Title:
INTRA BLOCK COPY MERGE LIST SIMPLIFICATION
Document Type and Number:
WIPO Patent Application WO/2020/169082
Kind Code:
A1
Abstract:
A method for generating a list of merge candidates for Intra Block Copy (IBC) prediction is provided. A video codec receives data to be encoded or decoded as a current block of a current picture of a video. A plurality of spatially adjacent neighbouring blocks of the current block are coded before the current block. The video codec generates a list of merge candidates including intra picture candidates that are associated with motion information referencing pixels in the current picture. The intra picture candidates comprises candidates that are associated with some but not all of the two or more spatially adjacent neighbouring blocks of the current block. The video codec selects a merge candidate from the generated list. The video codec encodes or decodes the current block by using the motion information of the selected merge candidate to generate a prediction of the current block.
Inventors:
LIN YU-CHENG (CN)
CHEN CHUN-CHIA (CN)
HSU CHIH-WEI (CN)
CHEN CHUN-CHIA (CN)
HSU CHIH-WEI (CN)
Application Number:
PCT/CN2020/076174
Publication Date:
August 27, 2020
Filing Date:
February 21, 2020
Export Citation:
Assignee:
MEDIATEK INC (CN)
International Classes:
H04N19/52
Foreign References:
| US20170054996A1 | 2017-02-23 | |||
| CN108141605A | 2018-06-08 | |||
| CN106797466A | 2017-05-31 | |||
| US20140044171A1 | 2014-02-13 | |||
| EP3967040A1 | 2022-03-16 |
Other References:
L.ZHANG (BYTEDANCE), K.ZHANG (BYTEDANCE), H. LIU (BYTEDANCE), Y. WANG, P. ZHAO, D. HONG (BYTEDANCE): "CE4-related: History-based Motion Vector Prediction", 123. MPEG MEETING; 20180716 - 20180720; LJUBLJANA; (MOTION PICTURE EXPERT GROUP OR ISO/IEC JTC1/SC29/WG11), 18 July 2018 (2018-07-18), pages 1 - 5, XP030197495
XU XIAOZHONG ET AL.: "Intra Block Copy in HEVC Screen Content Coding Extensions", IEEE JOURNAL ON EMERGING AND SELECTED TOPICS IN CIRCUITS AND SYSTEMS, 1 December 2016 (2016-12-01)
YANG H ET AL.: "CE4: Summary report on inter prediction and motion vector coding", 125. MPEG MEETING, 10 January 2019 (2019-01-10)
XU X ET AL.: "CE4-related: Simplified merge candidate list for small blocks", 13TH JVET MEETING, 3 January 2019 (2019-01-03)
"Document: JVET-K0076; CE8-2.2: Current picture referencing using reference index signaling", JOINT VIDEO EXPERTS TEAM (JVET) OF ITU-T SG 16 WP 3 AND ISO/IEC JTC 1/SC 29/WG 11, 11TH MEETING, 10 July 2018 (2018-07-10)
X. XUS. LIUT. CHUANGY. HUANGS. LEIK. RAPAKAC. PANGV. SEREGINY. WANGM. KARCZEWICZ: "Intra Block Copy in HEVC Screen Content Coding Extensions", IEEE J. EMERG. SEL. TOPICS CIRCUITS SYST., vol. 6, no. 4, 2016, pages 409 - 419, XP011636923, DOI: 10.1109/JETCAS.2016.2597645
See also references of EP 3918803A4
XU XIAOZHONG ET AL.: "Intra Block Copy in HEVC Screen Content Coding Extensions", IEEE JOURNAL ON EMERGING AND SELECTED TOPICS IN CIRCUITS AND SYSTEMS, 1 December 2016 (2016-12-01)
YANG H ET AL.: "CE4: Summary report on inter prediction and motion vector coding", 125. MPEG MEETING, 10 January 2019 (2019-01-10)
XU X ET AL.: "CE4-related: Simplified merge candidate list for small blocks", 13TH JVET MEETING, 3 January 2019 (2019-01-03)
"Document: JVET-K0076; CE8-2.2: Current picture referencing using reference index signaling", JOINT VIDEO EXPERTS TEAM (JVET) OF ITU-T SG 16 WP 3 AND ISO/IEC JTC 1/SC 29/WG 11, 11TH MEETING, 10 July 2018 (2018-07-10)
X. XUS. LIUT. CHUANGY. HUANGS. LEIK. RAPAKAC. PANGV. SEREGINY. WANGM. KARCZEWICZ: "Intra Block Copy in HEVC Screen Content Coding Extensions", IEEE J. EMERG. SEL. TOPICS CIRCUITS SYST., vol. 6, no. 4, 2016, pages 409 - 419, XP011636923, DOI: 10.1109/JETCAS.2016.2597645
See also references of EP 3918803A4
Attorney, Agent or Firm:
BEIJING SANYOU INTELLECTUAL PROPERTY AGENCY LTD. (CN)
Download PDF: