CPC H04N 19/105 (2014.11) [H04N 19/159 (2014.11); H04N 19/176 (2014.11); H04N 19/196 (2014.11)] | 20 Claims |
1. A method comprising:
determining reference signals of a chroma block;
determining a decision rule from a bitstream, wherein the decision rule comprises comparing a coding parameter with a threshold;
determining, based on the decision rule, a chroma prediction model among one or more linear models and one or more non-linear models, wherein determining the chroma prediction model comprises:
determining, based on the decision rule, one or more candidate models from the one or more linear models and the one or more non-linear models; and
determining the chroma prediction model from the one or more candidate models;
generating a prediction of the chroma block based on the reference signals of the chroma block and the chroma prediction model; and
determining a reconstruction of the chroma block based on the prediction of the chroma block and a decoded residual of the chroma block.
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