Method and apparatus for random access of 3D(AR) media
AssigneeSamsung Electronics Co., Ltd.
InventorsEric Ho Ching Yip, Hyunkoo Yang, Jaeyeon Song
Life of this patent
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Abstract
A method of accessing 3D media content based on perspective-based random access is provided. The method includes receiving the media content and metadata, wherein the metadata includes first information about a perspective and second information about at least one face onto which the 3D object is projected, and the at least one face is associated with the perspective, and performing the perspective-based random access for the media content based on the first information and the second information.
Claims16
A method for providing media content including a three-dimensional (3D) object for perspective-based random access by an apparatus of a content provider, the method comprising:
- determining perspectives for the 3D object
- selecting a geometry to surround the 3D object from a geometry list based on the determined perspectives;
- assigning at least one face of the selected geometry to each perspective;
- generating metadata for the media content, wherein the metadata includes first information on the perspectives and second information on at least one face onto which the 3D object is projected;
- and
- transmitting the media content and the metadata,
- wherein points of the 3D object are assigned to the at least one face.
A method for accessing media content including a three-dimensional (3D) object based on a perspective-based random access by an apparatus of a user, the method comprising:
- receiving the media content and metadata, wherein the metadata includes first information on perspectives for the 3D object and second information on at least one face onto which the 3D object is projected, and wherein the at least one face is associated with each perspective;
- identifying the perspectives for the 3D object and a geometry to surround the 3D object based on the first information and the second information;
- and
- performing decoding and rendering for the media content based on the identified perspectives and the geometry,
- wherein the geometry is selected from a geometry list based on the perspectives, and
- wherein points of the 3D object are assigned to the at least one face.
An apparatus of a content provider for providing media content including a three-dimensional (3D) object for perspective-based random access, the apparatus comprising:
- a transceiver;
- and
- at least one processor configured to:
- determine perspectives for the 3D object,
- select a geometry to surround the 3D object from a geometry list based on the determined perspectives,
- assign at least one face of the selected geometry to each perspective,
- generate metadata for the media content, wherein the metadata includes first information on the perspectives and second information on at least one face onto which the 3D object is projected, and
- control the transceiver to transmit the media content and the metadata, wherein points of the 3D object are assigned to the at least one face.
An apparatus of a user for accessing media content including a three-dimensional (3D) object based on perspective-based random access, the apparatus comprising:
- a transceiver;
- and
- at least one processor configured to:
- control the transceiver to receive the media content and metadata, wherein the metadata includes first information on perspectives for the 3D object and second information on at least one face onto which the 3D object is projected, and wherein the at least one face is associated with each perspective,
- identify the perspectives for the 3D object and a geometry to surround the 3D object based on the first information and the second information, and
- perform decoding and rendering for the media content based on the identified perspectives and the geometry,
- wherein the geometry is selected from a geometry list based on the perspectives, and
- wherein points of the 3D object are assigned to the at least one face.
Dependencies are inferred from the claim text.