Title:
IMAGE ENCODING METHOD, IMAGE DECODING METHOD, IMAGE ENCODING DEVICE, IMAGE DECODING DEVICE AND PROGRAM
Document Type and Number:
WIPO Patent Application WO/2018/123317
Kind Code:
A1
Abstract:
This image encoding device 10 is provided with an entropy encoding unit 11 which entropy encodes data relating to a quad tree structure and data relating to a binary tree structure, and a size multiplexing unit 12 which multiplexes, into a bit stream, information indicating the minimum size of a partition based on a binary tree structure. The data relating to a binary tree structure includes data that indicates the partition direction of a block partitioned on the basis of the binary tree structure. The image encoding device 10 is further provided with an encoding prohibiting unit 13 which, if a block obtained by partitioning based on a quad tree structure is not partitioned on the basis of a binary tree structure, prohibits entropy encoding of the data in said block relating to a binary tree structure, and, when a block of a size equal to the minimum size is further partitioned on the basis of a binary tree structure, prohibits entropy encoding of data that indicates a partition direction in said block.
Inventors:
CHONO KEIICHI (JP)
Application Number:
PCT/JP2017/041088
Publication Date:
July 05, 2018
Filing Date:
November 15, 2017
Export Citation:
Assignee:
NEC CORP (JP)
International Classes:
H04N19/70; H04N19/13; H04N19/157; H04N19/176; H04N19/96
Domestic Patent References:
| WO2016203881A1 | 2016-12-22 |
Foreign References:
| JP2015177294A | 2015-10-05 | |||
| JP2012135017A | 2012-07-12 |
Other References:
"Recognition of date according to JVET- D1001-v3", JOINT VIDEO EXPLORATION TEAM, JEM REFERENCE SOFTWARE, 28 October 2016 (2016-10-28)
JIANLE CHEN ET AL.: "Algorithm Description of Joint Exploration Test Model 4", JOINT VIDEO EXPLORATION TEAM (JVET) OF ITU-T SG 16 WP 3, 15 October 2016 (2016-10-15) - 28 October 2016 (2016-10-28), pages 1 - 3, XP055517214
F. LE LEANNEC ET AL.: "Asymmetric Coding Units in QTBT", JOINT VIDEO EXPLORATION TEAM (JVET) OF ITU-T SG 16 WP 3, 10 October 2016 (2016-10-10), pages 1 - 10, XP055417365
XIANG LI ET AL.: "Multi-Type-Tree", JOINT VIDEO EXPLORATION TEAM (JVET) OF ITU-T SG 16 WP 3, no. JVET-D0117-v3, October 2016 (2016-10-01), Chengdu, CN, pages 1 - 3, XP030150367
HAN HUANG ET AL.: "EE 2.1: Quadtree plus binary tree structure integration with JEM tools", JOINT VIDEO EXPLORATION TEAM (JVET) OF ITU-T SG 16 WP 3, 26 May 2016 (2016-05-26), pages 1 - 5, XP030150107
RICKARD SJOBERG: "TMuC text on max CU size seems broken", JOINT COLLABORATIVE TEAM ON VIDEO CODING (JCT-VC) OF ITU-T SG 16 WP3- ISO/IEC JTCI/SC29/WG11- JCTVC-C318, 15 October 2010 (2010-10-15) - 12 September 2013 (2013-09-12), pages 1 - 3, XP055517626
BENJAMIN BROSS ET AL.: "High Efficiency Video Coding (HEVC) text specification draft 10 (for FDIS & Last Call", JOINT COLLABORATIVE TEAM ON VIDEO CODING (JCT-VC) OF ITU-T SG 16 WP 3, 23 January 2013 (2013-01-23), pages 44 - 47 , 89, XP030113948
JIANLE CHEN ET AL.: "Algorithm Description of Joint Exploration Test Model 4", JOINT VIDEO EXPLORATION TEAM (JVET) OF ITU-T SG 16 WP 3, 15 October 2016 (2016-10-15) - 28 October 2016 (2016-10-28), pages 1 - 3, XP055517214
F. LE LEANNEC ET AL.: "Asymmetric Coding Units in QTBT", JOINT VIDEO EXPLORATION TEAM (JVET) OF ITU-T SG 16 WP 3, 10 October 2016 (2016-10-10), pages 1 - 10, XP055417365
XIANG LI ET AL.: "Multi-Type-Tree", JOINT VIDEO EXPLORATION TEAM (JVET) OF ITU-T SG 16 WP 3, no. JVET-D0117-v3, October 2016 (2016-10-01), Chengdu, CN, pages 1 - 3, XP030150367
HAN HUANG ET AL.: "EE 2.1: Quadtree plus binary tree structure integration with JEM tools", JOINT VIDEO EXPLORATION TEAM (JVET) OF ITU-T SG 16 WP 3, 26 May 2016 (2016-05-26), pages 1 - 5, XP030150107
RICKARD SJOBERG: "TMuC text on max CU size seems broken", JOINT COLLABORATIVE TEAM ON VIDEO CODING (JCT-VC) OF ITU-T SG 16 WP3- ISO/IEC JTCI/SC29/WG11- JCTVC-C318, 15 October 2010 (2010-10-15) - 12 September 2013 (2013-09-12), pages 1 - 3, XP055517626
BENJAMIN BROSS ET AL.: "High Efficiency Video Coding (HEVC) text specification draft 10 (for FDIS & Last Call", JOINT COLLABORATIVE TEAM ON VIDEO CODING (JCT-VC) OF ITU-T SG 16 WP 3, 23 January 2013 (2013-01-23), pages 44 - 47 , 89, XP030113948
Attorney, Agent or Firm:
IWAKABE Fuyuki et al. (JP)
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