,  H04N19/61

摘要： A method of encoding at least one image divided into blocks, implementing: encoding a first syntax element associated with a characteristic of the at least one image; encoding, for a current block to be encoded associated with at least one encoding parameter, the data of the current block; if the first syntax element is encoded according to a first predefined value representing the characteristic of the image, a second syntax element representing the value of the at least one encoding parameter is encoded only if the current block belongs to a predefined zone of the image; if the first syntax element is encoded according to a second predefined value representing the characteristic of the image, the second syntax element is encoded, whether or not the current block belongs to the predefined zone.