Title:
COLOR MOVING IMAGE ENCODING DEVICE, COLOR MOVING IMAGE DECODING DEVICE, COLOR MOVING IMAGE ENCODING METHOD, AND COLOR MOVING IMAGE DECODING METHOD
Document Type and Number:
Japanese Patent JP2013126145
Kind Code:
A
Abstract:
To improve encoding efficiencies of a luminance signal and a color difference signal by carrying out a compression treatment in a block size suitable for a luminance signal and a color difference signal.
For a color difference signal as well, similarly to a luminance signal, the number of color difference maximum conversion block division hierarchies, which is the maximum number of block division hierarchies concerning a color difference signal, is set according to an input image, and a color difference signal block is hierarchically divided up to the number of color difference maximum conversion block division hierarchies at most, and a compression treatment of the color difference signal is carried out in a block unit after the division.
Inventors:
SUGIMOTO KAZUO
MINESAWA AKIRA
SEKIGUCHI SHUNICHI
MINESAWA AKIRA
SEKIGUCHI SHUNICHI
Application Number:
JP2011274543A
Publication Date:
June 24, 2013
Filing Date:
December 15, 2011
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP
International Classes:
H04N19/50; H04N19/119; H04N19/146; H04N19/154; H04N19/157; H04N19/176; H04N19/186; H04N19/196; H04N19/423; H04N19/503; H04N19/51; H04N19/593; H04N19/60; H04N19/61; H04N19/80; H04N19/82; H04N19/91; H04N19/96
Attorney, Agent or Firm:
Hideaki Tazawa
Hamada Hatsune
Kume Teruyo
Hideo Kawamura
Hamada Hatsune
Kume Teruyo
Hideo Kawamura