Title:
BITSTREAM CONFORMANCE CONSTRAINTS FOR INTRA BLOCK COPY IN VIDEO CODING
Document Type and Number:
WIPO Patent Application WO/2021/004496
Kind Code:
A1
Abstract:
A method of processing visual media includes performing a conversion between a current video block of a current picture of a visual media data and a bitstream representation of the visual media data using a buffer comprising reference samples from the current picture for derivation of a prediction block of the current video block. The conversion is based according to rule which specifies that, for the bitstream representation to conform the rule, a reference sample in the buffer is to satisfy a bitstream conformance constraint.
Inventors:
XU JIZHENG (US)
ZHANG LI (US)
ZHANG KAI (US)
LIU HONGBIN (CN)
WANG YUE (CN)
ZHANG LI (US)
ZHANG KAI (US)
LIU HONGBIN (CN)
WANG YUE (CN)
Application Number:
PCT/CN2020/100998
Publication Date:
January 14, 2021
Filing Date:
July 09, 2020
Export Citation:
Assignee:
BEIJING BYTEDANCE NETWORK TECH CO LTD (CN)
BYTEDANCE INC (US)
BYTEDANCE INC (US)
International Classes:
H04N19/00
Domestic Patent References:
| WO2016200984A1 | 2016-12-15 |
Foreign References:
| CN106416250A | 2017-02-15 | |||
| CN105556967A | 2016-05-04 |
Other References:
GAO (HUAWEI) H; KARABUTOV (HUAWEI) A; ESENLIK (HUAWEI) S; IKONIN (HUAWEI) S; WANG (HUAWEI) B; KOTRA (HUAWEI) A M; ALSHINA (HUAWEI): "CE8-related: Dedicated IBC reference buffer without bitstream restrictions", 15. JVET MEETING; 20190703 - 20190712; GOTHENBURG; (THE JOINT VIDEO EXPLORATION TEAM OF ISO/IEC JTC1/SC29/WG11 AND ITU-T SG.16 ), no. JVET-O0248, 24 June 2019 (2019-06-24), Gothenburg SE, pages 1 - 7, XP030218955
LI (PANASONIC) J; LIM (PANASONIC) C S: "CE8-related: IBC modifications", 127. MPEG MEETING; 20190708 - 20190712; GOTHENBURG; (MOTION PICTURE EXPERT GROUP OR ISO/IEC JTC1/SC29/WG11), no. JVET-O0127_v1, 25 June 2019 (2019-06-25), Gothenburg SE, pages 1 - 11, XP030221995
XU (BYTEDANCE) J; ZHANG L; ZHANG K; LIU H; WANG (BYTEDANCE) Y: "Non-CE8: On IBC reference buffer design", 14. JVET MEETING; 20190319 - 20190327; GENEVA; (THE JOINT VIDEO EXPLORATION TEAM OF ISO/IEC JTC1/SC29/WG11 AND ITU-T SG.16 ), no. JVET-N0472, 13 March 2019 (2019-03-13), Geneva CH, pages 1 - 4, XP030203116
GAO (HUAWEI) H ET AL.: "Bitstream conformance with a virtual IBC buffer concept", 15. JVET MEETING, no. JVET-01170, 10 July 2019 (2019-07-10), Retrieved from the Internet
BROSS B ET AL.: "Versatile Video Coding (Draft 5", 14. JVET MEETING, 1 March 2019 (2019-03-01), pages 1 - 406, Retrieved from the Internet
See also references of EP 3981146A4
LI (PANASONIC) J; LIM (PANASONIC) C S: "CE8-related: IBC modifications", 127. MPEG MEETING; 20190708 - 20190712; GOTHENBURG; (MOTION PICTURE EXPERT GROUP OR ISO/IEC JTC1/SC29/WG11), no. JVET-O0127_v1, 25 June 2019 (2019-06-25), Gothenburg SE, pages 1 - 11, XP030221995
XU (BYTEDANCE) J; ZHANG L; ZHANG K; LIU H; WANG (BYTEDANCE) Y: "Non-CE8: On IBC reference buffer design", 14. JVET MEETING; 20190319 - 20190327; GENEVA; (THE JOINT VIDEO EXPLORATION TEAM OF ISO/IEC JTC1/SC29/WG11 AND ITU-T SG.16 ), no. JVET-N0472, 13 March 2019 (2019-03-13), Geneva CH, pages 1 - 4, XP030203116
GAO (HUAWEI) H ET AL.: "Bitstream conformance with a virtual IBC buffer concept", 15. JVET MEETING, no. JVET-01170, 10 July 2019 (2019-07-10), Retrieved from the Internet
BROSS B ET AL.: "Versatile Video Coding (Draft 5", 14. JVET MEETING, 1 March 2019 (2019-03-01), pages 1 - 406, Retrieved from the Internet
See also references of EP 3981146A4
Attorney, Agent or Firm:
LIU, SHEN & ASSOCIATES (CN)
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