公开(公告)号：US11743463B2

公开(公告)日：2023-08-29

申请号：US17591172

申请日：2022-02-02

Applicant: ORANGE

Inventor： Felix Henry ,  Joel Jung ,  Bappaditya Ray

IPC: H04N19/119 ,  H04N19/105 ,  H04N19/176 ,  H04N19/46

CPC classification number: H04N19/119 ,  H04N19/105 ,  H04N19/176 ,  H04N19/46

Abstract: A method and device for encoding an image divided into blocks. The image contains two separate zones. The method implements the following: only in the event where the current block pertains to one of the zones of the image: encoding the current block using a prediction, the current block being predicted using a previously encoded and then decoded block located in the other zone of the image, the blocks of the other zone having been previously encoded and then decoded, and encoding information indicating the application of the prediction; and for any decoded block pertaining to the other zone of the image, storing the decoded block data.

公开(公告)号：US20220116658A1

公开(公告)日：2022-04-14

申请号：US17560851

申请日：2021-12-23

Applicant: ORANGE

Inventor： Felix Henry ,  Mohsen Abdoli

IPC: H04N19/593 ,  H04N19/105 ,  H04N19/176 ,  H04N19/11 ,  H04N19/147

Abstract: A method and device for encoding and a method and device for decoding a signal including encoded data representing an image sub-divided into blocks, and information representing a correction block and a residual block. For a current block of the image, a first pixel is encoded from a prediction value obtained for the first pixel from at least one pixel of a previously rebuilt block. The prediction is corrected using at least one value of a pixel of the correction block. At least one current pixel of the current block is encoded from a prediction value obtained for the current pixel from at least one previously corrected pixel of the current block. The prediction is corrected by using at least one value of a pixel of the correction block, delivering a prediction block for the current block. The residual block is computed from the current block and the predictive block.

公开(公告)号：US11272177B2

公开(公告)日：2022-03-08

申请号：US16628470

申请日：2018-06-28

Applicant: ORANGE

Inventor： Felix Henry ,  Joel Jung ,  Bappaditya Ray

IPC: H04N19/119 ,  H04N19/105 ,  H04N19/176 ,  H04N19/46

Abstract: A method and device for encoding an image divided into blocks. The image contains two separate zones. The method implements the following: only in the event where the current block pertains to one of the zones of the image: encoding the current block using a prediction, the current block being predicted using a previously encoded and then decoded block located in the other zone of the image, the blocks of the other zone having been previously encoded and then decoded, and encoding information indicating the application of the prediction; and for any decoded block pertaining to the other zone of the image, storing the decoded block data.

公开(公告)号：US11064193B2

公开(公告)日：2021-07-13

申请号：US16628486

申请日：2018-06-28

Applicant: ORANGE

Inventor： Felix Henry ,  Joel Jung ,  Bappaditya Ray

IPC: H04N19/105 ,  H04N19/136 ,  H04N19/176 ,  H04N19/70 ,  H04N13/286 ,  H04N13/356 ,  H04N13/359 ,  H04N13/289 ,  H04N19/103 ,  H04N19/107 ,  H04N19/109 ,  H04N19/11 ,  H04N19/157

Abstract: A method for decoding a data stream representative of an image sequence. At least one current block of a current image in the image sequence is encoded using a predictor block of a reference image, the predictor block being identified in the reference image via location information. An information item enabling the reference image to be identified from a set of reference images is obtained. When the reference image satisfies a predetermined criterion, the location information of the predictor block is decoded using a first decoding mode, otherwise the location information of the predictor block is decoded using a second decoding mode, the first and second decoding modes including at least a different decoding parameter. The current block is then reconstructed from the predictor block.

公开(公告)号：US20210127141A1

公开(公告)日：2021-04-29

申请号：US17142612

申请日：2021-01-06

Applicant: ORANGE

Inventor： Felix Henry

IPC: H04N19/96

Abstract: A method for encoding at least one image, including subdividing the image into a plurality of blocks and subdividing at least one current block into a first portion and a second portion. The first portion has a rectangular or square shape and the second portion complements the first portion in the current block. The second portion has a geometric shape with m sides, wherein m>4. Then the first and second portions are encoded.

公开(公告)号：US10924769B2

公开(公告)日：2021-02-16

申请号：US15527548

申请日：2015-11-24

Applicant: ORANGE

Inventor： Felix Henry

IPC: H04N19/96

Abstract: A method for encoding at least one image, including subdividing the image into a plurality of blocks and subdividing at least one current block into a first portion and a second portion. The first portion has a rectangular or square shape and the second portion complements the first portion in the current block. The second portion has a geometric shape with m sides, wherein m>4. Then the first and second portions are encoded.

