公开(公告)号：US20230421794A1

公开(公告)日：2023-12-28

申请号：US18462201

申请日：2023-09-06

Applicant: CANON KABUSHIKI KAISHA

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

IPC: H04N19/46 ,  H04N21/236 ,  H04N21/845

CPC classification number: H04N19/46 ,  H04N21/236 ,  H04N21/845

Abstract: A method of encapsulating an encoded bitstream representing one or more images includes providing description of images and/or sub-image picture, providing composed picture description, and outputting the bitstream. The description of images and/or sub-image pictures identifying portions of the bitstream representing the images and/or sub-images of the one or more images is provided. The composed picture description of at least one composed picture formed by one or more images and/or sub-image pictures also is provided. The bitstream, together with the composed picture description, is output as an encapsulated data file.

公开(公告)号：US20230353842A1

公开(公告)日：2023-11-02

申请号：US18194454

申请日：2023-03-31

Applicant: CANON KABUSHIKI KAISHA

Inventor： Frédéric MAZE ,  Franck DENOUAL ,  Hervé RUELLAN

IPC: G11B27/34 ,  H04N21/84

CPC classification number: H04N21/84 ,  G11B27/34

Abstract: The present invention concerns a method of generating a media file, the method comprising: generating a first track of media data samples; generating a region track associated with the first track, each sample of the region track comprising a region description data structure comprising geometry information of one or more regions in at least one corresponding sample of the first track; wherein the region description data structure comprises a region identifier associated with each region; and the method further comprise: generating a region annotation in a container; generating association metadata associating a region identifier with the region annotation; generating a media file including the first track, the region track, the region annotation, and the association metadata.

公开(公告)号：US20230169107A1

公开(公告)日：2023-06-01

申请号：US17917135

申请日：2021-03-23

Applicant: CANON KABUSHIKI KAISHA

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

IPC: G06F16/51 ,  G06V20/70 ,  G06T7/60 ,  G06V10/22

CPC classification number: G06F16/51 ,  G06T7/60 ,  G06V10/22 ,  G06V20/70 ,  G06V2201/10

Abstract: A method of encapsulating image items in a file, the method comprising for an image item: generating an item portion annotation data structure related to a portion of the image item, the item portion annotation data structure being associated with the image item; generating a geometry data structure describing the geometry of the portion of the image item associated with the item portion annotation data structure; generating at least one annotation data structure associated with the item portion annotation data structure; and embedding the image item, the item portion annotation data structure, the geometry data structure and the at least one annotation data structure in the file.

公开(公告)号：US20210390131A1

公开(公告)日：2021-12-16

申请号：US17346053

申请日：2021-06-11

Applicant: CANON KABUSHIKI KAISHA

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

IPC: G06F16/45 ,  H04N19/169 ,  H04N19/46 ,  G06F16/41 ,  G06F16/11

Abstract: The invention relates to a method of generating a media file, the method comprising: generating a first data structure assigning a subset of samples or subsamples of a track to one or more sample groups; generating a second data structure comprising data for describing each of the one or more sample groups, the first data structure comprising a first grouping type and the second data structure comprising a second grouping type, wherein the second data structure comprises data for indicating whether the data for describing each of the one or more sample groups is invariant along time or not; and generating a media file including the samples, and the first and second data structures

公开(公告)号：US20200244942A1

公开(公告)日：2020-07-30

申请号：US16652645

申请日：2018-10-04

Applicant: CANON KABUSHIKI KAISHA

Inventor： Frédéric MAZE ,  Franck DENOUAL ,  Jonathan TAQUET ,  Naël OUEDRAOGO

IPC: H04N13/178 ,  H04N21/84 ,  H04N13/161 ,  H04N13/194

Abstract: The invention relates to a method for generating one or more media files, the method comprising: obtaining encoded stereoscopic media data comprising first view frames and second view frames, each first view frame being associated with a second view frame, generating a track comprising the encoded stereoscopic media data, generating descriptive metadata based on which the view frame corresponding to a left view is identified, and generating the one or more media files based on the generated track and the generated descriptive metadata. The invention also relates to a method for processing one or more media files, the method comprising: obtaining the one or more media files, processing the obtained one or more media files to obtain a track comprising encoded stereoscopic media data comprising first view frames and second view frames, each first view frame being associated with a second view frame, and processing the obtained one or more media files to obtain descriptive metadata based on which the view frame corresponding to a left view is identified.

