Efficiency FGST framework employing higher quality reference frames
AssigneeKoninklijke Philips Electronics N.V.
InventorMihaela Van Der Schaar
Life of this patent
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Abstract
A method and apparatus for coding video includes constructing motion-compensated extended reference frames from at least portions of temporal residual image frames. The motion-compensated extended reference frames are used for bi-directionally and/or uni-directionally predicting additional levels of FGS motion-compensated residual image or temporal frames.
Claims32
A method of coding video, comprising the steps of:
- constructing motion-compensated extended reference frames from at least portions of first level motion-compensated residual image frames;
- predicting a second level of motion-compensated residual image frames from the motion-compensated extended reference frames and the video;
- and
- fine granular scalable coding the second level motion-compensated residual image frames into a data-stream of temporal frames.
A method of coding a video signal, comprising the steps of:
- constructing motion-compensated extended reference frames from at least portions of first level motion-compensated residual image frames;
- predicting a second level of motion-compensated residual image frames from the motion-compensated extended reference frames and the video;
- and
- fine granular scalable coding the second level motion-compensated residual image frames into a data-stream of temporal frames.
An apparatus for coding video, comprising:
- means for constructing motion-compensated extended reference frames from at least portions of first level motion-compensated residual image frames;
- means for predicting a second level of motion-compensated residual image frames from the motion-compensated extended reference frames and the video;
- and
- means for fine granular scalable coding the second level motion-compensated residual image frames into a data-stream of temporal frames.
A memory medium for coding video, comprising:
- code for constructing motion-compensated extended reference frames from at least portions of first level motion-compensated residual image frames;
- code for predicting a second level of motion-compensated residual image frames from the motion-compensated extended reference frames and the video;
- and
- code for fine granular scalable coding the second level motion-compensated residual image frames into a data-stream of temporal frames.
A method of decoding a base layer data-stream and an enhancement layer data-stream, which collectively represent a video, comprising the steps of:
- constructing motion-compensated extended references from at least portions of first level motion-compensated residual image frames;
- fine granular scalable decoding a second level temporal frame portion of the enhancement layer data-stream to construct second level of motion-compensated residual frames;
- combining the motion-compensated extended reference frames with the second level motion-compensated residual frames to construct second level temporal frames.
An apparatus for decoding a base layer data-stream and an enhancement layer data-stream, which collectively represent a video, comprising:
- means for constructing motion-compensated extended references from at least portions of first level motion-compensated residual image frames;
- means for fine granular scalable decoding a second level temporal frame portion of the enhancement layer data-stream to construct second level of motion-compensated residual frames;
- means for combining the motion-compensated extended reference frames with the second level motion-compensated residual frames to construct second level temporal frames.
A memory medium for decoding a base layer data-stream and an enhancement layer data-stream, which collectively represent a video, comprising:
- code for constructing motion-compensated extended references from at least portions of first level motion-compensated residual image frames;
- code for fine granular scalable decoding a second level temporal frame portion of the enhancement layer data-stream to construct second level of motion-compensated residual frames;
- code for combining the motion-compensated extended reference frames with the second level motion-compensated residual frames to construct second level temporal frames.
Dependencies are inferred from the claim text.