US 12,284,381 B2
Image processing method based on inter prediction mode, and device therefor
Hyeongmoon Jang, Seoul (KR); Junghak Nam, Seoul (KR); and Naeri Park, Seoul (KR)
Assigned to BEIJING XIAOMI MOBILE SOFTWARE CO., LTD., Beijing (CN)
Filed by BEIJING XIAOMI MOBILE SOFTWARE CO., LTD., Beijing (CN)
Filed on Feb. 8, 2024, as Appl. No. 18/436,948.
Application 18/436,948 is a continuation of application No. 18/117,939, filed on Mar. 6, 2023, granted, now 11,949,904.
Application 18/117,939 is a continuation of application No. 17/542,775, filed on Dec. 6, 2021, granted, now 11,632,565, issued on Apr. 18, 2023.
Application 17/542,775 is a continuation of application No. 17/060,582, filed on Oct. 1, 2020, granted, now 11,252,432, issued on Feb. 15, 2022.
Application 17/060,582 is a continuation of application No. PCT/KR2019/003825, filed on Apr. 1, 2019.
Claims priority of provisional application 62/651,229, filed on Apr. 1, 2018.
Prior Publication US 2024/0187635 A1, Jun. 6, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. H04N 11/02 (2006.01); H04N 19/109 (2014.01); H04N 19/136 (2014.01); H04N 19/176 (2014.01); H04N 19/513 (2014.01); H04N 19/587 (2014.01); H04N 19/70 (2014.01)
CPC H04N 19/513 (2014.11) [H04N 19/109 (2014.11); H04N 19/136 (2014.11); H04N 19/176 (2014.11); H04N 19/587 (2014.11); H04N 19/70 (2014.11)] 9 Claims
OG exemplary drawing
 
1. An apparatus of decoding an image, comprising:
a memory configured to store the image; and
a processor coupled with the memory,
wherein the processor is configured to:
obtain a reference index of a collocated picture being used for a motion vector prediction;
based on that a reference picture of a spatial neighboring block around a current block is the same as one pre-defined reference picture among reference pictures included in a reference picture list, derive a collocated block of the current block in the one pre-defined reference picture using a motion vector of the spatial neighboring block, wherein the one pre-defined reference picture is based on the reference index of the collocated picture;
derive motion vectors of sub-blocks in the current block based on a motion vector of the collocated block;
generate prediction samples of the current block based on the motion vectors of the sub-blocks; and
generate reconstructed samples of the current block based on the prediction samples,
wherein the one pre-defined reference picture is loaded in a slice header.