US 12,425,576 B2
Methods for constructing a merge candidate list
Zhao Wang, Beijing (CN); Yan Ye, San Mateo, CA (US); and Jiancong Luo, San Mateo, CA (US)
Assigned to Alibaba Group Holding Limited, Grand Cayman (KY)
Filed by ALIBABA GROUP HOLDING LIMITED, Grand Cayman (KY)
Filed on May 14, 2024, as Appl. No. 18/663,914.
Application 18/663,914 is a continuation of application No. 18/052,011, filed on Nov. 2, 2022, granted, now 12,010,297.
Application 18/052,011 is a continuation of application No. 16/996,242, filed on Aug. 18, 2020, granted, now 11,523,104, issued on Dec. 6, 2022.
Claims priority of provisional application 62/902,790, filed on Sep. 19, 2019.
Prior Publication US 2024/0305773 A1, Sep. 12, 2024
Int. Cl. H04N 19/105 (2014.01); H04N 19/159 (2014.01); H04N 19/176 (2014.01); H04N 19/423 (2014.01)
CPC H04N 19/105 (2014.11) [H04N 19/159 (2014.11); H04N 19/176 (2014.11); H04N 19/423 (2014.11)] 20 Claims
OG exemplary drawing
 
1. A method of encoding a video sequence into a bitstream, the method comprising:
receiving a video sequence;
encoding one or more pictures of the video sequence; and
generating a bitstream, wherein the encoding comprises:
inserting a set of spatial merge candidates to a merge candidate list of a coding block, wherein:
when a first coding mode is applied to the coding block, the set of spatial merge candidates are inserted according to a first construction order;
when a second coding mode is applied to the coding block, the set of spatial merge candidates are inserted according to a second construction order, the first construction order being different from the second construction order; and
adding to the merge candidate list a history-based motion vector predictor (HMVP) from a first-in-first-out (FIFO) table, wherein
motion information of a previously coded block is stored in the FIFO table and used as the motion vector predictor for a current coding unit; or
motion information associated with a non-subblock inter-coded coding unit is added to the last entry of the FIFO table as a new HMVP candidate.