Title:
METHOD AND DEVICE FOR ENCODING VIDEO IMAGE, METHOD AND DEVICE FOR DECODING VIDEO IMAGE, AND PROGRAM THEREFOR
Document Type and Number:
WIPO Patent Application WO/2013/002144
Kind Code:
A1
Abstract:
In order to reduce the prediction error energy in motion-compensation inter-screen prediction and improve encoding efficiency, this video image encoding method employing motion compensation with decimal accuracy involves: a step of acquiring a motion vector by performing motion estimation; a step of calculating reference probabilities of decimal pixel positions as indicated by the acquired motion vector; a step of separating interpolation positions, which are the decimal pixel positions, into a plurality of groups on the basis of the calculated reference probabilities; a step of selecting, for each said group of interpolation positions, an interpolation filter coefficient to be used for creating an interpolation prediction image from among a plurality of interpolation filter coefficient candidates; a step of creating, for each said group of interpolation positions, said interpolation prediction image by using the selected interpolation filter coefficient, and performing encoding from said interpolation prediction image by employing said motion compensation with decimal accuracy; and a step of encoding information indicating the grouping of said interpolation positions and information indicating which interpolation filter coefficient is to be used in each said group of interpolation positions.
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Inventors:
MATSUO SHOHEI (JP)
BANDOH YUKIHIRO (JP)
TAKAMURA SEISHI (JP)
JOZAWA HIROHISA (JP)
BANDOH YUKIHIRO (JP)
TAKAMURA SEISHI (JP)
JOZAWA HIROHISA (JP)
Application Number:
PCT/JP2012/066010
Publication Date:
January 03, 2013
Filing Date:
June 22, 2012
Export Citation:
Assignee:
NIPPON TELEGRAPH & TELEPHONE (JP)
MATSUO SHOHEI (JP)
BANDOH YUKIHIRO (JP)
TAKAMURA SEISHI (JP)
JOZAWA HIROHISA (JP)
MATSUO SHOHEI (JP)
BANDOH YUKIHIRO (JP)
TAKAMURA SEISHI (JP)
JOZAWA HIROHISA (JP)
International Classes:
H04N19/50; H04N19/105; H04N19/117; H04N19/134; H04N19/137; H04N19/167; H04N19/196; H04N19/423; H04N19/503; H04N19/523; H04N19/553; H04N19/60; H04N19/61; H04N19/82; H04N19/91
Foreign References:
| JP2011082725A | 2011-04-21 |
Other References:
MATSUO,S. ET AL.: "Region-based adaptive interpolation filter", JOINT COLLABORATIVE TEAM ON VIDEO CODING (JCT-VC)OF ITU-T SG16 WP3 AND ISO/IEC JTC1/SC29/WG11 JCTVC-E078, 10 March 2011 (2011-03-10), XP030008584
KOSSENTINI,F. ET AL.: "An Adaptive Interpolation Filtering Technique", JOINT COLLABORATIVE TEAM ON VIDEO CODING (JCT-VC)OF ITU-T SG16 WP3 AND ISO/IEC JTC1/SC29/WG11 JCTVC-E284, 16 March 2011 (2011-03-16), XP030008790
SAKAE OKUBO; SHINYA KADONO; YOSHIHIRO KIKUCHI; TERUHIKO SUZUKI: "H.264/AVC Textbook: 3rd Revised Edition", IMPRESS R&D, 2009, pages 119 - 123
KEN MCCANN; WOO-JIN HAN; II-KOO KIM; JUNG-HYE MIN; ELENA ALSHINA; ALEXANDER ALSHIN; TAMMY LEE; JIANLE CHEN; VADIM SEREGIN; SUNIL L: "Samsung's Response to the Call for Proposals on Video Compression Technology", JCTVC-A124 R2, April 2010 (2010-04-01), pages 12 - 14
Y. VATIS; B. EDLER; D. T. NGUYEN; J. OSTERMANN: "Motion-and aliasing-compensated prediction using a two-dimensional non-separable adaptive Wiener interpolation filter", PROC. ICIP2005, IEEE INTERNATIONAL CONFERENCE ON IMAGE PROCESSING, September 2005 (2005-09-01), pages II 894 - 897
S. WITTMANN; T. WEDI: "Separable adaptive interpolation filter for video coding", PROC. ICIP2008, IEEE INTERNATIONAL CONFERENCE ON IMAGE PROCESSING, October 2008 (2008-10-01), pages 2500 - 2503, XP031374548
SHOHEI MATSUO; YUKIHIRO BANDOH; SEISHI TAKAMURA; HIROHISA JOZAWA: "Enhanced region-based adaptive interpolation filter", PROC. PCS2010, IEEE PICTURE CODING SYMPOSIUM, December 2010 (2010-12-01), pages 526 - 529, XP031885224, DOI: doi:10.1109/PCS.2010.5702554
FAOUZI KOSSENTINI; NADER MAHDI; HSAN GUERMAZI; MOHAMMED ALI BEN AYED: "An Adaptive Interpolation Filtering Technique", JCTVC-E284, 5TH JCT-VC MEETING, March 2011 (2011-03-01)
KOSSENTINI,F. ET AL.: "An Adaptive Interpolation Filtering Technique", JOINT COLLABORATIVE TEAM ON VIDEO CODING (JCT-VC)OF ITU-T SG16 WP3 AND ISO/IEC JTC1/SC29/WG11 JCTVC-E284, 16 March 2011 (2011-03-16), XP030008790
SAKAE OKUBO; SHINYA KADONO; YOSHIHIRO KIKUCHI; TERUHIKO SUZUKI: "H.264/AVC Textbook: 3rd Revised Edition", IMPRESS R&D, 2009, pages 119 - 123
KEN MCCANN; WOO-JIN HAN; II-KOO KIM; JUNG-HYE MIN; ELENA ALSHINA; ALEXANDER ALSHIN; TAMMY LEE; JIANLE CHEN; VADIM SEREGIN; SUNIL L: "Samsung's Response to the Call for Proposals on Video Compression Technology", JCTVC-A124 R2, April 2010 (2010-04-01), pages 12 - 14
Y. VATIS; B. EDLER; D. T. NGUYEN; J. OSTERMANN: "Motion-and aliasing-compensated prediction using a two-dimensional non-separable adaptive Wiener interpolation filter", PROC. ICIP2005, IEEE INTERNATIONAL CONFERENCE ON IMAGE PROCESSING, September 2005 (2005-09-01), pages II 894 - 897
S. WITTMANN; T. WEDI: "Separable adaptive interpolation filter for video coding", PROC. ICIP2008, IEEE INTERNATIONAL CONFERENCE ON IMAGE PROCESSING, October 2008 (2008-10-01), pages 2500 - 2503, XP031374548
SHOHEI MATSUO; YUKIHIRO BANDOH; SEISHI TAKAMURA; HIROHISA JOZAWA: "Enhanced region-based adaptive interpolation filter", PROC. PCS2010, IEEE PICTURE CODING SYMPOSIUM, December 2010 (2010-12-01), pages 526 - 529, XP031885224, DOI: doi:10.1109/PCS.2010.5702554
FAOUZI KOSSENTINI; NADER MAHDI; HSAN GUERMAZI; MOHAMMED ALI BEN AYED: "An Adaptive Interpolation Filtering Technique", JCTVC-E284, 5TH JCT-VC MEETING, March 2011 (2011-03-01)
Attorney, Agent or Firm:
SHIGA Masatake et al. (JP)
Masatake Shiga (JP)
Masatake Shiga (JP)
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