Method and apparatus for palette predictor initialization for palette coding in video and image compression
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United States of America Patent
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Oct 27, 2020
Grant Date -
Jan 25, 2018
app pub date -
Feb 15, 2016
filing date -
Feb 16, 2015
priority date (Note) -
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Abstract
A method and apparatus of palette predictor initialization for a coding system using palette coding are disclosed. A SPS predictor flag indicating whether SPS palette predictor values are present in a current SPS and a PPS predictor flag indicating whether SPS palette predictor values are present in a current PPS are used. According to the values of the SPS predictor flag and the PPS predictor flag, the current palette predictor array having a current predictor size for blocks in a picture corresponding to the current PPS is signaled at an encoder side or derived at a decoder side based on the PPS palette predictor values, the SPS palette predictor values or both.
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