Method for performing hybrid multihypothesis prediction during video coding of a coding unit, and associated apparatus

摘要

A method for performing hybrid multihypothesis prediction during video coding of a coding unit includes: processing a plurality of sub-coding units in the coding unit; and performing motion vector derivation of a portion of the sub-coding units. More particularly, the step of performing motion vector derivation of the portion of the sub-coding units further includes: deriving a plurality of motion vectors for multihypothesis motion-compensated prediction of a specific sub-coding unit of the portion of the sub-coding units from at least one other sub-coding/coding unit or by performing motion estimation. The method further includes performing multihypothesis motion-compensated prediction on the specific sub-coding unit according to the plurality of motion vectors, and more particularly, includes utilizing a linear combination of a plurality of pixel values derived from the plurality of motion vectors as a predicted pixel value of the specific sub-coding unit. An associated apparatus is also provided.

主权项

1. A method for performing hybrid multihypothesis prediction during video coding of a coding unit, the method comprising:
processing a plurality of sub-coding units in the coding unit; performing motion vector derivation of a portion of the sub-coding units, wherein the step of performing motion vector derivation of the portion of the sub-coding units further comprises:
deriving a plurality of motion vectors for multihypothesis motion-compensated prediction of a specific sub-coding unit of the portion of the sub-coding units, at least one of motion vectors is the motion vector of one other sub-coding/coding unit, and the one other sub-coding/coding unit is coded before the corresponding motion vector is derived for multihypothesis motion-compensated prediction of the specific sub-coding unit; and performing multihypothesis motion-compensated prediction on the specific sub-coding unit according to the plurality of motion vectors, wherein the step of performing multihypothesis motion-compensated prediction on the specific sub-coding unit according to the plurality of motion vectors further comprises:
utilizing a linear combination of a plurality of pixel values derived from the plurality of motion vectors as a predicted pixel value of the specific sub-coding unit.