Moving picture coding and decoding method with replacement and temporal motion vectors

Patent metadata

Field	Value
Publication number	US-8948261-B2
Application number	US-201313889843-A
Country	US
Kind code	B2
Filing date	May 8, 2013
Priority date	Feb 10, 2011
Publication date	Feb 3, 2015
Grant date	Feb 3, 2015

Abstract

A moving picture coding method includes: coding a coding target block using a motion vector; generating motion vector predictors; and coding the motion vector using one of the motion vector predictors generated in the generating of the motion vector predictors. In the generating of the motion vector predictors, a replacement vector which replaces a temporal motion vector predictor is added to the motion vector predictors when it is impossible to obtain the temporal motion vector predictor from a block which is included in a coded picture different from the coding target picture and corresponds to the coding target block.

First claim

The invention claimed is:

1. A moving picture coding method for performing inter prediction coding on a coding target block included in a coding target picture, the moving picture coding method comprising:
coding the coding target block using a motion vector;
generating a plurality of motion vector predictors; and
coding the motion vector using one of the plurality of motion vector predictors generated in the generating,
wherein, in the generating, a replacement vector which…

Assignees

• Panasonic Ip Corp America

Inventors

• Sugio Toshiyasu
• Nishi Takahiro
• Shibahara Youji
• Sasai Hisao

Classifications

• H04N19/597 Primary

  Electricity · mapped topic

• H04N19/159

  Electricity · mapped topic

• H04N19/521

  Electricity · mapped topic

• H04N19/527

  Electricity · mapped topic

• H04N19/51 Primary

  Electricity · mapped topic