	US 12,348,766 B2
	Moving picture coding method, moving picture decoding method, moving picture coding apparatus, moving picture decoding apparatus, and moving picture coding and decoding apparatus
Toshiyasu Sugio, Osaka (JP); Takahiro Nishi, Nara (JP); Youji Shibahara, Osaka (JP); Kyoko Tanikawa, Osaka (JP); Hisao Sasai, Osaka (JP); Toru Matsunobu, Osaka (JP); and Kengo Terada, Osaka (JP)
Assigned to SUN PATENT TRUST, New York, NY (US)
Filed by Sun Patent Trust, New York, NY (US)
Filed on Feb. 28, 2024, as Appl. No. 18/589,780.
Application 18/589,780 is a continuation of application No. 18/089,761, filed on Dec. 28, 2022, granted, now 11,949,907.
Application 18/089,761 is a continuation of application No. 17/102,608, filed on Nov. 24, 2020, granted, now 11,595,682, issued on Feb. 28, 2023.
Application 17/102,608 is a continuation of application No. 16/708,833, filed on Dec. 10, 2019, granted, now 10,880,572, issued on Dec. 29, 2020.
Application 16/708,833 is a continuation of application No. 16/233,470, filed on Dec. 27, 2018, granted, now 10,560,716, issued on Feb. 11, 2020.
Application 16/233,470 is a continuation of application No. 15/260,529, filed on Sep. 9, 2016, granted, now 10,212,447, issued on Feb. 19, 2019.
Application 15/260,529 is a continuation of application No. 13/783,435, filed on Mar. 4, 2013, granted, now 9,479,777, issued on Oct. 25, 2016.
Claims priority of provisional application 61/607,028, filed on Mar. 6, 2012.
Prior Publication US 2024/0205450 A1, Jun. 20, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. H04N 19/13 (2014.01); H04N 19/105 (2014.01); H04N 19/159 (2014.01); H04N 19/46 (2014.01); H04N 19/503 (2014.01); H04N 19/52 (2014.01); H04N 19/172 (2014.01); H04N 19/176 (2014.01)

CPC H04N 19/52 (2014.11) [H04N 19/105 (2014.11); H04N 19/159 (2014.11); H04N 19/46 (2014.11); H04N 19/503 (2014.11); H04N 19/172 (2014.11); H04N 19/176 (2014.11)]

3 Claims

1. A moving picture decoding apparatus for decoding a current block to be decoded included in a current picture to be decoded by inter predictive decoding using a motion vector, the moving picture decoding apparatus comprising:

a processor; and

a memory having a computer program stored thereon, the computer program causing the processor to execute operations including:

decoding a first flag indicating whether or not temporal motion vector prediction using a temporal motion vector predictor which is a motion vector of a block included in a decoded picture different from the current picture is used;

assigning one or more reference picture indexes to a reference picture list;

when the first flag indicates that the temporal motion vector prediction is used,

decoding a collocated reference picture index for specifying the decoded picture among a plurality of pictures indicated by the one or more reference picture indexes,

deriving a plurality of first motion vector predictor candidates including (i) a spatial motion vector predictor which is a motion vector of a block adjacent to the current block in the current picture and (ii) the temporal motion vector predictor, the temporal motion vector predictor being calculated based on a motion vector of the coded picture which is specified by the collocated reference picture index, and

decoding a motion vector used for performing inter predictive decoding on the current block using one of the first motion vector predictor candidates; and

when the first flag indicates that the temporal motion vector prediction is not used,

deriving a plurality of second motion vector predictor candidates that do not include the temporal motion vector predictor, the second motion vector candidates including (i) the spatial motion vector predictor and (ii) a replacement vector, as a replacement for the temporal motion vector predictor, and decoding a motion vector used for performing inter predictive decoding on the current block, using one of the second motion vector predictor candidates,

wherein when the first flag indicates that the temporal motion vector prediction is not used, the collocated reference picture index is not decoded.