Method of generating reconstructed block

Patent metadata

Field	Value
Publication number	US-9014262-B2
Application number	US-201214349465-A
Country	US
Kind code	B2
Filing date	Nov 2, 2012
Priority date	Nov 4, 2011
Publication date	Apr 21, 2015
Grant date	Apr 21, 2015

Abstract

Provided is a method that derives an intra prediction mode of a prediction unit, determines a size of a current block using transform size information, generates a prediction block of the current block according to the intra prediction mode, generating a residual block of the current block according to the intra prediction mode and generating a reconstructed block of the current block using the prediction block and the residual block. The sizes of the prediction block and the residual block are set equal to a size of a transform unit. Therefore, the distance of intra prediction becomes short, and the amount of coding bits of residual block is reduced by generating a prediction block very similar to original block. Also, the signaling bits required to signal intra prediction mode decrease by generating MPM group adaptively according to the neighboring intra prediction modes.

First claim

The invention claimed is:

1. A method of generating a reconstructed block, comprising:
deriving an intra prediction mode of a prediction unit using three intra prediction modes which are determined by left and above intra prediction modes;
determining a size of a current block using transform size information;
generating a prediction block of the current block according to the intra prediction mode;
generating a residual block of the current block according to the intra pred…

Assignees

• Genip Pte Ltd
• Infobridge Pte Ltd

Inventors

• Oh Soo Mi
• Yang Moonock

Classifications

• H04N19/107

  Electricity · mapped topic

• H04N19/105

  Electricity · mapped topic

• H04N19/18

  Electricity · mapped topic

• H04N19/70

  Electricity · mapped topic

• H04N19/13

  Electricity · mapped topic