Title:
IMAGE ENCODING DEVICE, IMAGE ENCODING METHOD, IMAGE ENCODING PROGRAM, IMAGE DECODING DEVICE, IMAGE DECODING METHOD, AND IMAGE DECODING PROGRAM
Document Type and Number:
WIPO Patent Application WO/2020/137890
Kind Code:
A1
Abstract:
The present invention provides technology for improving encoding efficiency by performing block division that is suitable for image encoding and decoding. An image decoding device is provided with: motion information history memory in which a history of a plurality of pieces of motion information is stored; a predicted motion vector candidate derivation unit for deriving predicted motion vector candidates including a history predicted motion vector candidate from memory in which motion information for a decoded block is held; and a merge candidate derivation unit for deriving merge candidates including a history merge candidate from the memory in which the motion information for the decoded block is held, wherein said image decoding device is characterized in that motion information is stored in the motion information history memory when a predicted motion vector candidate is decoded, and motion information is not stored in the motion information history memory when a merge candidate is decoded.
More Like This:
Inventors:
FUKUSHIMA SHIGERU (JP)
KUMAKURA TORU (JP)
NAKAMURA HIROYA (JP)
TAKEHARA HIDEKI (JP)
SAKAZUME SATORU (JP)
KURASHIGE HIROYUKI (JP)
KUMAKURA TORU (JP)
NAKAMURA HIROYA (JP)
TAKEHARA HIDEKI (JP)
SAKAZUME SATORU (JP)
KURASHIGE HIROYUKI (JP)
Application Number:
PCT/JP2019/050108
Publication Date:
July 02, 2020
Filing Date:
December 20, 2019
Export Citation:
Assignee:
JVCKENWOOD CORP (JP)
International Classes:
H04N19/52; H04N19/70
Domestic Patent References:
| WO2020003278A1 | 2020-01-02 |
Other References:
LI ZHANG ET AL.: "CE4-related: History-based Motion Vector Prediction, Joint Video Experts Team (JVET) of ITU-T SG 16 WP 3 and ISO/IEC JTC 1/SC 29/WG 11", JVET-K0104-V5, 11TH MEETING, July 2018 (2018-07-01), Ljubljana, SI, pages 1 - 7
LI ZHANG ET AL.: "CE4: History-based Motion Vector Prediction (Test 4.4.7), Joint Video Experts Team (JVET) of ITU-T SG 16 WP 3 and ISO/IEC JTC 1/SC 29/ WG 11", JVET-L0266-V2, 12TH MEETING, October 2018 (2018-10-01), Macao, CN, pages 1 - 6
WEI-JUNG CHIEN ET AL.: "CE4-related: Modification on History-based Mode Vector Prediction, Joint Video Exploration Team (JVET) of ITU-T SG 16 WP 3 and ISO/IEC JTC 1/SC 29/WG 11", JVET-L0401_R3, 12TH MEETING, October 2018 (2018-10-01), Macao, CN, pages 1 - 5
LI ZHANG ET AL.: "History-based Motion Vector Prediction in Versatile Video Coding", 2019 DATA COMPRESSION CONFERENCE (DCC, March 2019 (2019-03-01), pages 43 - 52, XP033548557, DOI: 10.1109/DCC.2019.00012
LI ZHANG ET AL.: "CE4: History-based Motion Vector Prediction (Test 4.4.7), Joint Video Experts Team (JVET) of ITU-T SG 16 WP 3 and ISO/IEC JTC 1/SC 29/ WG 11", JVET-L0266-V2, 12TH MEETING, October 2018 (2018-10-01), Macao, CN, pages 1 - 6
WEI-JUNG CHIEN ET AL.: "CE4-related: Modification on History-based Mode Vector Prediction, Joint Video Exploration Team (JVET) of ITU-T SG 16 WP 3 and ISO/IEC JTC 1/SC 29/WG 11", JVET-L0401_R3, 12TH MEETING, October 2018 (2018-10-01), Macao, CN, pages 1 - 5
LI ZHANG ET AL.: "History-based Motion Vector Prediction in Versatile Video Coding", 2019 DATA COMPRESSION CONFERENCE (DCC, March 2019 (2019-03-01), pages 43 - 52, XP033548557, DOI: 10.1109/DCC.2019.00012
Attorney, Agent or Firm:
MATSUNUMA Yasushi et al. (JP)
Download PDF: