US 12,439,086 B2
Image data encoding/decoding method and apparatus
Ki Baek Kim, Seoul (KR)
Assigned to B1 INSTITUTE OF IMAGE TECHNOLOGY INC., Seoul (KR)
Filed by B1 INSTITUTE OF IMAGE TECHNOLOGY, INC., Seoul (KR)
Filed on Jun. 18, 2024, as Appl. No. 18/746,056.
Application 18/746,056 is a continuation of application No. 18/364,056, filed on Aug. 2, 2023, granted, now 12,069,304.
Application 18/364,056 is a continuation of application No. 18/325,521, filed on May 30, 2023, granted, now 11,902,578, issued on Feb. 13, 2024.
Application 18/325,521 is a continuation of application No. 18/095,665, filed on Jan. 11, 2023, granted, now 11,818,396, issued on Nov. 14, 2023.
Application 18/095,665 is a continuation of application No. 17/580,053, filed on Jan. 20, 2022, granted, now 11,601,677, issued on Mar. 7, 2023.
Application 17/580,053 is a continuation of application No. 17/027,189, filed on Sep. 21, 2020, granted, now 11,539,979, issued on Dec. 17, 2022.
Application 17/027,189 is a continuation of application No. 16/375,748, filed on Apr. 4, 2019, abandoned.
Application 16/375,748 is a continuation of application No. PCT/KR2017/011152, filed on Oct. 10, 2017.
Claims priority of application No. 10-2016- 0127890 (KR), filed on Oct. 4, 2016; application No. 10-2016-0129389 (KR), filed on Oct. 6, 2016; and application No. 10-2017-0090619 (KR), filed on Jul. 17, 2017.
Prior Publication US 2024/0340451 A1, Oct. 10, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. H04N 19/597 (2014.01); G06T 3/16 (2024.01); H04N 13/00 (2018.01); H04N 13/139 (2018.01); H04N 13/161 (2018.01); H04N 19/70 (2014.01)
CPC H04N 19/597 (2014.11) [G06T 3/16 (2024.01); H04N 13/139 (2018.05); H04N 13/161 (2018.05); H04N 19/70 (2014.11); H04N 2013/0085 (2013.01)] 3 Claims
OG exemplary drawing
 
1. An image decoding method performed by an image decoding apparatus, the image decoding method comprising:
partitioning a current image into a plurality of sub-areas based on partitioning information, wherein the partitioning information includes first information specifying a number of the plurality of sub-areas and a second information specifying a top left position of a sub-area of the plurality of sub-areas;
obtaining a coding block by dividing a current sub-area among the plurality of sub-areas;
obtaining coding information for the current sub-area from the bitstream;
dividing the coding block in the current sub-area to obtain one or more sub-blocks based on the coding information,
wherein the coding information includes at least one of a first syntax element indicating whether to divide the coding block to obtain the one or more sub-blocks, a second syntax element indicating whether to divide the coding block asymmetrically, or a third syntax element indicating whether a division direction for the coding block is a horizontal direction or a vertical direction, the first syntax element, the second syntax element and the third syntax element being different from each other;
obtaining a residual signal of the coding block by performing inverse-quantization and inverse-transformation on a first sub-block, the first sub-block belonging to the one or more sub-blocks; and
reconstructing the coding block based on the residual signal and a prediction signal corresponding to the residual signal,
wherein the prediction signal is generated by obtaining prediction information for the coding block from the bitstream, determining a prediction method for the coding block based on the prediction information, and performing prediction for the coding block based on the determined prediction method,
wherein the prediction method is determined as one among a plurality of prediction methods including an intra prediction method.