US 11,677,967 B2
Scalable video coding system with parameter signaling
Koohyar Minoo, San Diego, CA (US); Zhouye Gu, San Diego, CA (US); David M. Baylon, San Diego, CA (US); and Ajay Luthra, San Diego, CA (US)
Assigned to ARRIS Enterprises LLC, Suwanee, GA (US)
Filed by ARRIS Enterprises LLC, Suwanee, GA (US)
Filed on Apr. 21, 2016, as Appl. No. 15/135,500.
Claims priority of provisional application 62/150,476, filed on Apr. 21, 2015.
Prior Publication US 2016/0316215 A1, Oct. 27, 2016
Int. Cl. H04N 19/30 (2014.01); H04N 19/17 (2014.01); H04N 19/18 (2014.01); H04N 19/186 (2014.01); H04N 19/132 (2014.01); H04N 19/187 (2014.01); H04N 19/467 (2014.01); H04N 19/117 (2014.01); H04N 19/176 (2014.01); H04N 19/44 (2014.01)
CPC H04N 19/30 (2014.11) [H04N 19/117 (2014.11); H04N 19/132 (2014.11); H04N 19/17 (2014.11); H04N 19/176 (2014.11); H04N 19/186 (2014.11); H04N 19/187 (2014.11); H04N 19/44 (2014.11); H04N 19/467 (2014.11)] 2 Claims
OG exemplary drawing
 
1. A method of decoding a digital video signal, comprising:
receiving in a video decoder a bitstream containing the digital video signal, the bitstream comprising a base layer and an enhancement layer;
receiving one or more sets of parameters, each associated with a respective one of a plurality of sub-pictures in the bitstream, each of the subpictures having a different spatial position within a picture relative to other said subpictures;
decoding base layer values in a first color space in said base layer;
within each of the sub-pictures, performing a reverse color mapping operation on said base layer values within each respective subpicture using the set of parameters respectively associated with the respective sub-picture, to generate a reconstructed reference picture having values in a second color space wider than said first color space, wherein said reverse color mapping operation for each respective subpicture maps a color in the first color space of the base layer to a color in the second color space of the base layer, wherein the mapping of a color in the first color space to a color in the second color space differs between at least two of the plurality of sub-pictures; and
decoding enhancement layer values in said second color space in said enhancement layer using prediction based on said reconstructed reference picture and providing the decoder output to a video player; wherein
the decoding of the enhancement layer comprises decoding a current sub-picture with reference to the re-mapped sub-pictures output.