公开(公告)号：US20160134519A1

公开(公告)日：2016-05-12

申请号：US14933810

申请日：2015-11-05

Applicant: CANON KABUSHIKI KAISHA

Inventor： NAËL OUEDRAOGO ,  FRÉDÉRIC MAZE

IPC: H04L12/707 ,  H04L29/06

CPC classification number: H04L45/24 ,  H04L45/124 ,  H04L65/608

Abstract: A method of managing feedback messages in a multipath communication network, the method comprising selecting at least one communication path out of a set of communication paths between a first communication device and a second communication device in order to transmit at least one feedback message from the first communication device to the second communication device. The selecting is based on a correlation between at least one transmission condition on said at least one communication path and at least one transmission constraint for said at least one feedback message.Embodiments make it possible to provide optimal transmission of feedback messages in a multipath context.

Abstract translation: 一种在多路径通信网络中管理反馈消息的方法，所述方法包括从第一通信设备和第二通信设备之间的一组通信路径中选择至少一个通信路径，以便从第一通信设备和第二通信设备发送至少一个反馈消息 通信设备到第二通信设备。 所述选择基于所述至少一个通信路径上的至少一个传输条件与所述至少一个反馈消息的至少一个传输约束之间的相关性。 实施例使得可以在多径上下文中提供反馈消息的最佳传输。

公开(公告)号：US20180184098A1

公开(公告)日：2018-06-28

申请号：US15736265

申请日：2016-06-07

Applicant: CANON KABUSHIKI KAISHA

Inventor： FRANCK DENOUAL ,  FRÉDÉRIC MAZE ,  NAËL OUEDRAOGO ,  CYRIL CONCOLATO ,  JEAN LE FEUVRE

IPC: H04N19/33 ,  H04L29/06 ,  H04N19/162 ,  H04N19/132 ,  H04N19/184 ,  H04N19/167 ,  H04N19/587 ,  H04N19/70 ,  H04N21/845 ,  H04N21/234 ,  H04N21/44

Abstract: The invention relates to a method for obtaining media data and metadata from an encapsulated bit-stream resulting from the encapsulation of one or more bit-streams, the media data of each of the one or more bit-streams being organized into one or more layers, each layer comprising timed samples or sub-samples. A data structure is obtained for referencing metadata including at least one definition of at least one group of timed samples of the media data. At least one operating point descriptor is obtained for each of the one or more bit-streams, the at least one operating point descriptor providing metadata related to descriptive information enabling timed samples belonging to a group of timed samples defined in metadata referenced by the data structure to be independently decoded. Each operating point descriptor associated with one group of timed samples defines the descriptive information of the timed samples belonging to the group.

公开(公告)号：US20170230442A1

公开(公告)日：2017-08-10

申请号：US15279231

申请日：2016-09-28

Applicant: CANON KABUSHIKI KAISHA

Inventor： FRANCK DENOUAL ,  YOUENN FABLET ,  HERVÉ RUELLAN ,  FRÉDÉRIC MAZE ,  NAËL OUEDRAOGO

IPC: H04L29/08 ,  H04L29/06 ,  H04L12/911

Abstract: At least one embodiment of a method of transmitting data between a server device and a client device includes receiving, from the client device, an HTTP request to obtain first data, wherein the HTTP request includes first data identifying information allowing identification of the first data on the server device and includes one or more additional header fields, retrieving and sending the first data to the client device, identifying a set of second data that can be pushed to the client device, as a function of a first indication contained within the one or more additional fields, identifying a subset of the set of second data, as a function of a second indication that is not derived from the received HTTP request, and pushing data of the identified subset of second data to the client device.

