Abstract
lx'`yz$ -ze`{('IJ|l$g. p01G}=> !~E 3.1% o' k%g. AbstractIn this paper, we propose a novel residual differential pulse-code modulation (RDPCM) coding technique to improve coding efficiency of screen content videos. The proposed method uses a weighted combination of adjacent residues to provide an accurate estimate in RDPCM. The weights are trained in previously coded samples by using an L1 optimization problem with the least absolute shrinkage and selection operation (LASSO). The proposed method achieves BD-rate saving about 3.1% in all-intra coding. Keyword : HEVC, screen content video coding, RDPCM
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