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US 11,930,163 B2Granted
Methods and systems for combined lossless and lossy coding
AssigneeOP Solutions, LLC
InventorsHari Kalva, Borivoje Furht, Velibor Adzic
Life of this patent
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Abstract
A decoder includes circuitry configured to receive a bitstream identify, in the bitstream, a current frame, wherein the current frame includes a plurality of regions, detect, in the bitstream, an indication that a first region is encoded according to a lossless encoding protocol and another region is encoded according to a lossy encoding protocol, and decode the current frame, wherein decoding the current frame further comprises decoding the first region using a lossless decoding protocol corresponding to the lossless encoding protocol.
Claims3
A decoder configured to:
- receive a 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.
4 more elements
Dependencies are inferred from the claim text.