US 9,961,364 B2 · Method and apparatus of temporal motion vector prediction

Abstract

An apparatus and method for temporal motion vector prediction for a current block in a picture are disclosed. In the present method, one temporal block in a first reference picture in a first list selected from a list group comprising list 0 and list 1 is determined. When the determined temporal block has at least one motion vector, a candidate set is determined based on the motion vector of the temporal block. The temporal motion vector predictor or temporal motion vector predictor candidate or temporal motion vector or temporal motion vector candidate for the current block is determined from the candidate set by checking a presence of a motion vector pointing to a reference picture in a first specific list in said at least one motion vector, wherein the first specific list is selected from the list group based on a priority order.

Claims20

Dependent claims

A method of deriving a temporal motion vector predictor or temporal motion vector predictor candidate or temporal motion vector or temporal motion vector candidate for a current block in a current picture, the method comprising:

determining one temporal block in a first reference picture in a first list selected from a list group comprising list 0 and list 1;
when said one temporal block has at least one motion vector, determining a candidate set based on said at least one motion vector;
checking for a motion vector pointing to a reference picture in each one of a plurality of specific lists in said at least one motion vector until a presence of the motion vector is discovered in one of the plurality of specific lists, wherein each one of the plurality of specific lists is selected from the list group based on a priority order;
selecting the motion vector from the candidate set for the current block;
and
determining the temporal motion vector predictor or temporal motion vector predictor candidate or temporal motion vector or temporal motion vector candidate for the current block by scaling the selected motion vector.

3 more elements

An apparatus of deriving a temporal motion vector predictor or temporal motion vector predictor candidate or temporal motion vector or temporal motion vector candidate for a current block in a current picture, the apparatus comprising at least one electronic circuit configured to:

determine one temporal block in a first reference picture in a first list selected from a list group comprising list 0 and list 1;
when said one temporal block has at least one motion vector, determine a candidate set based on said at least one motion vector;
checking for a motion vector pointing to a reference picture in each one of a plurality of specific lists in said at least one motion vector until a presence of the motion vector is discovered in one of the plurality of specific lists, wherein each one of the plurality of specific lists is selected from the list group based on a priority order;
select the motion vector from the candidate set for the current block;
determine the temporal motion vector predictor or temporal motion vector predictor candidate or temporal motion vector or temporal motion vector candidate for the current block by scaling the selected motion vector.

2 more elements

Dependencies are inferred from the claim text.

Method and apparatus of temporal motion vector prediction

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Method and apparatus of temporal motion vector prediction

Life of this patent

Abstract

Claims20