IMAGE PROCESSING DEVICE AND METHOD Russian patent published in 2016 - IPC H04N19/124 

FIELD: physics.

SUBSTANCE: image processing device comprises a circuit configured to decode encoded data into coding elements, which are generated by the recursive division of the largest coding element into smaller coding elements as element division to generate quantised data; setting, using a value indicating the minimum size of the coding element for which a difference quantisation parameter is set and using the said difference quantisation parameter, the current quantisation parameter for the current coding element; and reverse quantisation, using the set quantisation parameter, the generated quantisation data.

EFFECT: preventing the deterioration of subjective image quality for a decoded image.

12 cl, 43 dwg