Title:
圧縮画像クロマ情報を改良するための方法およびシステム
Document Type and Number:
Japanese Patent JP5506901
Kind Code:
B2
Abstract:
Methods and computer programs for improving compressed image chroma information include selecting a luminance channel and two or more chroma channels, reducing the resolution of one or more of the chroma channels, applying a quantization parameter (QP) value to at leat one of the chroma channels, the chroma QP being biased with respect to the a QP value applied to the luminance channel. One chroma channel (X') may represent non-visible wavelengths.
Inventors:
Demos Gully A
Application Number:
JP2012285980A
Publication Date:
May 28, 2014
Filing Date:
December 27, 2012
Export Citation:
Assignee:
Dolby Laboratories Licensing Corporation
International Classes:
H04N11/04; H04N19/00; G06T3/40; G06T9/00; H04N7/12; H04N7/26; H04N7/30
Attorney, Agent or Firm:
Patent business corporation Prospec patent office