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Title:
画像符号化装置、画像復号装置、および画像符号化方法、画像復号方法
Document Type and Number:
Japanese Patent JP5138709
Kind Code:
B2
Abstract:
An image encoder including: a predicted-image generating unit that generates a predicted image in accordance with a plurality of prediction modes indicating predicted-image generating methods; a prediction-mode judging unit that evaluates prediction efficiency of a predicted image outputted from the predicted-image generating unit to judge a predetermined prediction mode; and an encoding unit that subjects an output of the prediction-mode judging unit to variable-length encoding. The prediction-mode judging unit judges, on the basis of a predetermined control signal, which one of a common prediction mode and a separate prediction mode is used for respective color components forming the input image signal, and multiplexes information on the control signal on a bit stream, multiplexes, when the common prediction mode is used, common prediction mode information on the bit stream, and multiplexes, when the common prediction mode is not used, prediction mode information for each of the color components on the bit stream.

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Inventors:
Yoshimi Moriya
Shunichi Sekiguchi
Kazuo Sugimoto
Etsuhisa Yamada
Kotaro Asai
Atsushi Murakami
Yuichi Dehara
Application Number:
JP2010003109A
Publication Date:
February 06, 2013
Filing Date:
January 08, 2010
Export Citation:
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Assignee:
Mitsubishi Electric Corporation
International Classes:
H04N11/04; H04N19/00; H04N19/105; H04N19/107; H04N19/11; H04N19/115; H04N19/136; H04N19/137; H04N19/154; H04N19/159; H04N19/189; H04N19/196; H04N19/46; H04N19/50; H04N19/503; H04N19/51; H04N19/593; H04N19/60; H04N19/61; H04N19/70; H04N19/80; H04N19/82; H04N19/91
Domestic Patent References:
JP2005039743A
JP5316363A
Foreign References:
WO2003101117A1
Other References:
Woo-Shik Kim,Adaptive Residue Transform and Sampling,Joint Video Team (JVT) of ISO/IEC MPEG & ITU-T VCEG (ISO/IEC JTC1/SC29/WG11 and ITU-T SG16 Q.6),Joint Video Team (JVT) of ISO/IEC MPEG & ITU-T VCEG,2004年 3月,JVT-K018,pp.1-5
Attorney, Agent or Firm:
Michiharu Soga
Suzuki Kenchi
Kajinami order
Kazuhiro Oyaku
Shunichi Ueda
Junichiro Yoshida
Satoshi Iino



 
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