IMAGE ENCODING DEVICE, IMAGE ENCODING METHOD, IMAGE DECODING DEVICE, IMAGE DECODING METHOD, AND PROGRAM Russian patent published in 2017 - IPC H04N19/00 

FIELD: physics.

SUBSTANCE: image encoding device is arranged to divide the image into one or more slices, each of which includes a plurality of blocks, and to encode each slice in blocks, and further comprises the first encoding unit configured to encode the blocks included in the first slice portion, and the second encoding unit configured to encode the blocks included in the second slice portion. When the second encoding unit encodes the start block in the second part, it implements this by referring to the first quantization parameter provided for the slice as an initial value and to which the first encoding unit also accesses, when the first encoding unit encodes the start block in the first part.

EFFECT: possibility of parallel encoding, decoding as the whole processing are provided, including, when the blocks are encoded, they are decoded in parallel along the lines using the wave front method.

18 cl, 28 dwg