公开(公告)号：US20200228844A1

公开(公告)日：2020-07-16

申请号：US16775001

申请日：2020-01-28

Applicant: CANON KABUSHIKI KAISHA

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

IPC: H04N19/70 ,  H04N21/4728 ,  H04N21/845 ,  H04N21/854 ,  H04N19/17 ,  H04N19/46 ,  H04N21/81 ,  H04N19/105

Abstract: Methods of encapsulating a bitstream include generating reference information to enable image items identifying image portions of a bit stream to be referenced to corresponding description information. The resulting encapsulated file may also include information identifying a timed portion of the data stream corresponding to a video sequence. Description information may include spatial parameters, such as position and width and height of sub-parts of an overall image, and/or display parameters such as colour display, pixel aspect ratio, and clean aperture parameters.

公开(公告)号：US20200099997A1

公开(公告)日：2020-03-26

申请号：US16497215

申请日：2018-03-20

Applicant: CANON KABUSHIKI KAISHA

Inventor： Franck DENOUAL ,  Frédéric MAZE

IPC: H04N21/845 ,  H04N21/854 ,  H04N21/2343 ,  H04N19/70

Abstract: The present invention concerns a method for encoding media data composed of a plurality of samples, the method comprising by a server device: encoding the media data to obtain encoded media data; encapsulating the encoded media data in a set of at least one first track; generating a second track; wherein: the second track describes samples representing the result of applying a set of at least one transformation operator to samples of at least one first track; the second track comprises references to at least one of the first tracks; and the second track comprises in the metadata part, a description of the set of transformation operators.

公开(公告)号：US20190158935A1

公开(公告)日：2019-05-23

申请号：US16099667

申请日：2017-05-23

Applicant: CANON KABUSHIKI KAISHA

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

IPC: H04N21/845 ,  H04N19/167 ,  H04N19/174 ,  H04N19/169 ,  H04N21/84

Abstract: The invention relates according to one of its embodiments to a method for encapsulating a partitioned timed media data, the partitioned timed media data comprising timed samples, at least one timed sample comprising at least one subsample. The method comprising: obtaining at least one subsample from at least one of the timed samples; creating a first track comprising the at least one obtained subsample; obtaining at least another subsample from the same one of the timed samples; creating a second track comprising said at least another obtained subsample; and generating descriptive metadata, the descriptive metadata comprising a unified descriptor comprising: a first parameter which indicates, when set to 1, that the at least one obtained subsample is a complete frame; and at least a second parameter which specifies coding dependencies between the at least one obtained subsample and the at least another obtained subsample.

公开(公告)号：US20190158933A1

公开(公告)日：2019-05-23

申请号：US16099395

申请日：2017-05-18

Applicant: CANON KABUSHIKI KAISHA

Inventor： Naël OUEDRAOGO ,  Franck DENOUAL ,  Jonathan TAQUET

IPC: H04N21/81 ,  H04N21/643 ,  H04N21/84 ,  H04N21/845 ,  H04N21/8543

Abstract: The invention relates to streaming of media data representing a capturing projection of a wide view of a scene, from a server to a client, the streamed media data making it possible for the client to render the wide view on a 3D 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 transmitting, to the client, a description file including information on the media data, the information including descriptive information relating to the capture of the wide view for producing the media data and descriptive information relating to a quality level of a spatial partition of the media data, receiving, from the client, a request message to request a media data stream based on the description file, media data corresponding to the requested media data stream are transmitted to the client.

公开(公告)号：US20190089970A1

公开(公告)日：2019-03-21

申请号：US16195667

申请日：2018-11-19

Applicant: Canon Kabushiki Kaisha

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

IPC: H04N19/46 ,  H04N21/845 ,  H04N21/236

CPC classification number: H04N19/46 ,  H04N21/236 ,  H04N21/845

Abstract: A method of encapsulating an encoded bitstream representing one or more images includes providing description of images and/or sub-image picture, providing composed picture description, and outputting the bitstream. The description of images and/or sub-image pictures identifying portions of the bitstream representing the images and/or sub-images of the one or more images is provided. The composed picture description of at least one composed picture formed by one or more images and/or sub-image pictures also is provided. The bitstream, together with the composed picture description, is output as an encapsulated data file.