Method and apparatus for multi-line intra prediction
AssigneeTencent America LLC
InventorsLiang Zhao, Xin Zhao, Xiang Li, Shan Liu
Life of this patent
Estimating the term…
Abstract
A method of and an apparatus for controlling intra prediction for decoding of a video sequence are provided. The method includes, based on a reference line index signaling, to a decoder, a first reference line nearest to a coding unit, among a plurality of reference lines adjacent to the coding unit, applying intra smoothing on only the first reference line, based on the intra smoothing being applied only on the first reference line, applying intra prediction on the coding unit, and based on the intra prediction being applied on the coding unit, applying a position-dependent intra prediction combination (PDPC) on only the first reference line.
Claims20
A method of controlling intra prediction for decoding of a video sequence, the method being performed by at least one processor, and the method comprising:
- based on a reference line index signaling a first reference line nearest to a coding unit, among a plurality of reference lines adjacent to the coding unit, applying intra smoothing on one or more first reference lines comprising the first reference line, among the plurality of reference lines, while preventing application of the intra smoothing on one or more second reference lines other than the one or more first reference lines, among the plurality of reference lines;
- and
- based on the intra smoothing being applied on the one or more first reference lines, applying intra prediction on the coding unit.
An apparatus for controlling intra prediction for decoding of a video sequence, the apparatus comprising:
- at least one memory configured to store computer program code;
- and
- at least one processor configured to access the at least one memory and operate according to the computer program code, the computer program code comprising:
- first applying code configured to cause the at least one processor to, based on a reference line index signaling a first reference line nearest to a coding unit, among a plurality of reference lines adjacent to the coding unit, apply intra smoothing on one or more first reference lines comprising the first reference line, among the plurality of reference lines, while preventing application of the intra smoothing on one or more second reference lines other than the one or more first reference lines, among the plurality of reference lines;
- and
- second applying code configured to cause the at least one processor to, based on the intra smoothing being applied on the one or more first reference lines, apply intra prediction on the coding unit.
A non-transitory computer-readable storage medium storing instructions that cause a processor to:
- based on a reference line index signaling a first reference line nearest to a coding unit, among a plurality of reference lines adjacent to the coding unit, apply intra smoothing on one or more first reference lines comprising the first reference line, among the plurality of reference lines, while preventing application of the intra smoothing on one or more second reference lines other than the one or more first reference lines, among the plurality of reference lines;
- and
- based on the intra smoothing being applied on the one or more first reference lines, apply intra prediction on the coding unit.
Dependencies are inferred from the claim text.