US 11,943,438 B2
Method for encoding/decoding image signal, and device for same
Bae Keun Lee, Seongnam-si (KR)
Assigned to Apple Inc., Cupertino, CA (US)
Filed by Apple Inc., Cupertino, CA (US)
Filed on Aug. 23, 2022, as Appl. No. 17/894,067.
Application 17/894,067 is a continuation of application No. 17/197,442, filed on Mar. 10, 2021, granted, now 11,463,695.
Application 17/197,442 is a continuation of application No. PCT/KR2020/005118, filed on Apr. 16, 2020.
Claims priority of application No. 10-2019-0044682 (KR), filed on Apr. 17, 2019; and application No. 10-2019-0047457 (KR), filed on Apr. 23, 2019.
Prior Publication US 2022/0408086 A1, Dec. 22, 2022
Int. Cl. H04N 19/119 (2014.01); H04N 19/107 (2014.01); H04N 19/122 (2014.01); H04N 19/174 (2014.01)
CPC H04N 19/119 (2014.11) [H04N 19/107 (2014.11); H04N 19/122 (2014.11); H04N 19/174 (2014.11)] 12 Claims
OG exemplary drawing
 
1. A method of decoding a video, the method comprising:
partitioning a current picture into a plurality of tiles grouped according to a plurality of rectangular slices;
decoding slice partitioning information from a bitstream, the slice partitioning information specifying a slice definition method;
determining that the slice definition method is a rectangular slice definition method;
in response to determining that the slice definition method is the rectangular slice definition method, decoding tile index delta information for one or more first rectangular slices of the plurality of rectangular slices,
wherein, for each of the one or more first rectangular slices, the tile index delta information specifies a difference between an index of a tile located a top left of that first rectangular slice and an index of a tile located at a top left of a respective other rectangular slice of the plurality of rectangular slices, and
wherein decoding the tile index delta information is omitted for a sequentially last one among the plurality of rectangular slices in the current picture.