Back to results
US 11,706,410 B2Granted
Methods and systems for combined lossless and lossy coding
AssigneeOP Solutions, LLC
InventorsHari Kalva, Borivoje Furht, Velibor Adzic
Life of this patent
Estimating the term…
Abstract
A decoder includes circuitry configured to receive a bitstream identify, in the bitstream, a current frame, wherein the current frame includes a first region and a third region, detect, in the bitstream, an indication that the first region is encoded according to a lossless 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.
Claims8
A decoder, the decoder comprising circuitry configured to:
- receive, in a bitstream, a coded picture, the picture comprising a first region, a second region, and a third region, wherein the first region is a first independently coded sub-picture and includes a first group of one or more coding tree units, the second region is a second independently coded subpicture and includes a second group of one or more coding tree units and the third region is the remainder of the picture and includes a third group of coding tree units;
- detect, in the bitstream, that the first region is encoded using block differential pulse code modulation;
- detect, in the bitstream, that the second region is encoded using transform skip mode but not block differential pulse code modulation;
- and
- detect, in the bitstream, that the third region is encoded using lossy encoding, wherein the lossy encoding includes at least one of inter-prediction or intra-prediction, discrete cosine transform of residual pixel values, and quantization of transform coefficients.
2 more elements
A method of combined lossless and lossy decoding, the method comprising:
- receiving, by a decoder comprising circuitry, in a bitstream, a coded picture, the picture comprising a first region, a second region, and a third region, wherein the first region is a first independently coded sub-picture and includes a first group of one or more coding tree units, the second region is a second independently coded subpicture and includes a second group of one or more coding tree units and the third region is the remainder of the picture and includes a third group of coding tree units;
- detecting, by the decoder and in the bitstream, that the first region is encoded using block differential pulse code modulation;
- detecting, by the decoder and in the bitstream, that the second region is encoded using transform skip mode but not block differential pulse code modulation;
- and
- detecting, by the decoder and in the bitstream, that the third region is encoded using lossy encoding, wherein the lossy encoding includes at least one of inter-prediction or intra-prediction, discrete cosine transform of residual pixel values, and quantization of transform coefficients.
2 more elements
A decoder, the decoder comprising circuitry configured to:
- receive, in a bitstream, a coded picture, the picture comprising a first region, a second region, and a third region, wherein the first region comprises a first plurality of coding units, the second region comprises a second plurality of coding units and the third region comprises the remainder of the picture;
- detect, in the bitstream, that the first region is encoded using block differential pulse code modulation;
- detect, in the bitstream, that the second region is encoded using transform skip mode but not block differential pulse code modulation;
- and
- detect, in the bitstream, that the third region is encoded using lossy encoding, wherein the lossy encoding includes at least one of inter-prediction or intra-prediction, discrete cosine transform of residual pixel values, and quantization of transform coefficients.
2 more elements
A video encoder configured to:
- encode a bitstream for decoding by a decoder;
- the decoder comprising circuitry configured to:
- receive, in a bitstream, a coded picture, the picture comprising a first region, a second region, and a third region, wherein the first region is a first independently coded sub-picture and includes a first group of one or more coding tree units, the second region is a second independently coded subpicture and includes a second group of one or more coding tree units and the third region is the remainder of the picture and includes a third group of coding tree units;
- detect, in the bitstream, that the first region is encoded using block differential pulse code modulation;
- detect, in the bitstream, that the second region is encoded using transform skip mode but not block differential pulse code modulation;
- and
- detect, in the bitstream, that the third region is encoded using lossy encoding, wherein the lossy encoding includes at least one of inter-prediction or intra-prediction, discrete cosine transform of residual pixel values, and quantization of transform coefficients.
4 more elements
A video encoder configured to:
- encode a bitstream for decoding by a decoder;
- the decoder comprising circuitry configured to:
- receive, in a bitstream, a coded picture, the picture comprising a first region, a second region, and a third region, wherein the first region comprises a first plurality of coding units, the second region comprises a second plurality of coding units and the third region comprises the remainder of the picture;
- detect, in the bitstream, that the first region is encoded using block differential pulse code modulation;
- detect, in the bitstream, that the second region is encoded using transform skip mode but not block differential pulse code modulation;
- and
- detect, in the bitstream, that the third region is encoded using lossy encoding, wherein the lossy encoding includes at least one of inter-prediction or intra-prediction, discrete cosine transform of residual pixel values, and quantization of transform coefficients.
4 more elements
Dependencies are inferred from the claim text.