US 12,294,712 B2
Method and device for signaling information related to slice in image/video encoding/decoding system
Hendry Hendry, Seoul (KR); Seethal Paluri, Seoul (KR); and Seunghwan Kim, Seoul (KR)
Assigned to LG ELECTRONICS INC., Seoul (KR)
Filed by LG ELECTRONICS INC., Seoul (KR)
Filed on Dec. 28, 2023, as Appl. No. 18/399,123.
Application 18/399,123 is a continuation of application No. 17/966,238, filed on Oct. 14, 2022, granted, now 11,902,528.
Application 17/966,238 is a continuation of application No. 17/826,087, filed on May 26, 2022, granted, now 11,509,905, issued on Nov. 22, 2022.
Application 17/826,087 is a continuation of application No. PCT/KR2020/016891, filed on Nov. 26, 2020.
Claims priority of provisional application 62/941,845, filed on Nov. 28, 2019.
Prior Publication US 2024/0129475 A1, Apr. 18, 2024
Int. Cl. H04N 19/132 (2014.01); H04N 19/174 (2014.01); H04N 19/176 (2014.01); H04N 19/70 (2014.01)
CPC H04N 19/132 (2014.11) [H04N 19/174 (2014.11); H04N 19/176 (2014.11); H04N 19/70 (2014.11)] 7 Claims
OG exemplary drawing
 
1. A video decoding method performed by a video decoding apparatus, the method comprising:
parsing a syntax element for a slice width from a bitstream;
parsing, based on a value of the syntax element for the slice width being equal to 0, number information related to a number of explicit slices each having its height explicitly signaled within a tile of a current picture from the bitstream;
parsing height information related to heights of explicit slices each having its height explicitly signaled from the bitstream based on the number information;
deriving a number of slices within the tile based on the number information and the height information;
generating prediction samples by performing prediction on a current block of the current picture based on one of the slices within the tile;
generating reconstructed samples based on the prediction samples; and
generating a reconstructed picture for the current picture based on the reconstructed samples,
wherein a number of syntax elements in the height information is equal to the number of the explicit slices specified by the number information,
wherein, based on the number of explicit slices being equal to n, heights of a 0-th slice to an (n−1)-th slice within the tile are derived based on the syntax elements in the height information,
wherein a height of an n-th slice within the tile is derived based on the height of the (n−1)-th slice, and
wherein a height of a last slice within the tile is derived based on a remaining height after subtracting the heights of other slices within the tile from a height of the tile.