Method and apparatus for providing a multi-view still image service, and method and apparatus for receiving a multi-view still image service

A method of receiving a multiview still image service, the method comprising:

• receiving and parsing multiview still image data based on a multiview still image file format comprising a plurality of image areas;
• extracting 3D basic attribute information to three-dimensionally reproduce a multiview still image from a first image area of the plurality of image areas;
• and
• extracting main-view image information, from among a plurality of pieces of image information forming the multiview still image, from the first image area, and extracting remaining pieces of image information of the plurality of pieces of image information from remaining image areas of the plurality of image areas, respectively,
• wherein the main-view image information is inserted into the first image area,
• wherein the 3D basic attribute information includes information regarding a value of total viewpoints of the multiview still image, and the information regarding the value of total viewpoints of the multiview still image includes a total number of image area offset information, and
• wherein the first image area comprises encoded image data.

A multiview still image service providing apparatus comprising at least one hardware processor configured to implement:

• a multiview still image file format configuring unit which configures a multiview still image file format comprising a plurality of image areas;
• an image information inserting unit which inserts a plurality of pieces of image information corresponding to a multiview still image into the plurality of image areas, respectively;
• an attribute information inserting unit which inserts 3D basic attribute information to three-dimensionally reproduce the multiview still image into a first image area of the plurality of image areas;
• and
• an output unit which outputs multiview still image data comprising the plurality of pieces of image information based on the multiview still image file format,
• wherein main-view image information from among the plurality of pieces of image information is inserted into the first image area,
• wherein the 3D basic attribute information includes information regarding a value of total viewpoints of the multiview still image, and the information regarding the value of total viewpoints of the multiview still image includes a total number of image area offset information, and
• wherein the first image area comprises encoded image data.

A multiview still image service receiving apparatus comprising at least one hardware processor configured to implement:

• a receiving and parsing unit which receives and parses multiview still image data based on a multiview still image file format comprising a plurality of image areas;
• an attribute information extracting unit which extracts 3D basic attribute information to three-dimensionally reproduce a multiview still image from a first image area of the plurality of image areas;
• an image information extracting unit which extracts main-view image information, from among a plurality of pieces of image information forming the multiview still image, from the first image area, and extracts remaining pieces of image information from among the plurality of pieces of image information from remaining image areas of the plurality of image areas, respectively;
• and
• an image restoring unit which restores multiple view images that form the multiview still image, by using the extracted 3D basic attribute information and the plurality of pieces of extracted image information,
• wherein the main-view image information is inserted into the first image area,
• wherein the 3D basic attribute information includes information regarding a value of total viewpoints of the multiview still image, and the information regarding the value of total viewpoints of the multiview still image includes a total number of image area offset information, and
• wherein the first image area comprises encoded image data.

A method of providing a media file format-based multiview still image service, the method comprising:

• inserting at least one image data having a still image file format into a media data area of a media file format;
• inserting 3D metadata comprising information to three-dimensionally reproduce multiview still image data into a moov area, distinct from the media data area, of the media file format;
• and
• outputting the multiview still image data comprising a plurality of pieces of image information based on the media file format,
• wherein the still image file format is a format into which the plurality of pieces of image information corresponding to a multiview still image are inserted, and
• wherein 3D basic attribute information included in the media data area includes information regarding a value of total viewpoints of the multiview still image, and the information regarding the value of total viewpoints of the multiview still image includes a total number of image area offset information.

A method of receiving a media file format-based multiview still image service, the method comprising:

• receiving and parsing multiview still image data based on a media file format;
• extracting 3D metadata from a moov area of the media file format;
• extracting at least one image data that has a still image file format and comprises image information about multiple view images corresponding to a multiview still image, from a media data area, distinct from the moov area, of the media file format;
• and
• restoring the multiple view images corresponding to the multiview still image, by using the extracted 3D metadata and the plurality of pieces of extracted image information,
• wherein the 3D metadata comprises information to restore the multiple view images corresponding to the multiview still image and to three-dimensionally reproduce the multiple view images, and
• wherein 3D basic attribute information included in the media data area includes information regarding a value of total viewpoints of the multiview still image, and the information regarding the value of total viewpoints of the multiview still image includes a total number of image area offset information.