US 12,132,932 B2
Intra prediction using enhanced interpolation filters
Bappaditya Ray, San Diego, CA (US); Vadim Seregin, San Diego, CA (US); and Marta Karczewicz, San Diego, CA (US)
Assigned to QUALCOMM Incorporated, San Diego, CA (US)
Filed by QUALCOMM Incorporated, San Diego, CA (US)
Filed on Dec. 17, 2021, as Appl. No. 17/645,024.
Claims priority of provisional application 63/129,437, filed on Dec. 22, 2020.
Prior Publication US 2022/0201329 A1, Jun. 23, 2022
Int. Cl. H04N 19/593 (2014.01); H04N 19/105 (2014.01); H04N 19/11 (2014.01); H04N 19/117 (2014.01); H04N 19/174 (2014.01); H04N 19/176 (2014.01); H04N 19/80 (2014.01)
CPC H04N 19/593 (2014.11) [H04N 19/105 (2014.11); H04N 19/11 (2014.11); H04N 19/117 (2014.11); H04N 19/174 (2014.11); H04N 19/176 (2014.11); H04N 19/80 (2014.11)] 16 Claims
OG exemplary drawing
 
1. An apparatus for processing video data, comprising:
at least one memory; and
at least one processor coupled to the at least one memory and configured to:
determine a non-integer angled intra-prediction mode for predicting a block of video data;
for the non-integer angled intra-prediction mode, select between a first Gaussian smoothing interpolation filter and a second Gaussian smoothing interpolation filter to use for the block of video data, wherein the first Gaussian smoothing interpolation filter comprises more filter taps than the second Gaussian smoothing interpolation filter, wherein the selection is based at least in part on comparing at least one of a width of the block of video data and a height of the block of video data to a first threshold; and
for the non-integer angled intra-prediction mode, perform intra-prediction for the block of video data using the selected smoothing interpolation filter and the intra-prediction mode.