	US 11,889,107 B2
	Image encoding method and image decoding method
Taichiro Shiodera, Tokyo (JP); Saori Asaka, Tokyo (JP); Akiyuki Tanizawa, Kawasaki (JP); and Takeshi Chujoh, Kawasaki (JP)
Assigned to KABUSHIKI KAISHA TOSHIBA, Tokyo (JP)
Filed by KABUSHIKI KAISHA TOSHIBA, Tokyo (JP)
Filed on Jan. 11, 2022, as Appl. No. 17/573,020.
Application 17/573,020 is a continuation of application No. 16/939,479, filed on Jul. 27, 2020, granted, now 11,265,574.
Application 16/939,479 is a continuation of application No. 16/250,430, filed on Jan. 17, 2019, granted, now 10,779,001, issued on Sep. 15, 2020.
Application 16/250,430 is a continuation of application No. 16/117,609, filed on Aug. 30, 2018, granted, now 10,542,281, issued on Jan. 21, 2020.
Application 16/117,609 is a continuation of application No. 15/698,934, filed on Sep. 8, 2017, granted, now 10,091,525, issued on Oct. 2, 2018.
Application 15/698,934 is a continuation of application No. 15/350,265, filed on Nov. 14, 2016, granted, now 9,906,812, issued on Feb. 27, 2018.
Application 15/350,265 is a continuation of application No. 13/647,140, filed on Oct. 8, 2012, granted, now 10,009,623, issued on Jun. 26, 2018.
Application 13/647,140 is a continuation of application No. PCT/JP2010/071178, filed on Nov. 26, 2010.
Claims priority of application No. PCT/JP2010-056400 (WO), filed on Apr. 8, 2010.
Prior Publication US 2022/0132161 A1, Apr. 28, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H04N 19/513 (2014.01); H04N 19/105 (2014.01); H04N 19/139 (2014.01); H04N 19/159 (2014.01); H04N 19/176 (2014.01); H04N 19/70 (2014.01); H04N 19/119 (2014.01); H04N 19/137 (2014.01); H04N 19/182 (2014.01); H04N 19/109 (2014.01); H04N 19/52 (2014.01); H04N 19/124 (2014.01); H04N 19/15 (2014.01); H04N 19/61 (2014.01); H04N 19/96 (2014.01)

CPC H04N 19/521 (2014.11) [H04N 19/105 (2014.11); H04N 19/109 (2014.11); H04N 19/119 (2014.11); H04N 19/124 (2014.11); H04N 19/137 (2014.11); H04N 19/139 (2014.11); H04N 19/15 (2014.11); H04N 19/159 (2014.11); H04N 19/176 (2014.11); H04N 19/182 (2014.11); H04N 19/52 (2014.11); H04N 19/61 (2014.11); H04N 19/70 (2014.11); H04N 19/96 (2014.11)]

4 Claims

1. An image decoding method comprising:

decoding a target block by an intra prediction when a size of the target block is a predetermined size; and

decoding the target block by an inter prediction when the size of the target block is not the predetermined size,

wherein the decoding of the target block by the inter prediction comprises:

selecting one or more available blocks from already-decoded blocks, the already-decoded blocks including a first block adjacent to a left of a target block and a second block adjacent to a top of the target block, wherein the selecting one or more available blocks comprises:

determining which of the inter prediction and the intra prediction is applied to the first block, wherein when it is determined that the intra prediction is applied to the first block, the first block is not selected as an available block,

determining which of the inter prediction and the intra prediction is applied to the second block, wherein when it is determined that the intra prediction is applied to the second block, the second block is not selected as an available block,

determining, when the inter prediction is applied to the first block and the second block, whether a motion vector of the first block is identical to a motion vector of the second block,

selecting the first block and the second block as available blocks when the motion vector of the first block is different from the motion vector of the second block, and

selecting one of the first block and the second block as an available block when the motion vector of the first block is identical to the motion vector of the second block, wherein the other of the first block and the second block is not selected as an available block;

decoding from input encoded data selection information specifying one of the one or more available blocks;

selecting a block from the one or more available blocks in accordance with the selection information; and

generating a predicted image of the target block using a motion vector of the selected block.