US 12,244,837 B2
Image processing apparatus and method
Yuji Fujimoto, Tokyo (JP)
Assigned to SONY GROUP CORPORATION, Tokyo (JP)
Filed by Sony Group Corporation, Tokyo (JP)
Filed on Sep. 29, 2023, as Appl. No. 18/477,580.
Application 18/477,580 is a continuation of application No. 17/295,440, granted, now 11,800,123, previously published as PCT/JP2019/047782, filed on Dec. 6, 2019.
Claims priority of application No. 2018-240108 (JP), filed on Dec. 21, 2018.
Prior Publication US 2024/0040137 A1, Feb. 1, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. H04N 19/436 (2014.01); H04N 19/176 (2014.01); H04N 19/503 (2014.01); H04N 19/593 (2014.01); H04N 19/91 (2014.01); H04N 19/96 (2014.01)
CPC H04N 19/436 (2014.11) [H04N 19/176 (2014.11); H04N 19/503 (2014.11); H04N 19/593 (2014.11); H04N 19/91 (2014.11); H04N 19/96 (2014.11)] 16 Claims
OG exemplary drawing
 
1. An image processing apparatus comprising:
a processor that performs processing of coefficient data related to an image that has been divided into a first line of coding tree units (CTUs) and a second line of CTUs that is parallel to the first line of CTUs, each of the first and second lines of CTUs divided into first and second lines of transformation blocks such that each CTU includes a lower left transformation block, a lower right transformation block, an upper left transformation block and an upper right transformation block, each of the transformation blocks being Virtual Pipeline Data Units (VPDUs),
wherein the processing comprises coding the first line of CTUs and the second line of CTUs in parallel,
wherein the coding of the first line of CTUs and the second line of CTUs includes sequentially coding respective transformation blocks, and
wherein the coding of a first transformation unit of a first CTU of the second line of CTUs begins immediately after coding of a last transformation unit of a first CTU of the first line of CTUs is completed,
wherein the processor further performs intra prediction on the image that includes:
performing intra prediction of each of the lower left transformation block, and upper left transformation block of the second line of CTUs with reference to corresponding adjacent transform blocks and a corresponding non-adjacent upper right transform block, and
performing intra prediction of each upper right transformation block of the second line of CTUs with reference to corresponding adjacent transform blocks and without reference to a corresponding non-adjacent upper right transform block.