Method for indicating coding order in multi-view video coded content
There are provided methods and apparatus for improved signaling using high level syntax for multi-view video coding and decoding. An apparatus includes an encoder for encoding at least one picture for at least one view corresponding to multi-view video content in a resultant bitstream, wherein said encoder signals video coding order information for at least the at least one picture in a high level syntax.
1. In a video decoder, a method for decoding multi-view video content, comprising:
receiving a bitstream having said multi-view video content and high level syntax information;
decoding a parameter, in said high level syntax information, representing a total number of coded views in the bitstream minus one;
determining a view identifier and decoding order of a view within said multi-view video content from a parameter view_id[i] in said high level syntax information, wherein the decoding order of said view is indicated by the index i, and said view_id[i] explicitly signals said view identifier of said view within said multi-view video content, wherein index i ranges from 0 to the total number of coded views minus one, and wherein said view_id[i] is an index other than the index i;
determining, using said decoding order as index, inter-view references needed for decoding said view; and
decoding said view within said multi-view video content responsive to said decoding order and said inter-view references.
2. The method of claim 1 , wherein the view identifier for each of a plurality of views of said multi-view video content is assigned such that gaps are allowed between consecutive view identifiers.
3. The method of claim 1 , wherein the decoding order of said view is unique.
4. The method of claim 1 , wherein the view represented by the view identifier view_id[i] is the ith view in the decoding order.
5. An apparatus, comprising:
at least a memory and one or more processors coupled to said at least one memory, wherein the one or more processors are configured to:
receive a bitstream having said multi-view video content and high level syntax information;
decode a parameter, in said high level syntax information, representing a total number of coded views in the bitstream minus one;
determine a view identifier and decoding order of a view within said multi-view video content from a parameter view_id[i] in said high level syntax information, wherein the decoding order of said view is indicated by the index i, and said view_id[i] explicitly signals said view identifier of said view within said multi-view video content, wherein index i ranges from 0 to the total number of coded views minus one, and wherein said view_id[i] is an index other than the index i;
determine, using said decoding order as index, inter-view references needed for decoding said view; and
decode said view within said multi-view video content responsive to said decoding order and said inter-view references.
6. The apparatus of claim 5 , wherein the view identifier for each of a plurality of views of said multi-view video content is assigned such that gaps are allowed between consecutive view identifiers.
7. The apparatus of claim 5 , wherein the decoding order of said view is unique.
8. The apparatus of claim 5 , wherein the view represented by the view identifier view_id[i] is the ith view in the decoding order.
9. A non-transitory storage medium having thereon an encoded bitstream, the encoded bitstream comprising:
an encoded picture section including an encoding of a view of multi-view video content;
a first signaling section including an encoding of a parameter representing a total number of coded views in the bitstream minus one;
a second signaling section including an encoding of a parameter view_id[i] in high level syntax information, wherein a view identifier and a decoding order of said view within said multi-view video content are indicated using said parameter view_id[i], wherein the decoding order of said view is indicated by the index i, and said view_id[i] explicitly signals a view identifier of said view within said multi-view video content, wherein index i ranges from 0 to the total number of coded views minus one, and wherein said view_id[i] is an index other than the index i; and
a third signaling section including an encoding of parameters indicating inter-view references, using said decoding order as index, needed for decoding said view.
10. The storage medium of claim 9 , wherein the view identifier for each of a plurality of views of said multi-view video content is assigned such that gaps are allowed between consecutive view identifiers.
11. The storage medium of claim 9 , wherein the decoding order of said view is unique.
12. The storage medium of claim 9 , wherein the view represented by the view identifier view_id[i] is the ith view in the decoding order.