Image data encapsulation with referenced description information
AssigneeCanon Kabushiki Kaisha
InventorsFranck Denoual, Frédéric Maze, Jean Le Feuvre, Cyril Concolato
Life of this patent
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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.
Claims28
A method of generating a still image file including a media data portion and a metadata portion, the metadata portion being different from the media data portion, the method comprising:
- obtaining identification information for each of media items, a first media item corresponding to a still image and a plurality of second media items corresponding to a plurality of partial areas in the still image;
- obtaining description information comprising parameters relating to the plurality of partial areas;
- obtaining association information for associating each identification information of the plurality of second media items with at least one parameter in the description information,
- obtaining item reference information which represents, by using the identification information, a reference between the first media item and the plurality of second media items, and
- generating the still image file including the identification information, the description information, the association information, and the item reference information in a ‘meta’ box of the metadata portion, and data of the plurality of partial areas of the still image in the media data portion.
A method of processing a still image file including a media data portion and a metadata portion, the metadata portion being different from the media data portion, the method comprising:
- obtaining, from the still image file, identification information for each of media items, a first media item corresponding to a still image and a plurality of second media items corresponding to a plurality of partial areas in the still image;
- obtaining, from the still image file, description information comprising parameters relating to the plurality of partial areas;
- obtaining, from the still image file, association information for associating each identification information of the plurality of second media items with at least one parameter in the description information, and
- obtaining, from the still image file, item reference information which represents, by using the identification information, a reference between the first media item and the plurality of second media items, and
- processing the still image file based on at least one of the identification information, the description information, the association information, and the item reference information.
A processing apparatus for generating a still image file including a media data portion and a metadata portion, the metadata portion being different from the media data portion, the processing apparatus comprising:
- at least one processor;
- and
- at least one memory storing executable instructions which, when executed by the at least one processor, cause the processing apparatus to perform operations including:
- obtaining identification information for each of media items, a first media item corresponding to a still image and a plurality of second media items corresponding to a plurality of partial areas in the still image;
- obtaining description information comprising parameters relating to the plurality of partial areas;
- obtaining association information for associating each identification information of the plurality of second media items with at least one parameter in the description information, and
- obtaining item reference information which represents, by using the identification information, a reference between the first media item and the plurality of second media items, and
- generating the still image file including the identification information, the description information, the association information, and the item reference information in a ‘meta’ box of the metadata portion, and data of the plurality of partial areas of the still image in the media data portion.
A processing apparatus for processing a still image file including a media data portion and a metadata portion, the metadata portion being different from the media data portion, the processing apparatus comprising:
- at least one processor;
- and
- at least one memory storing executable instructions which, when executed by the at least one processor, cause the processing apparatus to perform operations including:
- obtaining, from the still image file, identification information for each of media items, a first media item corresponding to a still image and a plurality of second media items corresponding to a plurality of partial areas in the still image;
- obtaining, from the still image file, description information comprising parameters relating to the plurality of partial areas;
- obtaining, from the still image file, association information for associating each identification information of the plurality of second media items with at least one parameter in the description information, and
- obtaining, from the still image file, item reference information which represents, by using the identification information, a reference between the first media item and the plurality of second media items;
- and
- processing the still image file based on at least one of the identification information, the description information, the association information, and the item reference information.
A non-transitory computer-readable storage medium storing computer executable instructions for causing a computer to execute a method of generating a still image file including a media data portion and a metadata portion, the metadata portion being different from the media data portion, the method comprising:
- obtaining identification information for each of media items, a first media item corresponding to a still image and a plurality of second media items corresponding to a plurality of partial areas in the still image;
- obtaining description information comprising parameters relating to the plurality of partial areas;
- obtaining association information for associating each identification information of the plurality of second media items with at least one parameter in the description information, and
- obtaining item reference information which represents, by using the obtained identification information, a reference between the first media item and the plurality of second media items;
- and
- generating the still image file including the identification information, the description information, the association information, and the item reference information in a ‘meta’ box of the metadata portion, and data of the plurality of partial areas of the still image in the media data portion.
A non-transitory computer-readable storage medium storing computer executable instructions for causing a computer to execute a method of processing a still image file including a media data portion and a metadata portion, the metadata portion being different from the media data portion, the method comprising:
- obtaining, from the still image file, identification information for each of media items, first media item being corresponding to a still image and a plurality of second media items being corresponding to a plurality of partial areas in the still image;
- obtaining, from the still image file, description information comprising parameters relating to the plurality of partial areas;
- obtaining, from the still image file, association information for associating each identification information of the plurality of second media items with at least one parameter in the description information, and
- obtaining, from the still image file, item reference information which represents, by using the identification information, a reference between the first media item and the plurality of second media items;
- and
- processing the still image file based on at least one of the identification information, the description information, the association information, and the item reference information.
Dependencies are inferred from the claim text.