Title:
PICTURE INFORMATION ENCODER AND PICTURE INFORMATION ENCODING METHOD
Document Type and Number:
Japanese Patent JP2008219205
Kind Code:
A
Abstract:
To minimize quantization degradation of mosquito noise or the like while faithfully reproducing input picture information while reducing a calculation amount.
By an orthogonal transformation size judgement part 13, an orthogonal transformation size is judged utilizing the feature amounts of the input picture information such as macroblock activity, macroblock dispersion and the number of edges included in a macroblock, and the orthogonal transformation size in an orthogonal transformation part 15 is determined beforehand.
Inventors:
TANAKA JUNICHI
SATO KAZUFUMI
YAGASAKI YOICHI
SATO KAZUFUMI
YAGASAKI YOICHI
Application Number:
JP2007050779A
Publication Date:
September 18, 2008
Filing Date:
February 28, 2007
Export Citation:
Assignee:
SONY CORP
International Classes:
H04N19/50; H04N19/11; H04N19/119; H04N19/127; H04N19/136; H04N19/14; H04N19/176; H04N19/196; H04N19/46; H04N19/503; H04N19/51; H04N19/593; H04N19/60; H04N19/61; H04N19/625; H04N19/70; H04N19/80; H04N19/82; H04N19/86; H04N19/91
Attorney, Agent or Firm:
Akira Koike
Eiichi Tamura
Seiji Iga
Eiichi Tamura
Seiji Iga
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