US 12,219,160 B2
Decoder devices, methods and computer programs
Guido Meardi, London (GB); Simone Ferrara, 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 Jan. 30, 2023, as Appl. No. 18/161,721.
Application 18/161,721 is a continuation of application No. 17/173,941, filed on Feb. 11, 2021, granted, now 11,570,454.
Application 17/173,941 is a continuation in part of application No. 16/252,362, filed on Jan. 18, 2019, granted, now 11,277,625, issued on Mar. 15, 2022.
Application 16/252,362 is a continuation of application No. PCT/GB2017/052142, filed on Jul. 20, 2017.
Claims priority of application No. 1612585 (GB), filed on Jul. 20, 2016; and application No. 2001926 (GB), filed on Feb. 12, 2020.
Prior Publication US 2023/0336755 A1, Oct. 19, 2023
Int. Cl. H04N 19/30 (2014.01); A61B 90/00 (2016.01); G16H 30/20 (2018.01); G16H 40/67 (2018.01); H04N 5/76 (2006.01); H04N 7/025 (2006.01); H04N 7/08 (2006.01); H04N 19/167 (2014.01); H04N 19/40 (2014.01)
CPC H04N 19/30 (2014.11) [A61B 90/361 (2016.02); G16H 30/20 (2018.01); G16H 40/67 (2018.01); H04N 5/76 (2013.01); H04N 7/025 (2013.01); H04N 7/0806 (2013.01); H04N 19/167 (2014.11); H04N 19/40 (2014.11)] 18 Claims
OG exemplary drawing
 
1. Virtual reality equipment comprising a decoder device configured to:
receive data useable to generate first data for representing a data signal at a first level of quality;
receive enhancement data useable to generate data for representing the data signal at a second level of quality based on the first data for representing the data signal at the first level of quality, the second level of quality being higher than the first level of quality;
generate data for representing a target region of the data signal at a target level of quality using a selected portion of the received enhancement data, the selected portion of the received enhancement data being associated with the target region of the data signal, the target level of quality being higher than the first level of quality; and
generate data for representing a further region of the data signal at a level of quality lower than the target level of quality,
wherein the enhancement data is configured to correct differences between one or more values of one or more elements in the first data for representing the data signal at the first level of quality and one or more corresponding values of one or more elements in second data for representing the data signal at the first level of quality,
wherein the decoder device is configured to operate in accordance with a hierarchical data signal processing arrangement, the hierarchical data signal processing arrangement comprising a first layer having a first set of sub-layers and a second layer having a set of sub-layers, each sub-layer being associated with a respective level of quality, and
wherein the decoder device is configured to use enhancement data associated with at least one sub-layer of the first and second layers to generate the data for representing the target region of the data signal at the target level of quality in a third operating mode of the decoder device.