US 12,262,122 B2
Image data encoding/decoding method and apparatus
Ki Baek Kim, Daejeon (KR)
Assigned to B1 INSTITUTE OF IMAGE TECHNOLOGY, INC., Seoul (KR)
Filed by B1 INSTITUTE OF IMAGE TECHNOLOGY, INC., Seoul (KR)
Filed on Nov. 6, 2023, as Appl. No. 18/502,384.
Application 18/502,384 is a continuation of application No. 17/512,996, filed on Oct. 28, 2021.
Application 17/512,996 is a continuation of application No. 17/211,575, filed on Mar. 24, 2021, granted, now 11,202,005, issued on Dec. 14, 2021.
Application 17/211,575 is a continuation of application No. 17/085,935, filed on Oct. 30, 2020, granted, now 11,533,429, issued on Dec. 20, 2022.
Application 17/085,935 is a continuation of application No. 16/372,270, filed on Apr. 1, 2019, abandoned.
Application 16/372,270 is a continuation of application No. PCT/KR2017/011149, filed on Oct. 10, 2017.
Claims priority of application No. 10-2016-0127893 (KR), filed on Oct. 4, 2016; application No. 10-2016-0129391 (KR), filed on Oct. 6, 2016; and application No. 10-2017-0090621 (KR), filed on Jul. 17, 2017.
Prior Publication US 2024/0155243 A1, May 9, 2024
Int. Cl. H04N 19/119 (2014.01); G06T 3/40 (2006.01); H04N 19/103 (2014.01); H04N 19/11 (2014.01); H04N 19/124 (2014.01); H04N 19/129 (2014.01); H04N 19/13 (2014.01); H04N 19/134 (2014.01); H04N 19/159 (2014.01); H04N 19/176 (2014.01); H04N 19/51 (2014.01); H04N 19/625 (2014.01); H04N 19/70 (2014.01); H04N 23/698 (2023.01)
CPC H04N 23/698 (2023.01) [G06T 3/40 (2013.01); H04N 19/103 (2014.11); H04N 19/11 (2014.11); H04N 19/119 (2014.11); H04N 19/124 (2014.11); H04N 19/129 (2014.11); H04N 19/13 (2014.11); H04N 19/134 (2014.11); H04N 19/159 (2014.11); H04N 19/176 (2014.11); H04N 19/51 (2014.11); H04N 19/625 (2014.11)] 7 Claims
OG exemplary drawing
 
1. A method of decoding an image with a decoding apparatus, comprising:
receiving a bitstream in which the image is encoded;
obtaining, from the bitstream, a single index information for specifying a block division type of a current block in the image;
determining, based on the single index information, the block division type of the current block from a candidate group pre-defined in the decoding apparatus,
wherein the candidate group includes a plurality of candidate division types,
wherein the plurality of candidate division types include at least one of a non-division, a first quad-division, a second quad-division, a binary-division or a triple-division,
wherein the first quad-division is representative of dividing, based on one horizontal line and one vertical line, one coding block into four coding blocks, the second quad-division is representative of dividing, based on three horizontal lines or three vertical lines, one coding block into four coding blocks, the binary-division is representative of dividing one coding block into two coding blocks, and the triple-division is representative of dividing one coding block into three coding blocks,
wherein the binary-division includes a horizontal binary-division and a vertical binary-division, and
wherein the bitstream includes a first flag specifying whether to perform the horizontal binary-division and a second flag specifying whether to perform the vertical binary-division, the first flag being different from the second flag;
dividing, based on the determined block division type, the current block into a plurality of sub-blocks; and
decoding each of the sub-blocks with reference to syntax information obtained from the bitstream,
wherein the decoding each of the sub-blocks comprises generating a prediction block of each of the sub-blocks and generating a residual block of each of the sub-blocks.