公开(公告)号：US10805623B2

公开(公告)日：2020-10-13

申请号：US16073917

申请日：2017-01-17

Applicant: Orange

Inventor： Felix Henry ,  Gordon Clare

IPC: H04N19/44 ,  H04N19/46 ,  H04N19/70 ,  H04N19/18 ,  H04N19/136 ,  H04N19/13 ,  H04N19/176 ,  H04N19/91

Abstract: A method for decoding a signal of encoded digital data, which includes, for at least one part of the signal: determining information representing a characteristic of the encoded data contained in the at least one signal part; determining first and second values of at least one datum required for the decoding of the data; decoding the data based on the first value to obtain a first characteristic of the decoded data; decoding the data based on the second value to obtain a second characteristic of the decoded data; selecting the first or the second value according to the information representing a characteristic of the encoded data and according to the first and second characteristics of the decoded data; and reconstructing the data based on the first or the second value, which has been selected.

公开(公告)号：US20190045205A1

公开(公告)日：2019-02-07

申请号：US16073917

申请日：2017-01-17

Applicant: Orange

Inventor： Felix Henry ,  Gordon Clare

IPC: H04N19/44 ,  H04N19/46

CPC classification number: H04N19/44 ,  H04N19/13 ,  H04N19/136 ,  H04N19/176 ,  H04N19/18 ,  H04N19/46 ,  H04N19/70 ,  H04N19/91

Abstract: A method for decoding a signal of encoded digital data, which includes, for at least one part of the signal: determining information representing a characteristic of the encoded data contained in the at least one signal part; determining first and second values of at least one datum required for the decoding of the data; decoding the data based on the first value to obtain a first characteristic of the decoded data; decoding the data based on the second value to obtain a second characteristic of the decoded data; selecting the first or the second value according to the information representing a characteristic of the encoded data and according to the first and second characteristics of the decoded data; and reconstructing the data based on the first or the second value, which has been selected.

公开(公告)号：US20180357742A1

公开(公告)日：2018-12-13

申请号：US15778657

申请日：2016-11-21

Applicant: B<>COM ,  Orange

Inventor： Felix Henry ,  Patrice Houze ,  Emilie Sirvent-Hien ,  Gaetan Le Guelvouit

IPC: G06T1/00 ,  H04N19/467 ,  H04N21/8358

CPC classification number: G06T1/0085 ,  G06T2201/0051 ,  G06T2201/0061 ,  H04N19/467 ,  H04N21/8358

Abstract: A method for processing a sequence of digital images. The method includes, for a current group: a) forming a main group including original images partitioned into spatial areas and including a watermarking zone; b) obtaining a main bitstream representing an area-based encoding of the images of the main group, in which for an area other than the watermarking area, the pixels of that zone are not predicted with reference to pixels in the watermarking area; c) for the watermarking area: forming a secondary group of images having the same temporal dimension as the main group and spatial dimensions equal to those of the watermarking area, inserting a first watermarking information value into the secondary group, and obtaining a first secondary bitstream representing images of the encoded secondary group including the first watermarking information value; and d) transmitting the main and first secondary bitstreams in the telecommunication network to a client.

公开(公告)号：US20180070109A1

公开(公告)日：2018-03-08

申请号：US15551804

申请日：2016-02-18

Applicant: Orange

Inventor： Felix Henry ,  Bihong Huang

IPC: H04N19/94 ,  H04N19/137 ,  H04N19/176 ,  H04N19/124 ,  H04N19/105

CPC classification number: H04N19/94 ,  H04N19/105 ,  H04N19/124 ,  H04N19/126 ,  H04N19/137 ,  H04N19/15 ,  H04N19/176 ,  H04N19/593 ,  H04N19/61

Abstract: A method is provided for encoding of at least one image. The encoding method implements, for a current block to be coded for the image: predicting current block according to a prediction procedure selected from among a plurality of predetermined prediction procedures; obtaining a predictor block from the prediction; calculating a first set of data representing a comparison between the predictor block obtained and the current block; comparing the calculated first set with a plurality of quantization vectors; selecting one of the vectors according to a predetermined encoding performance criterion; encoding an index associated with the selected vector; calculating a second set of data representing a comparison between the first calculated data set and the selected vector; and encoding the second calculated data set. During the encoding, at least one of the quantization vectors is modified on the basis of the data from the second calculated data set.