US 12,192,487 B2
Last coefficient coding for adaptive transform based video compression
Sebastien Lasserre, Thorigné Fouillard (FR); Saurabh Puri, Rennes (FR); and Patrick Le Callet, Le Pallet (FR)
Assigned to INTERDIGITAL VC HOLDINGS, INC., Wilmington, DE (US)
Filed by INTERDIGITAL VC HOLDINGS, INC., Wilmington, DE (US)
Filed on Oct. 5, 2022, as Appl. No. 17/960,683.
Application 17/960,683 is a continuation of application No. 16/317,228, granted, now 11,496,752, previously published as PCT/EP2017/067616, filed on Jul. 12, 2017.
Claims priority of application No. 16305919 (EP), filed on Jul. 15, 2016.
Prior Publication US 2023/0039301 A1, Feb. 9, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H04N 19/18 (2014.01); H04N 19/12 (2014.01); H04N 19/13 (2014.01); H04N 19/132 (2014.01); H04N 19/147 (2014.01); H04N 19/176 (2014.01); H04N 19/463 (2014.01); H04N 19/60 (2014.01); H04N 19/91 (2014.01); H04N 19/192 (2014.01)
CPC H04N 19/18 (2014.11) [H04N 19/12 (2014.11); H04N 19/13 (2014.11); H04N 19/132 (2014.11); H04N 19/147 (2014.11); H04N 19/176 (2014.11); H04N 19/463 (2014.11); H04N 19/60 (2014.11); H04N 19/91 (2014.11); H04N 19/192 (2014.11)] 20 Claims
OG exemplary drawing
 
1. A method for encoding, comprising:
applying a partial transform to a block of image values to obtain a block of transform coefficients; and
entropy encoding the block of transform coefficients,
wherein the entropy encoding of the block of transform coefficients comprises entropy encoding a syntax element representing a coordinate of a position of a last coded transform coefficient in the block of transform coefficients, the entropy encoding of the syntax element depending on a size of the partial transform.