MOVING IMAGE ENCODING DEVICE, MOVING IMAGE DECODING DEVICE, MOVING IMAGE ENCODING METHOD AND MOVING IMAGE DECODING METHOD Russian patent published in 2015 - IPC H04N19/593 

FIELD: physics, computer engineering.

SUBSTANCE: invention relates to computer engineering. An image decoding device comprises an internal prediction module for, when the encoding mode for an encoding unit is an internal encoding mode, performing intra-frame prediction over each unit which is a unit for the prediction process for forming a prediction image, wherein said unit is said encoding unit or a unit obtained by dividing said encoding unit, wherein said internal prediction module generates an intermediate predicted value from reference samples according to an internal prediction parameter indicating the type of internal prediction, sets a value which is obtained by filtering the intermediate predicted value as the final predicted value only for at least one specific position in said unit, and sets the intermediate predicted value as the final predicted value for any other positions in said unit.

EFFECT: high image quality by reducing prediction errors.

4 cl, 10 dwg