Title:
画像符号化装置、画像復号化装置、画像符号化方法、及び、画像復号化方法
Document Type and Number:
Japanese Patent JP5321439
Kind Code:
B2
Abstract:
An image encoding device has: a displacement vector detection unit 103 for searching for a signal with high correlation with an encoding target block using a locally-decoded image in an already encoded block so as to calculate, using a signal with the highest correlation as a displacement prediction signal, a displacement vector; a reduced-image displacement vector detection unit 104 for searching for a signal with high correlation with the encoding target block using a signal resulting from performing reduction at least either horizontally or vertically for the locally-decoded image in an already encoded block so as to obtain, using the signal with the highest correlation as the displacement prediction signal, the displacement vector, which is the displacement in a screen between a reduced encoding target block and a reduction displacement prediction signal; and a displacement prediction mode determination/signal generation unit 105 for selecting a signal with high correlation with the encoding target block from the displacement prediction signal and the reduction displacement prediction signal as a prediction signal.
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Inventors:
Motoharu Ueda
Application Number:
JP2009284017A
Publication Date:
October 23, 2013
Filing Date:
December 15, 2009
Export Citation:
Assignee:
Jvc kenwood corporation
International Classes:
H04N19/50; H04N19/12; H04N19/137; H04N19/147; H04N19/176; H04N19/196; H04N19/423; H04N19/503; H04N19/51; H04N19/567; H04N19/59; H04N19/593; H04N19/61; H04N19/625; H04N19/80; H04N19/91
Domestic Patent References:
| JP2005159947A | ||||
| JP9182082A | ||||
| JP6113291A |
Other References:
Siu-Leong Yu and Christos Chrysafis,New Intra Prediction using Intra-Macroblock Motion Compensation,Joint Video Team (JVT) of ISO/IEC MPEG & ITU-T VCEG(ISO/IEC JTC1/SC29/WG11 and ITU-T SG16 Q.6),3rd Meeting: Fairfax, Virginia, USA,2002年 5月,JVT-C151d1,pp.1-3
Attorney, Agent or Firm:
Sakaki Morishita