Title:
IMAGE DECODING DEVICE AND IMAGE CODING DEVICE
Document Type and Number:
WIPO Patent Application WO/2015/056719
Kind Code:
A1
Abstract:
In view synthesis prediction (VSP), when a 12×16 or a 16×12 block was selected in a partition mode of a coding unit (CU), said partition mode being known as non-rectangular partitioning (AMP), a problem was encountered wherein a motion compensation block that is smaller than the HEVC minimum PU size is generated, said motion compensation block being necessary for 4×4 unit processing. The present invention reduces the amount of computation and improves coding efficiency in view synthesis prediction. This image decoding device, which generates and decodes prediction images for a target prediction block, comprises a view synthesis prediction unit that is used in view synthesis prediction and generates displacement. The view synthesis prediction unit sets the sub-block size according to whether the prediction block height or width is a multiple of 8. The view synthesis prediction unit uses the sub-block size to reference the depth and derive a depth-based displacement.
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Inventors:
IKAI TOMOHIRO
YAMAMOTO YOSHIYA
YAMAMOTO YOSHIYA
Application Number:
PCT/JP2014/077454
Publication Date:
April 23, 2015
Filing Date:
October 15, 2014
Export Citation:
Assignee:
SHARP KK (JP)
International Classes:
H04N19/52; H04N19/597
Domestic Patent References:
| WO2013103541A1 | 2013-07-11 |
Other References:
SHINYA SHIMIZU ET AL.: "3D-CE1.h: Adaptive block partitioning for VSP", JOINT COLLABORATIVE TEAM ON 3D VIDEO CODING EXTENSIONS OF ITU-T SG 16 WP 3 AND ISO/IEC JTC 1/SC 29/WG 11, JCT3V-E0207R1, 5TH MEETING, July 2013 (2013-07-01), VIENNA, AT, pages 1 - 3
YICHEN ZHANG ET AL.: "CE1.h: Forward Block- based View Synthesis Prediction", JOINT COLLABORATIVE TEAM ON 3D VIDEO CODING EXTENSIONS OF ITU-T SG 16 WP 3 AND ISO/IEC JTC 1/SC 29/WG 11, JCT3V-E0205_V3, 5TH MEETING, July 2013 (2013-07-01), INCHEON, AU, pages 1 - 6
CHUN-FU CHEN ET AL.: "3D-HEVC: Adaptive Virtual Depth Block Partition for View Synthesis Prediction and Corresponding Complexity Analysis", JOINT COLLABORATIVE TEAM ON 3D VIDEO CODING EXTENSIONS OF ITU-T SG 16 WP 3 AND ISO/IEC JTC 1/SC 29/WG 11, JCT3V-D0089_R3, 4TH MEETING, April 2013 (2013-04-01), INCHEON, KR, pages 1 - 11
GERHARD TECH ET AL.: "3D-HEVC Draft Text 1", J OINT COLLABORATIVE TEAM ON 3D VIDEO CODING EXTENSION DEVELOPMENT OF ITU-T SG 16 WP 3 AND ISO/IEC JTC 1/SC 29/WG 11, JCT3V-E1001-V3, 5TH MEETING, September 2013 (2013-09-01), VIENNA, AT, pages 1 - 30 ,45-76
TOMOHIRO IKAI ET AL.: "CE1- related: VSP partitioning for AMP", JOINT COLLABORATIVE TEAM ON 3D VIDEO CODING EXTENSIONS OF ITU-T SG 16 WP 3 AND ISO/IEC JTC 1/SC 29/WG 11, JCT3V-F0102_R1, 6TH MEETING, October 2013 (2013-10-01), GENEVA, CH, pages 1 - 5
LI ZHANG ET AL.: "CE1 related: BVSP for asymmetric motion partitioning, Joint Collaborative Team on 3D Video Coding Extensions of ITU-T SG 16 WP 3 and ISO/IEC JTC 1/SC 29/WG 11", JCT3V-F0130, 6TH MEETING, October 2013 (2013-10-01), GENEVA, CH, pages 1 - 4
YICHEN ZHANG ET AL.: "CE1.h: Forward Block- based View Synthesis Prediction", JOINT COLLABORATIVE TEAM ON 3D VIDEO CODING EXTENSIONS OF ITU-T SG 16 WP 3 AND ISO/IEC JTC 1/SC 29/WG 11, JCT3V-E0205_V3, 5TH MEETING, July 2013 (2013-07-01), INCHEON, AU, pages 1 - 6
CHUN-FU CHEN ET AL.: "3D-HEVC: Adaptive Virtual Depth Block Partition for View Synthesis Prediction and Corresponding Complexity Analysis", JOINT COLLABORATIVE TEAM ON 3D VIDEO CODING EXTENSIONS OF ITU-T SG 16 WP 3 AND ISO/IEC JTC 1/SC 29/WG 11, JCT3V-D0089_R3, 4TH MEETING, April 2013 (2013-04-01), INCHEON, KR, pages 1 - 11
GERHARD TECH ET AL.: "3D-HEVC Draft Text 1", J OINT COLLABORATIVE TEAM ON 3D VIDEO CODING EXTENSION DEVELOPMENT OF ITU-T SG 16 WP 3 AND ISO/IEC JTC 1/SC 29/WG 11, JCT3V-E1001-V3, 5TH MEETING, September 2013 (2013-09-01), VIENNA, AT, pages 1 - 30 ,45-76
TOMOHIRO IKAI ET AL.: "CE1- related: VSP partitioning for AMP", JOINT COLLABORATIVE TEAM ON 3D VIDEO CODING EXTENSIONS OF ITU-T SG 16 WP 3 AND ISO/IEC JTC 1/SC 29/WG 11, JCT3V-F0102_R1, 6TH MEETING, October 2013 (2013-10-01), GENEVA, CH, pages 1 - 5
LI ZHANG ET AL.: "CE1 related: BVSP for asymmetric motion partitioning, Joint Collaborative Team on 3D Video Coding Extensions of ITU-T SG 16 WP 3 and ISO/IEC JTC 1/SC 29/WG 11", JCT3V-F0130, 6TH MEETING, October 2013 (2013-10-01), GENEVA, CH, pages 1 - 4
Attorney, Agent or Firm:
HARAKENZO WORLD PATENT & TRADEMARK (JP)
Patent business corporation HARAKENZO WORLD PATENT & TRADEMARK (JP)
Patent business corporation HARAKENZO WORLD PATENT & TRADEMARK (JP)
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