公开(公告)号：US20170126527A1

公开(公告)日：2017-05-04

申请号：US15336539

申请日：2016-10-27

Applicant: CANON KABUSHIKI KAISHA

Inventor： NAËL OUEDRAOGO ,  FRÉDÉRIC MAZE ,  JONATHAN TAQUET

IPC: H04L12/26 ,  H04L29/06

CPC classification number: H04L43/0864 ,  H04L43/0829 ,  H04L43/0876 ,  H04L43/16 ,  H04L65/4084 ,  H04L65/608 ,  H04L65/80 ,  H04L67/42

Abstract: A method for estimating network conditions of a multi-path connection between a server and a client that is not aware of multi-path signalling. The server having a plurality of communication interfaces connected to a same communication interface of the client through a respective plurality of paths, the method begins, at the server, by obtaining at least one parameter characterizing the client, determining, based on the at least one obtained parameter, an order for successively considering each path of two or more paths. The method may continue for each path successively considered, sending data over at least the path considered, and receiving, over a reception path, at least one feedback message, in response to the sent data and determining network conditions of the two or more paths, using the received feedback messages.

公开(公告)号：US20200228795A1

公开(公告)日：2020-07-16

申请号：US16831536

申请日：2020-03-26

Applicant: CANON KABUSHIKI KAISHA

Inventor： FRÉDÉRIC MAZE ,  FRANCK DENOUAL ,  NAËL OUEDRAOGO ,  JEAN LE FEUVRE ,  CYRIL CONCOLATO

IPC: H04N19/102 ,  H04N21/84 ,  H04N21/854 ,  H04N19/46 ,  H04N21/845 ,  H04N19/17 ,  H04N19/176 ,  H04N21/81

Abstract: There is provided a method of encapsulating an encoded bitstream representing one or more images, the encapsulated bitstream comprising a data part and a metadata part. The method comprises: providing image item information identifying a portion of the data part representing a sub-image or an image of a single image and/or a set of single images; providing image description information comprising parameters including display parameters and/or transformation operators relating to one or more images and outputting said bitstream together with said provided information as an encapsulated data file. Said image item information comprises one or more properties including at least part of the image description information dedicated to the considered sub-image or single image or set of single images, said image description information being defined in one or more boxes.

公开(公告)号：US20170346873A1

公开(公告)日：2017-11-30

申请号：US15603141

申请日：2017-05-23

Applicant: CANON KABUSHIKI KAISHA

Inventor： FRANCK DENOUAL ,  FRÉDÉRIC MAZE ,  NAËL OUEDRAOGO

IPC: H04L29/06 ,  H04N19/70 ,  H04N19/184 ,  H04N19/174 ,  H04N19/167

CPC classification number: H04L65/607 ,  H04L65/4069 ,  H04L65/4084 ,  H04L65/4092 ,  H04L65/605 ,  H04N19/167 ,  H04N19/174 ,  H04N19/184 ,  H04N19/40 ,  H04N19/70 ,  H04N21/234

Abstract: The invention relates according to one of its embodiments to a method for encapsulating a video bitstream organized into slice segments, the slice segments comprising a plurality of coding units, the method comprising:obtaining a region of interest comprising one or more tiles, each tile comprising a set of one or more coding units;determining whether the region of interest forms part of a slice segment;if it is determined that the region of interest forms part of a slice segment, defining a new slice segment comprising the coding units of only the region of interest; andencapsulating the bitstream comprising the coding units of the region of interest using the new slice segment if it is determined that the region of interest forms part of a slice segment, and using the slice segment otherwise.

公开(公告)号：US20160029091A1

公开(公告)日：2016-01-28

申请号：US14761143

申请日：2014-01-15

Applicant: CANON KABUSHIKI KAISHA

Inventor： HERVÉ LE FLOCH ,  FRÉDÉRIC MAZE ,  NAËL OUEDRAOGO

IPC: H04N21/4728 ,  H04N21/854 ,  H04N19/463 ,  H04N21/2343

CPC classification number: H04N21/4728 ,  H04N19/463 ,  H04N21/234345 ,  H04N21/23439 ,  H04N21/85406

Abstract: A method of processing video data comprising including a link between first encoded image data in a first encoded video stream and second encoded image data in a second encoded video stream, the first and second encoded image data corresponding to a same spatial area of the images of the first and second encoded video streams. Embodiments of the invention provide high resolution display of specific region of interest without a priori knowledge of the position of the region of interest.

