Method of deriving a motion vector of a bi-predictive image...

Details Method of deriving a motion vector of a bi-predictive image... Method of deriving a motion vector of a bi-predictive image...

Filed on

2007-10-09

Date issued

2009-12-15

Examiner

Philippe, Gims S (Department: 2621)

Patent Class

Pulse or digital communications

SubClass

Bandwidth reduction or expansion

SubSubClass

Television or motion video signal

Other Related Categories

C375S240120

Type

Reexamination Certificate

Status

active

Patent number

07634007

Description

ABSTRACT:
In one embodiment, the method includes selecting a list1motion vector of the co-located block in a first list1reference picture as the motion vector for deriving list0and list1motion vectors of the bi-predictive block, if the co-located block only has the list1motion vector. The first list1reference picture is a type of reference picture permitted to be located temporally before or after a current picture, and the selected list1motion vector points to a second list1reference picture which is a reference picture of the first list1reference picture. The current picture includes the bi-predictive block. At least one motion vector of the bi-predictive block is derived by applying a bit operation to the selected motion vector.

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