Inter-view prediction

1. A method, comprising:

accessing at least a portion of an encoded picture, the encoded picture being from a particular view of multiple views, and the portion being encoded at a resolution;

determining the resolution of the particular view for at least the portion from information identifying an assigned view level and a resolution corresponding to the view level; and

decoding at least the portion based on the determined resolution,

wherein the determining comprises identifying the resolution for the particular view based on a position of the view level in a scalability hierarchy, the position being indicated by a particular view level and the scalability hierarchy provides scalability at least by allowing that pictures from a given position in the scalability hierarchy to be used as an inter-view reference for pictures from a less important position in the scalability hierarchy and not to be used as a reference for pictures from a more important position in the scalability hierarchy, and resolution for a picture from a given position in the scalability hierarchy being as good as resolution for a picture from a less important position in the scalability hierarchy, and wherein inter-view reference pictures are downsampled from a higher resolution picture before being used as a reference for pictures from a less important position in the scalability hierarchy.

2. The method of claim 1 , wherein:

resolution for a picture from a given position in the scalability hierarchy is at least as good as resolution for a picture from a less important position in the scalability hierarchy.

3. The method of claim 1 , wherein the determining of the particular resolution comprises:

accessing an indicator from the information that indicates a view level position in a scalability hierarchy for the particular view; and

determining the particular resolution based on the view level position in the scalability hierarchy.

4. The method of claim 3 , wherein the encoded picture and the indicator are accessed from data formatted according to a particular video coding standard.

5. The method of claim 1 , further comprising:

accessing multiple encoded pictures, the multiple encoded pictures being from the particular view and being encoded at the particular resolution; and

decoding the multiple encoded pictures based on the particular resolution.

6. The method of claim 5 , wherein the multiple encoded pictures belong to one or more of a group of pictures, a scene, or a movie.

7. An apparatus, comprising:

a memory, and

a processor, configured to:

access at least a portion of an encoded picture, the encoded picture being from a particular view of multiple views, and the portion being encoded at a resolution;

determine the resolution of the particular view for at least the portion from information identifying an assigned view level and a resolution corresponding to the view level; and

decode at least the portion based on the determined resolution,

wherein the determining comprises identifying the resolution for the particular view based on a position of the view level in a scalability hierarchy, the position being indicated by a particular view level and the scalability hierarchy provides scalability at least by allowing that pictures from a given position in the scalability hierarchy to be used as an inter-view reference for pictures from a less important position in the scalability hierarchy and not to be used as a reference for pictures from a more important position in the scalability hierarchy, and resolution for a picture from a given position in the scalability hierarchy being as good as resolution for a picture from a less important position in the scalability hierarchy, and wherein inter-view reference pictures are downsampled from a higher resolution picture before being used as a reference for pictures from a less important position in the scalability hierarchy.