CPC H04N 19/167 (2014.11) [H04N 19/11 (2014.11)] | 20 Claims |
1. A method of controlling intra prediction for encoding a video sequence, the method being performed by at least one processor, and the method comprising:
determining a ratio of a width to a height of a coding unit;
based on the determined ratio being different than one, adding, to a table including a plurality of intra prediction modes corresponding to intra prediction angles, first wide angles toward a left portion of bottom edge of the coding unit, second wide angles toward a top portion of right edge of the coding unit, and additional intra prediction modes respectively corresponding to the first wide angles and the second wide angles; and
selecting, for encoding the video sequence, one of the plurality of intra prediction modes or one of the additional intra prediction modes added to the table,
wherein each of the first wide angles added to the table has an angular direction α with tan(α) equal to {35/32, 39/32, 45/32, 51/32, 57/32, 64/32, 73/32, 86/32, 102/32, 128/32, 171/32, 256/32, 341/32, 512/32}.
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