Upsampling and downsampling of motion maps and other auxiliary maps in a tiered signal quality hierarchy

摘要

Certain configurations herein include changing the resolution of an auxiliary map (e.g., a motion map, a z-map, etc.) at a first level of quality to obtain an auxiliary map at a second level of quality. For example, changing the resolution can include receiving a respective auxiliary map of one or more vectors at one or more lower levels of quality and progressively refining, via novel operations, the auxiliary map to higher or lower levels of quality in a hierarchy.

主权项

1. An image processing method of generating a signal encoded at multiple different levels of quality within a hierarchy, the image processing method comprising:
selecting an element from a rendition of an auxiliary map at a first level of quality in the hierarchy; subdividing the selected element in the auxiliary map at the first level of quality into multiple sub-elements of an auxiliary map at a second level of quality in the hierarchy, the second level of quality higher than the first level of quality; and based at least in part on auxiliary information assigned to at least one element in the auxiliary map at the first level of quality, generating in the auxiliary map at the second level of quality respective auxiliary information for each of the sub-elements at the second level of quality, the auxiliary information in the auxiliary map at the second level of quality for each of the sub-elements specifying motion at a higher resolution than a resolution of the sub-elements in the auxiliary map at the second level of quality.