IMAGE ENCODING DEVICE AND IMAGE DECODING DEVICE Russian patent published in 2014 - IPC H04N19/186 H04N19/50 

FIELD: physics, computer engineering.

SUBSTANCE: invention relates to encoding and decoding a digital image signal. The encoding device includes a colour component separating module for dividing the input bit stream into corresponding colour components, a module for dividing the input signal of the colour component into blocks in order to generate a signal of the coding unit region; a predicted image generating module for generating the predicted image for that signal, a determination module for determining the prediction mode used for encoding according to prediction efficiency of the predicted image, a prediction error encoding module for encoding the difference between the predicted image, which corresponds to the prediction mode determined by the determination module, and the input signal of the colour component, and an encoding module for variable length encoding of the prediction mode, the output signal from the prediction error encoding module and colour component identification flag which indicates the colour component belonging to the input bit stream as a result of colour component separation.

EFFECT: high accuracy of encoding moving image signals.

2 cl, 98 dwg