US 12,388,976 B2
Device and method for coding video data
Yu-Chiao Yang, Taipei (TW); and Chih-Yu Teng, Taipei (TW)
Assigned to SHARP KABUSHIKI KAISHA, Sakai (JP)
Filed by SHARP KABUSHIKI KAISHA, Sakai (JP)
Filed on Jun. 23, 2022, as Appl. No. 17/847,929.
Claims priority of provisional application 63/216,191, filed on Jun. 29, 2021.
Prior Publication US 2022/0417501 A1, Dec. 29, 2022
Int. Cl. H04N 19/105 (2014.01); H04N 19/159 (2014.01); H04N 19/176 (2014.01)
CPC H04N 19/105 (2014.11) [H04N 19/159 (2014.11); H04N 19/176 (2014.11)] 20 Claims
OG exemplary drawing
 
1. A method of decoding a bitstream by an electronic device, the method comprising:
receiving the bitstream;
determining a block unit from an image frame according to the bitstream;
generating a histogram of gradient (HoG) for selecting a plurality of intra candidate modes from a plurality of intra default modes for the block unit;
generating a template prediction for each of the plurality of intra candidate modes that is selected from the HoG based on an accumulated plurality of template amplitudes included in the HoG;
selecting, based on the generated template predictions, a plurality of prediction modes from the plurality of intra candidate modes, which is selected from the HoG based on the accumulated plurality of template amplitudes included in the HoG; and
reconstructing the block unit based on the plurality of prediction modes.