IMAGE DECODING METHOD, IMAGE ENCODING METHOD, IMAGE DECODING DEVICE, IMAGE ENCODING DEVICE, IMAGE DECODING PROGRAM, AND IMAGE ENCODING PROGRAM

Title:

IMAGE DECODING METHOD, IMAGE ENCODING METHOD, IMAGE DECODING DEVICE, IMAGE ENCODING DEVICE, IMAGE DECODING PROGRAM, AND IMAGE ENCODING PROGRAM

Document Type and Number:

WIPO Patent Application WO/2012/042650

Kind Code:

A1

Abstract:

An image decoding method for decoding an image that is segmented into a plurality of blocks. In said image decoding method: decoded information from decoded blocks is obtained from a storage means that stores both decoded information from decoded blocks in an image being decoded and decoded information from each block in decoded images; a decoded image is selected from among a plurality of decoded images such that the image being decoded lies between said decoded image and a reference image for said decoded image; decoded information from a prescribed block in the selected decoded image is obtained from the storage means; the obtained decoded information from decoded blocks and decoded information from a prescribed block is used to predict a reference mode which indicates the prediction direction of a block to be decoded, said block being capable of referring to decoded images in a plurality of directions; reference-mode information for determining the reference mode is decoded from encoded data; and the reference mode of the block to be decoded is determined from the predicted reference mode and the decoded reference-mode information.

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Inventors:

MIYOSHI HIDENOBU (JP)
KOYAMA JUNPEI (JP)
KAZUI KIMIHIKO (JP)
SHIMADA SATOSHI (JP)
NAKAGAWA AKIRA (JP)

Application Number:

PCT/JP2010/067165

Publication Date:

April 05, 2012

Filing Date:

September 30, 2010

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Assignee:

FUJITSU LTD (JP)
MIYOSHI HIDENOBU (JP)
KOYAMA JUNPEI (JP)
KAZUI KIMIHIKO (JP)
SHIMADA SATOSHI (JP)
NAKAGAWA AKIRA (JP)

International Classes:

H04N7/32

Domestic Patent References:

WO2010067529A1

2010-06-17

Foreign References:

JP2007116351A	2007-05-10
JP2008193501A	2008-08-21

Other References:

KEMAL UGUR ET AL.: "Joint Collaborative Team on Video Coding (JCT-VC) of ITU-T SG16 WP3 and ISO/IEC JTC1/SC29/WG11 1st Meeting", APPENDIX TO DESCRIPTION OF VIDEO CODING TECHNOLOGY, 15 April 2010 (2010-04-15), pages 34, Retrieved from the Internet [retrieved on 20101029]

Attorney, Agent or Firm:

ITOH, TADAHIKO (JP)
Tadahiko Ito (JP)

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Claims:

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