Title:
LUMA MAPPING- AND CHROMA SCALING-BASED VIDEO OR IMAGE CODING
Document Type and Number:
WIPO Patent Application WO/2020/231139
Kind Code:
A1
Abstract:
According to the disclosure of the present document, for LMCS, a linear reshaper may be used, LMCS codewords (or ranges thereof) may be restricted, and in the chroma scaling of the LMCS, a single chroma residual scaling factor may be used. Accordingly, the resources/cost (of software or hardware) necessary for an LMCS procedure may be minimized, and latency in coding may be eliminated, thus enabling the LMCS procedure to be efficiently performed.
More Like This:
Inventors:
ZHAO JIE (KR)
KIM SEUNGHWAN (KR)
KIM SEUNGHWAN (KR)
Application Number:
PCT/KR2020/006205
Publication Date:
November 19, 2020
Filing Date:
May 12, 2020
Export Citation:
Assignee:
LG ELECTRONICS INC (KR)
International Classes:
H04N19/186; H04N19/132; H04N19/593; H04N19/70; H04N19/82
Domestic Patent References:
| WO2019006300A1 | 2019-01-03 |
Foreign References:
| KR101641523B1 | 2016-07-21 | |||
| KR20180054782A | 2018-05-24 |
Other References:
L.U, TAORAN ET AL.: "CE12: Mapping functions (test CE12-1 and CE12-2", JVET-M0427 . JOINT VIDEO EXPERTS TEAM (JVET) OF ITU-T SG 16 WP 3 AND ISO/IEC JTC 1/SC 29/WG 11 13TH MEETING, 3 January 2019 (2019-01-03), Marrakech, MA., pages 1 - 13, XP030200493
FRANCOIS, EDOUARD ET AL.: "CE12-related: in-loop luma reshaping with approximate inverse mapping function", JVET-M0640. JOINT VIDEO EXPERTS TEAM (JVET) OF ITU-T SG 16 WP 3 AND ISO/SEC JTC 1/SC 29/WG 11 13TH MEETING, 11 January 2019 (2019-01-11), Marrakech, MA., pages 1 - 6, XP030201622
FRANCOIS, EDOUARD ET AL.: "CE12-related: in-loop luma reshaping with approximate inverse mapping function", JVET-M0640. JOINT VIDEO EXPERTS TEAM (JVET) OF ITU-T SG 16 WP 3 AND ISO/SEC JTC 1/SC 29/WG 11 13TH MEETING, 11 January 2019 (2019-01-11), Marrakech, MA., pages 1 - 6, XP030201622
Attorney, Agent or Firm:
ENVISION PATENT & LAW FIRM (KR)
Download PDF: