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Title:
IMAGE DECODING DEVICE, IMAGE PROCESSING SYSTEM, AND IMAGE DECODING METHOD
Document Type and Number:
WIPO Patent Application WO/2016/088160
Kind Code:
A1
Abstract:
An image decoding device sends to an image encoding device a request for a first encoded stream that has been encoded using irreversible coding, decodes the first encoded stream, generates a first decoded image from a first encoded image obtained by encoding an image to be encoded, and outputs the first decoded image. The image decoding device then sends to the image encoding device a request for a second encoded stream. The second encoded stream includes a second encoded image obtained by: applying inter prediction to the image to be encoded, using a motion vector having a magnitude of zero, and using as a reference image a locally decoded image obtained by decoding the first encoded image; and encoding a prediction error using reversible coding. Then the image decoding device decodes the second encoded stream, generates a second decoded image from the second encoded image, uses an addition result obtained by adding the first decoded image to the second decoded image to generate a third decoded image corresponding to the first decoded image, and outputs the third decoded image.

Inventors:
KAZUI KIMIHIKO (JP)
KUBOTA TOMONORI (JP)
SHIMADA SATOSHI (JP)
YAMADA KOHJI (JP)
TAKEUCHI KENSHIRO (JP)
Application Number:
PCT/JP2014/081689
Publication Date:
June 09, 2016
Filing Date:
December 01, 2014
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Assignee:
FUJITSU LTD (JP)
International Classes:
H04N19/36; H04N19/44; H04N21/4728
Foreign References:
JPH09172643A1997-06-30
JP2000041149A2000-02-08
Other References:
JIANLE CHEN ET AL.: "SHVC Test Model 2 (SHM 2)", JOINT COLLABORATIVE TEAM ON VIDEO CODING (JCT-VC) OF ITU-T SG 16 WP3 AND ISO/IEC JTC1/SC29/WG11 13TH MEETING, Incheon, KR, pages 1 - 2
"Recommendation ITU-T H.265", HIGH EFFICIENCY VIDEO CODING, April 2013 (2013-04-01), pages 100
Attorney, Agent or Firm:
OSUGA, Yoshiyuki (JP)
Yoshiyuki Osuge (JP)
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