Patent ID: 11962805
Assignee: V-NOVA INTERNATIONAL LIMITED
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. An apparatus comprising:
at least one processor; and
non-transitory system memory having stored thereon computer-executable instructions which, when executed by the at least one processor, cause the apparatus to perform the following:
obtain a first plurality of residual elements useable to reconstruct a first part of a first representation of a signal at a relatively high level of quality using a first part of a second representation of the signal at the relatively high level of quality, the first part of the second representation being derivable from a first set of one or more signal elements in a representation of the signal at a relatively low level of quality;
obtain a second plurality of residual elements useable to reconstruct a second, different part of the first representation of the signal using a second, different part of the second representation of the signal, the second part of the second representation being derivable from a second, different set of one or more signal elements in the representation of the signal at the relatively low level of quality; and
perform at least one transformation operation involving at least one residual element in the first plurality of residual elements and at least one residual element in the second plurality of residual elements to generate a plurality of correlation elements, the plurality of correlation elements being dependent on an extent of correlation between the first plurality of residual elements and the second plurality of residual elements,
wherein the at least one transformation operation is performed prior to the plurality of correlation elements being encoded,
wherein the at least one transformation operation implements at least one matrix multiplication, and
wherein the at least one matrix multiplication implements a first transformation operation applied to the first plurality of residual elements and the second plurality of residual elements and a second transformation operation applied to a result of the first transformation.