FIELD: information technologies.
SUBSTANCE: it is suggested to do coding and decoding uniformly for multiple colouration formats. Based on control signal providing for type of colouration format of inlet signal from dynamic image, if colouration format is 4:2:0 or 4:2:2, the first unit of prediction mode detection with intra-coding and the first unit of predication image coding with intra-coding are applied to component of dynamic image inlet signal colouration component, and the second unit of prediction mode detection with intra-coding and the second unit of prediction image formation with intra-coding are applied to colouration component. If colouration format is 4:4:4, the first unit of prediction mode detection with intra-coding and the first unit of prediction image formation with intra-coding are applied to all colour components to do coding, and unit of coding with alternating length multiplexes control signal as data of coding, which should be applied to element of dynamic image sequence in bitstream.
EFFECT: improved mutual compatibility between coded video data of various colouration formats.
12 cl, 24 dwg
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