公开(公告)号：US20190141359A1

公开(公告)日：2019-05-09

申请号：US16099325

申请日：2017-05-18

Applicant: CANON KABUSHIKI KAISHA

Inventor： Jonathan TAQUET ,  Franck DENOUAL ,  Naël OUEDRAOGO

IPC: H04N21/218 ,  H04N21/845 ,  H04N21/2343 ,  H04N21/81 ,  H04N21/235

Abstract: The invention relates to the streaming of media data representing a capturing projection of a wide view of a scene, the streamed media data making it possible to render the wide view on a 3D geometric display surface or to render the wide view on a display surface according to different viewpoints, the rendering comprising rendering projection of media data. After having received a description file including information on the media data, the information comprising descriptive information relating to the capture of the wide view for producing the media data, request messages to request media data streams based on the description file are sent to the server. In response to the request messages, media data corresponding to the requested media data streams are received.

公开(公告)号：US20190124419A1

公开(公告)日：2019-04-25

申请号：US16230721

申请日：2018-12-21

Applicant: CANON KABUSHIKI KAISHA

Inventor： Franck DENOUAL ,  Frédéric MAZE ,  Jean LE FEUVRE ,  Cyril CONCOLATO

IPC: H04N21/845 ,  H04N21/854 ,  H04N21/438 ,  H04N19/70 ,  H04N21/4728 ,  H04N19/17 ,  H04N19/30 ,  H04N21/6587

CPC classification number: H04N21/845 ,  H04N19/17 ,  H04N19/30 ,  H04N19/70 ,  H04N21/4382 ,  H04N21/4728 ,  H04N21/6587 ,  H04N21/8451 ,  H04N21/854 ,  H04N21/85406

Abstract: The invention relates to encapsulating partitioned timed media data to be streamed to a client's device, the partitioned timed media data comprising timed samples, each comprising a plurality of subsamples. After having grouped several of the subsamples to form at least one group so that at least part of the subsamples belongs to a group of subsamples, at least two subsamples of the same group are selected from amongst the plurality of subsamples of one of the timed samples and at least one track comprising the selected subsamples is created. Next, for the at least one created track, one sub-track box is created for each of the subsamples selected to create the at least one track, at least one of the created sub-track boxes comprising definitions and properties that are common to the selected sub-samples. Each of the created tracks is independently encapsulated in at least one media file.

公开(公告)号：US20240430419A1

公开(公告)日：2024-12-26

申请号：US18830324

申请日：2024-09-10

Applicant: CANON KABUSHIKI KAISHA

Inventor： Naël OUEDRAOGO ,  Franck DENOUAL

IPC: H04N19/117 ,  H04N19/176 ,  H04N19/46 ,  H04N19/70

Abstract: An encoding method comprising the encoding of information allowing the decoder to infer the splitting of CTBs located at the right, respectively the bottom of a subpicture, which width, respectively height, is not a multiple of the size of the CTBs, when the subpicture is not located at the right, respectively the bottom, of the image. Corresponding decoding methods for the generated bitstream are also proposed.

公开(公告)号：US20240397127A1

公开(公告)日：2024-11-28

申请号：US18695606

申请日：2022-09-20

Applicant: CANON KABUSHIKI KAISHA

Inventor： Franck DENOUAL ,  Frédéric MAZE ,  Naël OUEDRAOGO ,  Jean LE FEUVRE

IPC: H04N21/235 ,  H04N21/845 ,  H04N21/854

Abstract: At least one embodiment of a method for encapsulating media data as fragments, each fragment comprising metadata and media data, the metadata describing encapsulation of the media data. After having obtained second media data to be encapsulated within a second fragment and second metadata describing encapsulation of the second media data, it is determined whether some of the second metadata are identical to some of first metadata belonging to a first fragment and describing encapsulation of first media data within the first fragment. If it is the case and if the second fragment is not to be parsed independently, the second media data and a portion of the second metadata are encapsulated within the second fragment, the second fragment further comprising an indication to signal that the metadata part of the second fragment comprises only a portion of the metadata required to parse the media data of the second fragment.

公开(公告)号：US20240107129A1

公开(公告)日：2024-03-28

申请号：US18257236

申请日：2021-12-15

Applicant: CANON KABUSHIKI KAISHA

Inventor： Hervé RUELLAN ,  Franck DENOUAL ,  Frédéric MAZE ,  Naël OUEDRAOGO ,  Masanori FUKADA

IPC: H04N21/854 ,  H04N21/2343 ,  H04N21/84

CPC classification number: H04N21/854 ,  H04N21/234327 ,  H04N21/23439 ,  H04N21/84

Abstract: A method of encapsulating image data in a media file, the image data being related to a main image to be generated based on a plurality of sub-images, wherein the method comprises: obtaining the plurality of sub-images, each sub-image being provided in at least one version; generating descriptive metadata for describing the main image and the plurality of sub-images; encapsulating the plurality of sub-images and the descriptive metadata in the media file; wherein the method further comprises: generating a progressive information defining a set of consecutive progressive steps for generating a version of the main image, each progressive step being associated with a set of sub-images versions required to generate the version of the main image; and embedding the progressive information in the descriptive metadata.

