IMPROVED ENCODING PROCESS USING PALETTE MODE Russian patent published in 2019 - IPC H04N19/182 H04N19/186 H04N19/70 

FIELD: computer equipment.

SUBSTANCE: invention relates to the computer equipment. Disclosed is a method for decoding a current block of pixels in an image from a bitstream, in which block of indexes, escaped pixel values and a palette are obtained, wherein the palette contains a set of entries associating respective entry indexes with corresponding pixel values, and the escaped pixel values contain pixel values for pixels that have no corresponding index in said block of indexes that are associated with a pixel value in the palette; and forming a decoded current block of pixels from the block of indexes, the escaped pixel values and the palette; wherein obtaining the block of indexes comprises: obtaining, from the bitstream, syntax elements for generating groups of indexes having successive block positions in the block of indexes; generating the indexes of the block of indexes based on the syntax elements, wherein the obtained syntax elements include a flag that indicates whether the series in the current the group of indexes is the last one and whether it has indexes at all remaining block positions up to the end of the block of indexes, regardless of the number of remaining block positions.

EFFECT: improved encoding process using a palette mode.

14 cl, 21 dwg