Method and apparatus for encoding three-dimensional (3d) content

Abstract

Disclosed is a method of encoding three-dimensional (3D) content. The method of encoding 3D content according to an embodiment may include setting a dependency between texture information and depth information of the 3D content, and generating a bitstream comprising the dependency.

1 . A method of adaptive streaming service performed by a server or multiple servers, the method comprising:
 receiving a request, from a client, for a segment of a media content based on metadata of the media content, wherein the metadata is a Media Presentation Description (MPD), and wherein the MPD is a description of a media presentation related to the media content; and   providing the media content based on the request,   wherein the MPD includes at least one period,   wherein each period includes at least one adaptation set comprising a media content component,   wherein each adaptation set includes at least one representation,   wherein each representation includes at least one segment, and   wherein the MPD provides information that enables the client to switch from one representation to another representation to adapt to a network condition.   
     
     
         2 . The method of  claim 1 , wherein one or more segments of a representation in the MPD is requested by the client based on specific selection by a user. 
     
     
         3 . The method of  claim 2 , wherein the representation is related to a text media component. 
     
     
         4 . The method of  claim 1 , wherein one representation is switched to another representation at a random access point. 
     
     
         5 . The method of  claim 1 , wherein the adaptation set includes at least one of a bandwidth attribute, a width attribute, a height attribute, and a frame rate attribute associated with at least one representation included in the adaptation set. 
     
     
         6 . The method of  claim 1 , wherein an element of the media content component includes at least one of (i) an “Accessibility” element related to information about an accessibility scheme, (ii) a “Role” element related to information about a role annotation scheme, (iii) a “Rating” element related to information about a rating scheme, and (iv) a “Viewpoint” element related to information about a viewpoint annotation scheme. 
     
     
         7 . The method of  claim 1 , wherein an element of the adaptation set comprises at least one of:
 (i) a ContentType attribute which is a media content component type of the adaptation set,   (ii) a par attribute which is a picture aspect ratio,   (iii) a minBandWidth attribute which is a minimum bandwidth attribute value of all representations within the adaptation set,   (iv) a maxBandWidth attribute which is a maximum bandwidth attribute value of all representations within the adaptation set,   (v) a minWidth attribute which is a minimum width attribute value of all representations within the adaptation set,   (vi) a maxWidth attribute which is a maximum width attribute value of all representations within the adaptation set,   (vii) a minHeight attribute which is a minimum height attribute value of all representations within the adaptation set,   (viii) a maxHeight attribute which is a maximum height attribute value of all representations within the adaptation set,   (ix) a minFrameRate attribute which is a minimum frame rate attribute value of all representations within the adaptation set, and   (x) a maxFrameRate attribute which is a maximum frame rate attribute value of all representations within the adaptation set.   
     
     
         8 . The method of  claim 1 , wherein the MPD provides information that enables the client to select a representation, wherein the representation is ignored by the client based on a user's selection. 
     
     
         9 . A server, comprising:
 one or more processors configured to:   receive a request, from a client, for a segment of a media content based on metadata of the media content, wherein the metadata is a Media Presentation Description (MPD), and wherein the MPD is a description of a media presentation related to the media content; and   provide the media content based on the request,   wherein the MPD includes at least one period,   wherein each period includes at least one adaptation set comprising a media content component,   wherein each adaptation set includes at least one representation,   wherein each representation includes at least one segment, and   wherein the MPD provides information that enables the client to switch from one representation to another representation to adapt to a network condition.   
     
     
         10 . The method of  claim 9 , wherein one or more segments of a representation in the MPD is requested by the client based on specific selection by a user. 
     
     
         11 . The method of  claim 10 , wherein the representation is related to a text media component. 
     
     
         12 . The method of  claim 9 , wherein one representation is switched to another representation at a random access point. 
     
     
         13 . The method of  claim 9 , wherein the adaptation set includes at least one of a bandwidth attribute, a width attribute, a height attribute, and a frame rate attribute associated with at least one representation included in the adaptation set. 
     