公开(公告)号：US20230370659A1

公开(公告)日：2023-11-16

申请号：US18029050

申请日：2021-09-28

Applicant: CANON KABUSHIKI KAISHA

Inventor： Frédéric MAZE ,  Franck DENOUAL ,  Jean LE FEUVRE

IPC: H04N21/2389 ,  H04N21/235 ,  H04N21/84

CPC classification number: H04N21/2389 ,  H04N21/235 ,  H04N21/84

Abstract: A method for encapsulating media data, the media data comprising metadata and data associated with the metadata, the metadata being descriptive of the associated data, the media data comprising a plurality of segments, at least one segment comprising a plurality of sub-segments. For a plurality of byte ranges of at least one of the sub-segments, associating one level value with each byte range within metadata descriptive of partial sub-segments of the at least one of the sub-segments, wherein the metadata descriptive of partial sub-segments of the at least one of the sub-segments further comprise a feature type value representative of features associated with level values.

公开(公告)号：US20230254549A1

公开(公告)日：2023-08-10

申请号：US18012587

申请日：2021-06-03

Applicant: CANON KABUSHIKI KAISHA

Inventor： Franck DENOUAL ,  Frédéric MAZE ,  Hervé RUELLAN

IPC: H04N21/81 ,  G06T7/50 ,  G06T7/60 ,  G06V10/25 ,  H04N21/84

CPC classification number: H04N21/8153 ,  G06T7/50 ,  G06T7/60 ,  G06V10/25 ,  H04N21/84 ,  G06V2201/07

Abstract: The present invention concerns a method of generating a media file, the method comprising: generating a first track of media data samples; generating at least one annotated region, the annotated region being associated with a geometry of the annotated region, the annotated region being associated with at least one region annotation describing the annotated region; wherein the annotated region is associated with the first track of media data samples; and generating a media file including the first track and the at least one annotated region, associated geometry and associated region annotation.

公开(公告)号：US20230164371A1

公开(公告)日：2023-05-25

申请号：US17917168

申请日：2021-04-06

Applicant: CANON KABUSHIKI KAISHA

Inventor： Franck DENOUAL ,  Frédéric MAZE ,  Naël OUEDRAOGO ,  Jean LE FEUVRE

IPC: H04N21/2343 ,  H04N19/169

CPC classification number: H04N21/2343 ,  H04N19/188

Abstract: A method for encapsulating a video bit-stream in a server, including obtaining at least one network abstraction layer unit (NAL unit) of a first picture, buffering the at least one obtained NAL unit, obtaining at least one NAL unit of a second picture, the second picture being a random access picture following the first picture, and encapsulating the at least one obtained NAL unit of the second picture and the at least one buffered NAL unit in an encapsulation structure making it possible to generate a video bit-stream without processing the encapsulated at least one buffered NAL unit when processing the encapsulated video bit-stream

公开(公告)号：US20230025332A1

公开(公告)日：2023-01-26

申请号：US17785851

申请日：2020-12-16

Applicant: CANON KABUSHIKI KAISHA

Inventor： Franck DENOUAL ,  Naël OUEDRAOGO ,  Eric NASSOR ,  Frédéric MAZE ,  Jean LE FEUVRE

IPC: H04N19/172 ,  H04N21/845

Abstract: According to embodiments, the invention provides a method for encapsulating partitioned timed media data comprising timed samples, comprising in turn subsamples, the timed samples being grouped into groups, the method comprising: obtaining spatial tracks, each spatial track comprising at least one subsample of a first timed sample and one corresponding subsample of the other timed samples, the corresponding subsamples being located at the same spatial position in its own timed sample as the at least one subsample; creating a base track referencing at least some of the spatial tracks, the base track comprising reconstruction instructions, each of the reconstruction instructions being associated with a group of timed samples, enabling generating a portion of a bit-stream from sub-samples of spatial tracks, that belong to a same group of timed samples; and independently encapsulating each of the tracks in a least one media file.

公开(公告)号：US20220329792A1

公开(公告)日：2022-10-13

申请号：US17642535

申请日：2020-09-07

Applicant: CANON KABUSHIKI KAISHA

Inventor： Naël OUEDRAOGO ,  Franck DENOUAL

IPC: H04N19/117 ,  H04N19/176 ,  H04N19/46 ,  H04N19/70

Abstract: An encoding method comprising the encoding of information allowing the decoder to infer the splitting of CTBs located at the right, respectively the bottom of a subpicture, which width, respectively height, is not a multiple of the size of the CTBs, when the subpicture is not located at the right, respectively the bottom, of the image. Corresponding decoding methods for the generated bitstream are also proposed.