US 12,113,998 B2
No reference image quality assessment based decoder side intra prediction
Tae Meon Bae, McLean, VA (US); Esmael Hejazi Dinan, McLean, VA (US); and Kalyan Goswami, Reston, VA (US)
Assigned to Ofinno, LLC, Reston, VA (US)
Filed by Ofinno, LLC, Reston, VA (US)
Filed on Nov. 12, 2021, as Appl. No. 17/525,606.
Claims priority of provisional application 63/113,230, filed on Nov. 13, 2020.
Prior Publication US 2022/0159281 A1, May 19, 2022
Int. Cl. H04N 19/44 (2014.01); C12N 1/16 (2006.01); C12N 15/81 (2006.01); H04N 19/11 (2014.01); H04N 19/159 (2014.01); H04N 19/176 (2014.01); H04N 19/18 (2014.01)
CPC H04N 19/44 (2014.11) [C12N 1/165 (2021.05); C12N 15/815 (2013.01); H04N 19/11 (2014.11); H04N 19/159 (2014.11); H04N 19/176 (2014.11); H04N 19/18 (2014.11)] 20 Claims
OG exemplary drawing
 
1. A method comprising:
receiving, by a decoder, from a bitstream for a block:
an indication of decoder-side-prediction of an intra prediction mode, wherein a first value of the indication indicates that the intra prediction mode is to be determined by the decoder and a second value of the indication indicates that the intra prediction mode is to be determined from the bitstream; and
a reconstructed residual block;
based on the indication having the first value,
generating, by the decoder, a plurality of reconstructed blocks for a plurality of intra prediction modes, wherein each reconstructed block of the plurality of reconstructed blocks is generated based on:
a prediction block generated for a respective intra prediction mode of the plurality of intra prediction modes; and
the reconstructed residual block;
selecting, by the decoder, a prediction mode, from the plurality of intra prediction modes, as the intra prediction mode of the block based on
a visual quality of each of the plurality of reconstructed blocks; and
decoding, by the decoder, the block based on the intra prediction mode.