Title:
DMM PREDICTION UNIT, IMAGE DECODING DEVICE, AND IMAGE ENCODING DEVICE
Document Type and Number:
WIPO Patent Application WO/2015/199040
Kind Code:
A1
Abstract:
A look-up table that is required in order to maintain a partition pattern list during DMM1 prediction has a large size, and it is therefore difficult to arrange said look-up table in a cache. As a result, a problem occurs in which external memory is accessed each time that the look-up table is accessed and processing speed decreases. During DMM1 prediction, a DMM prediction unit according to the present invention erases a look-up table for maintaining a partition pattern having a first size, scales a partition pattern having a second size that is smaller than the first size so that said partition pattern has the first size, and generates a partition pattern having the first size.
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Inventors:
TSUKUBA TAKESHI
IKAI TOMOHIRO
IKAI TOMOHIRO
Application Number:
PCT/JP2015/067921
Publication Date:
December 30, 2015
Filing Date:
June 22, 2015
Export Citation:
Assignee:
SHARP KK (JP)
International Classes:
H04N19/597; H04N13/00; H04N19/70
Domestic Patent References:
| WO2014005248A1 | 2014-01-09 |
Other References:
GERHARD TECH ET AL.: "3D-HEVC Draft Text 4", 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-H1001-V2, 8TH MEETING, May 2014 (2014-05-01), Valencia, ES, pages i - x, 9-16, 22-43
WEIRAN LI ET AL.: "CE5.h related: Simplification on DMM1 pattern generation mechanism", 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-E0225R1, 5TH MEETING, July 2013 (2013-07-01), Vienna, AT, pages 1 - 8
XIAOZHEN ZHENG ET AL.: "Reference samples sub- sampling for SDC and DMM", JOINT 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-C154_R1, 3RD MEETING, January 2013 (2013-01-01), Geneva, CH, pages 1 - 5
TAKESHI TSUKUBA ET AL.: "Lookup table size reduction in DMM1", 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- I0110, 9TH MEETING, June 2014 (2014-06-01), Sapporo, JP, pages 1 - 9
WEIRAN LI ET AL.: "CE5.h related: Simplification on DMM1 pattern generation mechanism", 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-E0225R1, 5TH MEETING, July 2013 (2013-07-01), Vienna, AT, pages 1 - 8
XIAOZHEN ZHENG ET AL.: "Reference samples sub- sampling for SDC and DMM", JOINT 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-C154_R1, 3RD MEETING, January 2013 (2013-01-01), Geneva, CH, pages 1 - 5
TAKESHI TSUKUBA ET AL.: "Lookup table size reduction in DMM1", 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- I0110, 9TH MEETING, June 2014 (2014-06-01), Sapporo, JP, pages 1 - 9
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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