US 12,003,775 B2
Video decoding apparatus and video coding apparatus
Eiichi Sasaki, Sakai (JP); Yukinobu Yasugi, Sakai (JP); Takeshi Chujoh, Sakai (JP); Tomoko Aono, Sakai (JP); and Tomohiro Ikai, Sakai (JP)
Assigned to SHARP KABUSHIKI KAISHA, Sakai (JP)
Appl. No. 17/264,869
Filed by Sharp Kabushiki Kaisha, Sakai (JP)
PCT Filed Aug. 6, 2019, PCT No. PCT/JP2019/030950
§ 371(c)(1), (2) Date Feb. 1, 2021,
PCT Pub. No. WO2020/032049, PCT Pub. Date Feb. 13, 2020.
Claims priority of application No. 2018-147658 (JP), filed on Aug. 6, 2018; application No. 2018-148470 (JP), filed on Aug. 7, 2018; and application No. 2018-148471 (JP), filed on Aug. 7, 2018.
Prior Publication US 2021/0227262 A1, Jul. 22, 2021
Int. Cl. H04N 19/107 (2014.01); H04N 19/105 (2014.01); H04N 19/117 (2014.01); H04N 19/176 (2014.01); H04N 19/46 (2014.01); H04N 19/70 (2014.01); H04N 19/82 (2014.01)
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
OG exemplary drawing
 
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.