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    METHOD, DEVICE, AND COMPUTER PROGRAM FOR TRANSMITTING PORTIONS OF ENCAPSULATED MEDIA CONTENT
    11.
    发明申请
    METHOD, DEVICE, AND COMPUTER PROGRAM FOR TRANSMITTING PORTIONS OF ENCAPSULATED MEDIA CONTENT 审中-公开

    公开(公告)号：US20200329284A1

    公开(公告)日：2020-10-15

    申请号：US16956308

    申请日：2018-12-19

    Applicant: CANON KABUSHIKI KAISHA

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

    IPC: H04N21/845 ,  H04N21/854 ,  H04L29/08 ,  H04L29/06

    Abstract: According to embodiments, the invention provides a method for transmitting encapsulated media data from a server to a client, the media data being requested by the client, the method being carried out by the server and comprising: —identifying at least one byte-range of the encapsulated media data to be transmitted, the at least one byte-range representing a portion of the encapsulated media data; —obtaining a processing level of the at least one identified byte-range, the processing level being indicative of the role of data contained in the at least one identified byte-range for processing the encapsulated media data; and—sending the at least one identified byte-range and an item of information determined as a function of the obtained processing level to the client.

    METHOD AND APPARATUS FOR ENCAPSULATING DATA OF A PLURALITY OF PORTIONS OF IMAGES IN A MEDIA FILE
    12.
    发明申请
    METHOD AND APPARATUS FOR ENCAPSULATING DATA OF A PLURALITY OF PORTIONS OF IMAGES IN A MEDIA FILE 有权

    公开(公告)号：US20250119544A1

    公开(公告)日：2025-04-10

    申请号：US18909244

    申请日：2024-10-08

    Applicant: CANON KABUSHIKI KAISHA

    Inventor： Frédéric MAZE ,  Hervé RUELLAN ,  Franck DENOUAL

    IPC: H04N19/119 ,  H04N19/174 ,  H04N19/30 ,  H04N19/70

    Abstract: The present invention concerns a method of encapsulation of a partitioned image in an ISOBMFF based media file, the image being partitioned in rectangular image portions, the image portions being independently decodable, the method comprising the following steps: obtaining the partitioned image; generating an image item describing the partitioned image; storing each image portion data in a different extent of the image item; associating information with the image item, the information indicating that each extent of the image item is constrained to enclose data units of the image item that are extractable and independently decodable; and encapsulating the image item, the partitioned image.

    METHOD AND APPARATUS FOR ENCAPSULATING ENCODED MEDIA DATA IN A MEDIA FILE
    16.
    发明申请
    METHOD AND APPARATUS FOR ENCAPSULATING ENCODED MEDIA DATA IN A MEDIA FILE 有权

    公开(公告)号：US20220337846A1

    公开(公告)日：2022-10-20

    申请号：US17718072

    申请日：2022-04-11

    Applicant: CANON KABUSHIKI KAISHA

    Inventor： Naël OUEDRAOGO ,  Franck DENOUAL ,  Frédéric MAZE ,  Hervé RUELLAN ,  Lionel TOCZE

    IPC: H04N19/172 ,  H04N19/184 ,  H04N19/169

    Abstract: The present invention concerns a method of encapsulating subpicture bitstreams in at least one media file, the subpicture bitstreams corresponding to encoded media data of a subpicture corresponding to a rectangular region of video data, the method comprising: obtaining the plurality of subpicture bitstreams; encapsulating each subpicture bitstream in a subpicture track; generating at least one base track referencing at least two subpicture tracks and forming a spatial arrangement of the at least two subpicture tracks; generating information describing APS referenced by samples of the at least two subpicture tracks; encapsulating the subpicture tracks, the at least one base track and the information describing APS in the at least one media file.

    METHOD AND APPARATUS FOR ENCAPSULATING DERIVED TRACKS
    17.
    发明申请
    METHOD AND APPARATUS FOR ENCAPSULATING DERIVED TRACKS 有权

    公开(公告)号：US20220159352A1

    公开(公告)日：2022-05-19

    申请号：US17438655

    申请日：2020-03-04

    Applicant: CANON KABUSHIKI KAISHA

    Inventor： Frédéric MAZE ,  Franck DENOUAL

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

    Abstract: The present invention concerns method of generating a file of image data comprising samples, wherein the method comprises: generating a derived track comprising a derived track configuration data structure and derived samples, the derived track comprising a sequence of derivation operations to be applied on input data, each derivation operation comprising a list of references to input tracks and/or input items; wherein the derived track comprises an information indicating that one input track of a derivation operation is the output of the previous derivation operation in the sequence; and, generating the file comprising the derived track, and the input tracks and/or input items.

    METHOD, DEVICE, AND COMPUTER PROGRAM FOR ENCAPSULATING AND PARSING TIMED MEDIA DATA
    18.
    发明申请
    METHOD, DEVICE, AND COMPUTER PROGRAM FOR ENCAPSULATING AND PARSING TIMED MEDIA DATA 有权

    公开(公告)号：US20220070554A1

    公开(公告)日：2022-03-03

    申请号：US17475764

    申请日：2021-09-15

    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.

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