US 12,355,947 B1
Methods and systems for combined lossless and lossy coding
Hari Kalva, Boca Raton, FL (US); Borivoje Furht, Boca Raton, FL (US); and Velibor Adzic, Canton, GA (US)
Assigned to OP Solutions, LLC, Amherst, MA (US)
Filed by OP Solutions, LLC, Amherst, MA (US)
Filed on Feb. 26, 2024, as Appl. No. 18/586,961.
Application 18/586,961 is a continuation of application No. 17/840,026, filed on Jun. 14, 2022, granted, now 11,930,163.
This patent is subject to a terminal disclaimer.
Int. Cl. H04N 19/176 (2014.01); H03M 7/30 (2006.01); H04N 19/105 (2014.01); H04N 19/159 (2014.01); H04N 19/60 (2014.01)
CPC H04N 19/105 (2014.11) [H03M 7/3053 (2013.01); H03M 7/3059 (2013.01); H03M 7/6005 (2013.01); H04N 19/159 (2014.11); H04N 19/176 (2014.11); H04N 19/60 (2014.11); H03M 7/6011 (2013.01)] 8 Claims
OG exemplary drawing
 
1. An encoder configured to:
receive a video signal;
encode a bitstream for decoding by a compliant decoder, the decoder configured to:
receive the encoded bitstream including a header and a coded picture;
determine, using the header, a location of a first independently coded sub-picture in the coded picture and a location of a second independently coded sub-picture in the picture, the first sub-picture comprising a first plurality of CTUs in the picture and the second sub-picture comprising a second plurality of CTUs in the picture;
determine that the first sub-picture is coded using a lossless coding protocol;
decode the first sub-picture using the lossless coding protocol;
determine that the second sub-picture is coded using a lossy coding protocol; and
decode the second sub-picture using the lossy coding protocol.