Abstract translation: 一种处理视频数据的方法，包括在第一编码视频流中的第一编码图像数据和第二编码视频流中的第二编码图像数据之间包括链接，第一和第二编码图像数据对应于图像的相同空间区域 第一和第二编码视频流。 本发明的实施例提供了特定感兴趣区域的高分辨率显示，而没有对感兴趣区域的位置的先验知识。

公开(公告)号：US20240179297A1

公开(公告)日：2024-05-30

申请号：US18435807

申请日：2024-02-07

Applicant: CANON KABUSHIKI KAISHA

Inventor： FRÉDÉRIC MAZE ,  FRANCK DENOUAL ,  NAËL OUEDRAOGO ,  JEAN LE FEUVRE ,  CYRIL CONCOLATO

IPC: H04N19/102 ,  H04N19/17 ,  H04N19/172 ,  H04N19/176 ,  H04N19/46 ,  H04N21/81 ,  H04N21/84 ,  H04N21/845 ,  H04N21/854

CPC classification number: H04N19/102 ,  H04N19/17 ,  H04N19/176 ,  H04N19/46 ,  H04N21/8153 ,  H04N21/84 ,  H04N21/8455 ,  H04N21/85406 ,  H04N19/172

Abstract: There is provided a method of encapsulating an encoded bitstream representing one or more images, the encapsulated bitstream comprising a data part and a metadata part. The method comprises:



providing image item information identifying a portion of the data part representing a sub-image or an image of a single image and/or a set of single images;
providing image description information comprising parameters including display parameters and/or transformation operators relating to one or more images and
outputting said bitstream together with said provided information as an encapsulated data file.




Said image item information comprises one or more properties including at least part of the image description information dedicated to the considered sub-image or single image or set of single images, said image description information being defined in one or more boxes.

公开(公告)号：US20180352219A1

公开(公告)日：2018-12-06

申请号：US15574119

申请日：2016-06-08

Applicant: CANON KABUSHIKI KAISHA

Inventor： FRÉDÉRIC MAZE ,  FRANCK DENOUAL ,  NAËL OUEDRAOGO ,  JEAN LE FEUVRE ,  CYRIL CONCOLATO

IPC: H04N19/102 ,  H04N19/176 ,  H04N19/46 ,  H04N21/81 ,  H04N21/84 ,  H04N21/854

CPC classification number: H04N21/8455 ,  H04N19/17 ,  H04N19/46 ,  H04N21/84 ,  H04N21/85406

Abstract: There is provided a method of encapsulating an encoded bitstream representing one or more images, the encapsulated bitstream comprising a data part and a metadata part. The method comprises: —providing image item information identifying a portion of the data part representing a sub-image or an image of a single image and/or a set of single images; —providing image description information comprising parameters including display parameters and/or transformation operators relating to one or more images and —outputting said bitstream together with said provided information as an encapsulated data file. Said image item information comprises one or more properties including at least part of the image description information dedicated to the considered sub-image or single image or set of single images, said image description information being defined in one or more boxes.

公开(公告)号：US20180270287A1

公开(公告)日：2018-09-20

申请号：US15923584

申请日：2018-03-16

Applicant: CANON KABUSHIKI KAISHA

Inventor： NAËL OUEDRAOGO ,  Jonathan TAQUET ,  Franck DENOUAL

IPC: H04L29/06 ,  H04N19/593 ,  H04N19/44

CPC classification number: H04L65/607 ,  H04L65/4084 ,  H04L65/602 ,  H04N19/103 ,  H04N19/17 ,  H04N19/44 ,  H04N19/55 ,  H04N19/593 ,  H04N19/70

Abstract: When encoding and transmitting video data comprising regions of interest, different usages of the regions of interest implicate different kinds of combination of region of interest at decoding. By studying the different impacts of the encoding mechanisms depending on other set of tiles data on the different kind of combination, it is possible to define a plurality of tile set coding dependency levels. Each tile set coding dependency level is linked to a set of constraints on encoding. These set of constraints have different impacts on the possibilities allowed when combining the different regions of interest. It is therefore possible, based on a desired usage, to select an encoding with minimal restrictions, as defined by a given tile coding dependency level, compatible with the desired usage. Accordingly, the encoding efficiency is improved, for a given usage, compared to a solution where a complete tile independency solution is used.