Method of determining motion vectors for bi-predictive image block

Patent metadata

Field	Value
Publication number	US-9106891-B2
Application number	US-201414531204-A
Country	US
Kind code	B2
Filing date	Nov 3, 2014
Priority date	May 3, 2002
Publication date	Aug 11, 2015
Grant date	Aug 11, 2015

Abstract

In one embodiment, the method includes determining a motion vector of a current image block equal to a motion vector of an image block based on a reference picture index indicating a reference picture for the image block. For example, the motion vector of the current image block may be equal to the motion vector of the image block if the reference picture index indicates a long-term reference picture for the image block.

First claim

What is claimed is:

1. A method of determining and using motion vectors for a bi-predictive image block, the method performed by a moving picture coding system and comprising:
obtaining, by the moving picture coding system, a motion vector of a co-located image block for the bi-predictive image block;
determining, by the moving picture coding system, motion vectors of the bi-predictive image block based on a type of a reference picture of the co-located image block,
the type b…

Assignees

• Lg Electronics Inc

Inventors

• Jeon Byeong Moon

Classifications

• H04N19/00715

  Electricity · mapped topic

• H04N19/51 Primary

  Electricity · mapped topic

• H04N19/159

  Electricity · mapped topic

• H04N19/00218

  Electricity · mapped topic

• H04N19/179

  Electricity · mapped topic