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Title:
IMAGE ENCODING METHOD AND IMAGE ENCODING APPARATUS
Document Type and Number:
WIPO Patent Application WO/2003/005730
Kind Code:
A1
Abstract:
An image encoding method and an image encoding apparatus capable of improving reproduction image quality by adaptively varying the bit amount assigned when encoding an image, according to the image feature. Each image of an image group is encoded at a variable bit rate by an in−screen encoding or prediction encoding. The target bit rate of the in−screen encoding is calculated according to the image feauture.

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Inventors:
MORIMOTO NAOKI (JP)
YAMADA MAKOTO (JP)
Application Number:
PCT/JP2002/006610
Publication Date:
January 16, 2003
Filing Date:
June 28, 2002
Export Citation:
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Assignee:
SONY CORP (JP)
MORIMOTO NAOKI (JP)
YAMADA MAKOTO (JP)
International Classes:
H04N5/92; G06T9/00; H03M7/30; H03M7/36; H04N19/115; H04N19/126; H04N19/134; H04N19/154; H04N19/172; H04N19/189; H04N19/196; H04N19/50; H04N19/593; H04N19/61; H04N19/625; H04N19/85; H04N19/91; (IPC1-7): H04N7/32
Domestic Patent References:
WO1999003282A11999-01-21
Foreign References:
JP2001028753A2001-01-30
JPH114444A1999-01-06
JPH0646270A1994-02-18
JP2001084698A2001-03-30
JP2000287210A2000-10-13
Attorney, Agent or Firm:
Nakamura, Tomoyuki c/o Miyoshi International Patent Office (9th Floor Toranomon Daiichi Building, 2-3, Toranomon 1-chom, Minato-ku Tokyo, JP)
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