Title:
IMAGE DECODING DEVICE AND IMAGE CODING DEVICE
Document Type and Number:
WIPO Patent Application WO/2014/050554
Kind Code:
A1
Abstract:
The purpose of the invention is to reduce the amount of filter processing in a technique for improving the objective and subjective image quality of a predicted image by using an adaptive filter when generating the predicted image using a reference layer image.
An image decoding device decodes hierarchically encoded data in which image information relating to images, the qualities of which differ from layer to layer, is hierarchically encoded, and reconstructs an image in a target layer to be decoded. The image decoding device comprises: a predicted image generation means for, based on prediction parameters, generating a predicted image of the target layer using, as inputs, an already decoded reference layer image and an already decoded target layer image; and a filter means for performing adaptive filter processing on the reference layer image, said adaptive filter processing being based on filter parameters, and generating a filtered reference layer image. The predicted image generation means generates a predicted image using the filtered reference layer image only when the prediction parameters satisfy a predetermined condition.
More Like This:
Inventors:
YASUGI YUKINOBU
IKAI TOMOHIRO
IKAI TOMOHIRO
Application Number:
PCT/JP2013/074483
Publication Date:
April 03, 2014
Filing Date:
September 11, 2013
Export Citation:
Assignee:
SHARP KK (JP)
International Classes:
H04N19/117; H04N19/33; H04N19/50
Domestic Patent References:
| WO2011086836A1 | 2011-07-21 | |||
| WO2013161690A1 | 2013-10-31 |
Foreign References:
| JP2006295913A | 2006-10-26 | |||
| JP2010516199A | 2010-05-13 |
Other References:
KEMAL UGUR ET AL.: "Bilinear chroma interpolation for small block sizes", JOINT COLLABORATIVE TEAM ON VIDEO CODING (JCT-VC) OF ITU-T SG16 WP3 AND ISO/IEC JTC1/SC29/WG11, JCTVC-F242, 6TH MEETING, July 2011 (2011-07-01), TORINO
HYOMIN CHOI ET AL.: "Scalable structures and inter-layer predictions for HEVC scalable extension", JOINT COLLABORATIVE TEAM ON VIDEO CODING (JCT-VC) OF ITU-T SG16 WP3 AND ISO/IEC JTC1/SC29/WG11, JCTVC-F096_R4, 6TH MEETING, July 2011 (2011-07-01), TORINO, IT, pages 1 - 15
DANNY HONG ET AL.: "Scalability Support in HEVC", JOINT COLLABORATIVE TEAM ON VIDEO CODING (JCT- VC) OF ITU-T SG16 WP3 AND ISO/IEC JTC1/SC29/ WG11, JCTVC-F290R1, 6TH MEETING, July 2011 (2011-07-01), TORINO, IT, pages 1 - 15
TOMOYUKI YAMAMOTO ET AL.: "Description of scalable video coding technology proposal by SHARP (proposal 2)", JOINT COLLABORATIVE TEAM ON VIDEO CODING (JCT-VC) OF ITU-T SG16 WP3 AND ISO/IEC JTC1/SC29/WG11, JCTVC-K0032R1, LLTH MEETING, October 2012 (2012-10-01), SHANGHAI, CN, pages 1 - 18
HYOMIN CHOI ET AL.: "Scalable structures and inter-layer predictions for HEVC scalable extension", JOINT COLLABORATIVE TEAM ON VIDEO CODING (JCT-VC) OF ITU-T SG16 WP3 AND ISO/IEC JTC1/SC29/WG11, JCTVC-F096_R4, 6TH MEETING, July 2011 (2011-07-01), TORINO, IT, pages 1 - 15
DANNY HONG ET AL.: "Scalability Support in HEVC", JOINT COLLABORATIVE TEAM ON VIDEO CODING (JCT- VC) OF ITU-T SG16 WP3 AND ISO/IEC JTC1/SC29/ WG11, JCTVC-F290R1, 6TH MEETING, July 2011 (2011-07-01), TORINO, IT, pages 1 - 15
TOMOYUKI YAMAMOTO ET AL.: "Description of scalable video coding technology proposal by SHARP (proposal 2)", JOINT COLLABORATIVE TEAM ON VIDEO CODING (JCT-VC) OF ITU-T SG16 WP3 AND ISO/IEC JTC1/SC29/WG11, JCTVC-K0032R1, LLTH MEETING, October 2012 (2012-10-01), SHANGHAI, CN, pages 1 - 18
Attorney, Agent or Firm:
YONETSU, Kiyoshi et al. (JP)
Kiyoshi Yonezu (JP)
Kiyoshi Yonezu (JP)
Download PDF:
Previous Patent: ANTENNA DEVICE AND ELECTRONIC DEVICE PROVIDED WITH SAME
Next Patent: CONDUCTIVE PASTE AND PRINTED WIRING BOARD
Next Patent: CONDUCTIVE PASTE AND PRINTED WIRING BOARD