     
         14 . The method of  claim 9 , wherein an element of the media content component includes at least one of (i) an “Accessibility” element related to information about an accessibility scheme, (ii) a “Role” element related to information about a role annotation scheme, (iii) a “Rating” element related to information about a rating scheme, and (iv) a “Viewpoint” element related to information about a viewpoint annotation scheme. 
     
     
         15 . The method of  claim 9 , wherein an element of the adaptation set comprises at least one of:
 (i) a ContentType attribute which is a media content component type of the adaptation set,   (ii) a par attribute which is a picture aspect ratio,   (iii) a minBandWidth attribute which is a minimum bandwidth attribute value of all representations within the adaptation set,   (iv) a maxBandWidth attribute which is a maximum bandwidth attribute value of all representations within the adaptation set,   (v) a minWidth attribute which is a minimum width attribute value of all representations within the adaptation set,   (vi) a maxWidth attribute which is a maximum width attribute value of all representations within the adaptation set,   (vii) a minHeight attribute which is a minimum height attribute value of all representations within the adaptation set,   (viii) a maxHeight attribute which is a maximum height attribute value of all representations within the adaptation set,   (ix) a minFrameRate attribute which is a minimum frame rate attribute value of all representations within the adaptation set, and   (x) a maxFrameRate attribute which is a maximum frame rate attribute value of all representations within the adaptation set.   
     
     
         16 . The method of  claim 9 , wherein the MPD provides information that enables the client to select a representation, wherein the representation is ignored by the client based on a user's selection. 
     
     
         17 . A method of adaptive streaming service performed by a client, the method comprising:
 transmitting a request, to a server or multiple servers, for a segment of a media content based on metadata of the media content, wherein the metadata is a Media Presentation Description (MPD), and wherein the MPD is a description of a media presentation related to the media content; and   receiving the media content, based on the request, from the server or multiple servers,   wherein the MPD includes at least one period,   wherein each period includes at least one adaptation set comprising a media content component,   wherein each adaptation set includes at least one representation,   wherein each representation includes at least one segment, and   wherein the MPD provides information that enables the client to switch from one representation to another representation to adapt to a network condition.   
     
     
         18 . The method of  claim 17 , wherein one or more segments of a representation in the MPD is requested by the client based on specific selection by a user. 
     
     
         19 . The method of  claim 18 , wherein the representation is related to a text media component. 
     
     
         20 . The method of  claim 17 , wherein one representation is switched to another representation at a random access point. 
     
     
         21 . The method of  claim 17 , wherein the adaptation set includes at least one of a bandwidth attribute, a width attribute, a height attribute, and a frame rate attribute associated with at least one representation included in the adaptation set. 
     
     
         22 . The method of  claim 17 , wherein an element of the media content component includes at least one of (i) an “Accessibility” element related to information about an accessibility scheme, (ii) a “Role” element related to information about a role annotation scheme, (iii) a “Rating” element related to information about a rating scheme, and (iv) a “Viewpoint” element related to information about a viewpoint annotation scheme. 
     
     
         23 . The method of  claim 17 , wherein an element of the adaptation set comprises at least one of:
 (i) a ContentType attribute which is a media content component type of the adaptation set,   (ii) a par attribute which is a picture aspect ratio,   (iii) a minBandWidth attribute which is a minimum bandwidth attribute value of all representations within the adaptation set,   (iv) a maxBandWidth attribute which is a maximum bandwidth attribute value of all representations within the adaptation set,   (v) a minWidth attribute which is a minimum width attribute value of all representations within the adaptation set,   (vi) a maxWidth attribute which is a maximum width attribute value of all representations within the adaptation set,   (vii) a minHeight attribute which is a minimum height attribute value of all representations within the adaptation set,   (viii) a maxHeight attribute which is a maximum height attribute value of all representations within the adaptation set,   (ix) a minFrameRate attribute which is a minimum frame rate attribute value of all representations within the adaptation set, and   (x) a maxFrameRate attribute which is a maximum frame rate attribute value of all representations within the adaptation set.   
     
     
         24 . The method of  claim 17 , wherein the MPD provides information that enables the client to select a representation, wherein the representation is ignored by the client based on a user's selection.