US 12,273,543 B2
Apparatuses, methods, computer programs and computer-readable media
Ivan Damnjanovic, London (GB); and Gaurav Mittal, London (GB)
Assigned to V-NOVA INTERNATIONAL LIMITED, London (GB)
Filed by V-NOVA INTERNATIONAL LIMITED, London (GB)
Filed on Dec. 19, 2023, as Appl. No. 18/545,041.
Application 18/545,041 is a continuation of application No. 17/342,792, filed on Jun. 9, 2021, granted, now 11,856,210.
Application 17/342,792 is a continuation of application No. 16/252,357, filed on Jan. 18, 2019, granted, now 11,039,154, issued on Jun. 15, 2021.
Application 16/252,357 is a continuation of application No. PCT/GB2017/052141, filed on Jul. 20, 2017.
Claims priority of application No. 1612583 (GB), filed on Jul. 20, 2016.
Prior Publication US 2024/0397068 A1, Nov. 28, 2024
Int. Cl. H04N 19/30 (2014.01); H04N 19/12 (2014.01); H04N 19/122 (2014.01); H04N 19/132 (2014.01); H04N 19/136 (2014.01); H04N 19/146 (2014.01); H04N 19/16 (2014.01); H04N 19/176 (2014.01); H04N 19/18 (2014.01); H04N 19/33 (2014.01)
CPC H04N 19/30 (2014.11) [H04N 19/12 (2014.11); H04N 19/122 (2014.11); H04N 19/132 (2014.11); H04N 19/136 (2014.11); H04N 19/146 (2014.11); H04N 19/16 (2014.11); H04N 19/176 (2014.11); H04N 19/18 (2014.11); H04N 19/33 (2014.11)] 20 Claims
OG exemplary drawing
 
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 set of reconstruction elements,
the set of reconstruction elements being useable to reconstruct a representation of a signal at a first level of quality using data based on a representation of the signal at a second level of quality, the first level of quality being higher than the second level of quality,
the set of reconstruction elements being arranged as an array comprising at least first and second rows,
wherein each row is associated with a different portion of the signal;
derive a first set of data elements from the set of reconstruction elements,
the first set of data elements being derived using a matrix multiplication that is applied to the set of reconstruction elements, the matrix multiplication involving a transformation matrix,
at least one data element in the set of data elements being derived from a plurality of reconstruction elements in the set of reconstruction elements,
wherein application of the matrix multiplication results in a weighting of reconstruction elements associated with signal elements from different rows; and
provide at least the first set of data elements and a representation of the signal derived from the representation of the signal at the second level of quality for use in reconstructing the representation of the signal at the first level of quality.