US 12,445,635 B2
Coding and decoding methods of a picture block, corresponding devices and data stream
Philippe Bordes, Laille (FR); Franck Hiron, Chateaubourg (FR); Pierre Andrivon, Liffre (FR); Patrick Lopez, Livré sur Changeon (FR); and Philippe Salmon, Saint Sulpice la Foret (FR)
Assigned to InterDigital VC Holdings, Inc., Wilmington, DE (US)
Filed by InterDigital VC Holdings, Inc., Wilmington, DE (US)
Filed on Jun. 14, 2024, as Appl. No. 18/743,536.
Application 18/743,536 is a continuation of application No. 18/222,860, filed on Jul. 17, 2023, granted, now 12,052,432.
Application 18/222,860 is a continuation of application No. 18/086,554, filed on Dec. 21, 2022, granted, now 11,750,830, issued on Sep. 5, 2023.
Application 18/086,554 is a continuation of application No. 14/768,929, granted, now 11,558,629, issued on Jan. 17, 2023, previously published as PCT/EP2014/053021, filed on Feb. 17, 2014.
Claims priority of application No. 13305203 (EP), filed on Feb. 22, 2013.
Prior Publication US 2024/0333954 A1, Oct. 3, 2024
Int. Cl. H04N 19/44 (2014.01); H04N 19/176 (2014.01); H04N 19/30 (2014.01); H04N 19/50 (2014.01); H04N 19/573 (2014.01); H04N 21/235 (2011.01); H04N 21/438 (2011.01)
CPC H04N 19/44 (2014.11) [H04N 19/176 (2014.11); H04N 19/30 (2014.11); H04N 19/50 (2014.11); H04N 19/573 (2014.11); H04N 21/2358 (2013.01); H04N 21/4384 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A decoding method comprising:
decoding a plurality of pictures from a first bitstream, including a first and second picture, and storing the first picture and the second picture;
switching from the first bitstream to a second bitstream, the second bitstream including a third picture;
in response to the switching, obtaining a plurality of difference pictures including a first difference picture and a second difference picture;
modifying the stored first picture based on the first difference picture and modifying the second stored picture based on the second difference picture; and
reconstructing the third picture from the modified first picture and the modified second picture.