Patent ID: 9363525
Filing Date: 2016-06-07
CPC Classification: H04N

Claim Text:
1. A decoding method for decoding a control parameter for controlling decoding of an image, the decoding method comprising: determining a context for a current block in the image, from among a plurality of contexts; and performing arithmetic decoding on a bitstream corresponding to the current block, using the determined context to obtain the control parameter for the current block, wherein the determining further includes: wherein the control parameter determined as the first type belongs to the current block having a size larger than or equal to a size of a block to which the control parameter determined as the second type belongs, wherein one of a split flag and a skip flag is classified under the first type, the split flag indicating whether or not the current block is partitioned into a plurality of blocks, and the skip flag indicating whether or not the current block is to be skipped, and wherein a residual flag is classified under the second type, the residual flag indicating whether or not luma coefficient data and chroma coefficient data are included in the current block.