Upsampling in a tiered signal quality hierarchy

Computer-readable storage hardware having instructions stored thereon, the instructions, when carried out by a processing device, causing the processing device to perform operations of:

• selecting an element from a rendition of the signal at a first level of quality to upsample into multiple elements of a rendition of the signal at a second level of quality, the second level of quality being higher than the first level of quality;
• producing a metric based on settings of elements in a vicinity of the selected element in the rendition of the signal at the first level of quality, the metric defining a boundary between a first set of elements in a vicinity of the selected element and a second set of elements in a vicinity of the selected element;
• and
• utilizing the metric to calculate settings for the multiple elements in the signal at the second level of quality.

A computer system comprising:

• a processor;
• a memory unit that stores instructions associated with an application executed by the processor;
• and
• an interconnect coupling the processor and the memory unit, enabling the computer system to execute the application and perform operations of:
• selecting an element from a rendition of the signal at a first level of quality to upsample into multiple elements of a rendition of the signal at a second level of quality, the second level of quality being higher than the first level of quality;
• producing a metric based on settings of elements in a vicinity of the selected element in the rendition of the signal at the first level of quality, the metric defining a boundary between a first set of elements in a vicinity of the selected element and a second set of elements in a vicinity of the selected element;
• and
• utilizing the metric to calculate settings for the multiple elements in the signal at the second level of quality.