Title:
IMAGE ENCODING METHOD AND IMAGE ENCODING DEVICE
Document Type and Number:
WIPO Patent Application WO/2006/082690
Kind Code:
A1
Abstract:
In an image encoding method capable of dividing a macro block into partitions of various sizes, it is possible to appropriately suppress a motion vector code volume without degrading the encoding efficiency. In order to suppress increase of a code volume and increase of processing volume accompanying generation of a plenty of motion vectors when a bidirectional prediction is selected, a motion estimation unit (112) selects an optimal prediction method among the prediction method candidates decided by the prediction method candidate decision unit (13) and performs control as follows. When motion compensation is performed by using a partition of a large size, both of the bidirectional prediction and the unidirectional prediction are allowed. However, when motion compensation is performed by using a partition of a small size, the bidirectional prediction is inhibited and only the unidirectional prediction is allowed.
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Inventors:
MATSUDA NAOKI
SHIBAHARA YOUJI
KADONO SHINYA
SHIBAHARA YOUJI
KADONO SHINYA
Application Number:
PCT/JP2005/023788
Publication Date:
August 10, 2006
Filing Date:
December 26, 2005
Export Citation:
Assignee:
MATSUSHITA ELECTRIC IND CO LTD (JP)
MATSUDA NAOKI
SHIBAHARA YOUJI
KADONO SHINYA
MATSUDA NAOKI
SHIBAHARA YOUJI
KADONO SHINYA
International Classes:
H04N19/50; H04N19/105; H04N19/12; H04N19/127; H04N19/134; H04N19/136; H04N19/14; H04N19/146; H04N19/159; H04N19/176; H04N19/186; H04N19/189; H04N19/196; H04N19/503; H04N19/51; H04N19/577; H04N19/61; H04N19/625; H04N19/91
Foreign References:
| JP2000013802A | 2000-01-14 | |||
| JP2004349855A | 2004-12-09 | |||
| JP2000032468A | 2000-01-28 |
Attorney, Agent or Firm:
Nii, Hiromori c/o Nii, Patent Firm (6F Tanaka Ito Pia Shin-Osaka Bldg., 3-10,
Nishi Nakajima 5-chome, Yodogawa-k, Osaka-city Osaka 11, JP)
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