Patent ID: 11968378
Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 5:
6. A decoding method, comprising:
determining whether a size of a current block is larger than a determined size, the determined size being equal to a maximum size of a transform block;
when the size of the current block is not larger than the determined size, (i) deriving a first correction parameter using neighboring reconstructed images that neighbor the current block, and (ii) performing correction of a prediction image for the whole current block using the first correction parameter derived using the neighboring reconstructed images; and
when the size of the current block is larger than the determined size, (i) deriving a second correction parameter using only portions of the neighboring reconstructed images that neighbor a leading processing unit included in the current block, and (ii) performing correction of the prediction image for the whole current block using the second correction parameter derived using only the portions of the neighboring reconstructed images,
wherein the leading processing unit is an upper-leftmost processing unit from among processing units obtained by splitting the current block into the processing units, each of the processing units having the determined size.