PICTURE ENCODER AND DECODER Russian patent published in 2012 - IPC H04N7/32 H04N11/04 

FIELD: physics, communication.

SUBSTANCE: invention relates to picture digital signal encoder/decoder in appropriate chroma signal format. Encoder comprises module to divide input bit flow into appropriate colour components, module to divide colour component input signal into blocks so that coding unit area signal can be generated, module to generate P-frame for said signal, module to determine prediction mode used for encoding by efficiency P-frame prediction, module to encode prediction error for encoding difference between predicted frame corresponding to prediction mode as defined by appropriate module and colour component input signal, and module for encoding with variable length of prediction mode code, output signal of prediction error encoding module and colour component identification flag indicating colour component wherein belongs said input bit flow resulted from division of colour components.

EFFECT: higher efficiency.

2 cl, 98 dwg