US 12,088,798 B2
Dynamic image decoding device, dynamic image decoding method, dynamic image decoding program, dynamic image encoding device, dynamic image encoding method, and dynamic image encoding program
Shigeru Fukushima, Yokohama (JP); Hiroya Nakamura, Yokohama (JP); Satoru Sakazume, Yokohama (JP); Toru Kumakura, Yokohama (JP); Hiroyuki Kurashige, Yokohama (JP); and Hideki Takehara, Yokohama (JP)
Assigned to JVCKENWOOD CORPORATION, Yokohama (JP)
Filed by JVCKENWOOD Corporation, Yokohama (JP)
Filed on Jun. 15, 2023, as Appl. No. 18/210,559.
Application 18/210,559 is a continuation of application No. 17/962,421, filed on Oct. 7, 2022, granted, now 11,856,190.
Application 17/962,421 is a continuation of application No. 17/417,351, granted, now 11,503,283, issued on Nov. 15, 2022, previously published as PCT/JP2019/050103, filed on Dec. 20, 2019.
Claims priority of application No. 2018-247407 (JP), filed on Dec. 28, 2018; and application No. 2019-063065 (JP), filed on Mar. 28, 2019.
Prior Publication US 2023/0328236 A1, Oct. 12, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H04N 19/107 (2014.01); H04N 19/105 (2014.01); H04N 19/137 (2014.01); H04N 19/176 (2014.01); H04N 19/423 (2014.01)
CPC H04N 19/107 (2014.11) [H04N 19/105 (2014.11); H04N 19/137 (2014.11); H04N 19/176 (2014.11); H04N 19/423 (2014.11)] 9 Claims
OG exemplary drawing
 
1. A moving-picture decoding device comprising:
a spatial motion information candidate derivation unit configured to derive a spatial motion information candidate from motion information of a block neighboring a decoding target block in a space domain;
a temporal motion information candidate derivation unit configured to derive a temporal motion information candidate from motion information of a block neighboring a decoding target block in a time domain; and
a history-based motion information candidate derivation unit configured to derive a history-based motion information candidate from a memory for retaining motion information of a decoded block,
wherein the history-based motion information candidate is compared with the spatial motion information candidate with respect to the motion information,
history-based motion information candidate is not compared with the temporal motion information candidate with respect to the motion information, and
the spatial motion information candidate is not compared with the temporal motion information candidate with respect to the motion information.