CPC H04N 19/70 (2014.11) [H04N 19/105 (2014.11); H04N 19/117 (2014.11); H04N 19/176 (2014.11); H04N 19/46 (2014.11); H04N 19/82 (2014.11)] | 5 Claims |
3. An image encoding apparatus for encoding image data, the image encoding apparatus comprising:
a parameter encoder that:
encodes a flag in a sequence parameter set, wherein the flag specifies whether a position syntax element is signaled, wherein the flag is represented by an unsigned integer using 1 bit, and wherein a value of the flag is equal to one in a case that a sequential refresh is used, and the value of the flag is equal to zero in a case that the sequential refresh is not used,
encodes the position syntax element specifying a location for a region boundary in a unit of a specified region, in a case that the value of the flag is equal to one, and
derives a location of the region boundary using the position syntax element; and
a deblocking filter that adaptively performs a filtering process to a block boundary,
wherein the deblocking filter is not applied to the block boundary between two blocks, in a case that (i) the value of the flag is equal to one and (ii) the block boundary coincides with the region boundary.
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