VIDEO ENCODING DEVICE, VIDEO DECODING DEVICE, VIDEO ENCODING METHOD, AND VIDEO DECODING METHOD.

摘要

In the present disclosures, when an intra prediction unit (4) generates a predicted image of a color-difference signal: intra prediction processing is executed on an encoded target block of the color-difference signal, using intra prediction parameters that are the same as intra prediction parameters used when executing intra prediction processing on an encoded target block of a brightness signal; or intra prediction processing is executed on an encoded target block of the color-difference signal by applying average value prediction. A variable-length encoding unit (13) variable-length encodes a flag indicating whether or not the intra prediction unit (4) is using the same intra prediction parameters as the brightness signal.