DETERMINING INTRA-FRAME PREDICTION MODE OF IMAGE CODING UNIT AND IMAGE DECODING UNIT Russian patent published in 2016 - IPC H04N19/105 H04N19/593 H04N19/186 H04N19/91 

Abstract RU 2595950 C2

FIELD: computer engineering.

SUBSTANCE: invention relates to computer engineering. Device for image decoding comprises entropy decoder, receiving first information, which indicates internal prediction mode of luminance unit, and second information, which indicates internal prediction mode of chroma unit, corresponding to luminance unit from bit stream; and tool for internal prediction execution, which performs internal prediction with respect to luminance unit according to internal prediction mode of luminance unit, and with respect to chroma unit according to internal prediction mode of chroma unit, wherein tool for internal prediction execution determines quantity of adjacent pixels to be obtained according to current pixel position and specific direction, indicated by internal prediction mode of luminance unit, and obtains prediction value of current pixel based on said adjacent pixel, if number of adjacent pixels is equal to 1, and obtains prediction value of current pixel based on weighted average of adjacent pixels, if number of adjacent pixels is equal to 2.

EFFECT: technical result consists in improving efficiency of prediction image without increasing throughput.

1 cl, 36 dwg, 4 tbl

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RU 2 595 950 C2

Authors

Min Dzung-Khie

Alshina Elena

Khan Voo-Dzin

Dates

2016-08-27Published

2011-04-05Filed