Title:
METHOD AND DEVICE FOR DECIDING TRANSFORM COEFFICIENT SCAN ORDER ON BASIS OF HIGH FREQUENCY ZEROING
Document Type and Number:
WIPO Patent Application WO/2020/130514
Kind Code:
A1
Abstract:
An image decoding method performed by means of a decoding device according to the present disclosure comprises the steps of: receiving a bitstream comprising residual information; deriving quantized transform coefficients for a current block on the basis of the residual information comprised in the bitstream; deriving transform coefficients for the current block from the quantized transform coefficients on the basis of an inverse quantization procedure; deriving residual samples for the current block by applying inverse transformation to the derived transform coefficients; and generating a reconstructed picture on the basis of the residual samples for the current block.
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Inventors:
CHOI JUNGAH (KR)
KIM SEUNGHWAN (KR)
HEO JIN (KR)
YOO SUNMI (KR)
LI LING (KR)
CHOI JANGWON (KR)
KIM SEUNGHWAN (KR)
HEO JIN (KR)
YOO SUNMI (KR)
LI LING (KR)
CHOI JANGWON (KR)
Application Number:
PCT/KR2019/017723
Publication Date:
June 25, 2020
Filing Date:
December 13, 2019
Export Citation:
Assignee:
LG ELECTRONICS INC (KR)
International Classes:
H04N19/129; H04N19/132; H04N19/18; H04N19/60; H04N19/70
Foreign References:
| KR20180048739A | 2018-05-10 | |||
| KR20110046016A | 2011-05-04 | |||
| KR101743665B1 | 2017-06-05 | |||
| US20120140822A1 | 2012-06-07 | |||
| US9167253B2 | 2015-10-20 |
Other References:
B. BROSS ET AL.: "Versatile Video Coding (Draft 3", JOINT VIDEO EXPLORATION TEAM (JVET) OF ITU-T SG 16 WP 3 AND ISO/IEC JTC1/SC 29/WG 11 JVET-L1001, 12TH MEETING, 3 October 2018 (2018-10-03)
J. CHOI ET AL.: "Non-CE7: Simplified CSBF coding for large block-size transforms", JOINT VIDEO EXPLORATION TEAM (JVET) OF ITU-T SG 16 WP 3 AND ISO/IEC JTC1/SC 29/WG 11 JVET-M0250, 13TH MEETING, 9 January 2019 (2019-01-09)
F. BOSSEN ET AL.: "JVET common test conditions and software reference configurations for SDR video", JOINT VIDEO EXPLORATION TEAM (JVET) OF ITU-T SG 16 WP 3 AND ISO/IEC JTC1/SC 29/WG 11 JVET-L1010, 12TH MEETING, 3 October 2018 (2018-10-03)
H. SCHWARZ: "Crosscheck of JVET-M0251 (Non-CE7: Last position coding for large block-size transforms", JOINT VIDEO EXPLORATION TEAM (JVET) OF ITU-T SG 16 WP 3 AND ISO/IEC JTC1/SC 29/WG 11 JVET-M0646, 13TH MEETING, 9 January 2019 (2019-01-09)
See also references of EP 3700206A4
J. CHOI ET AL.: "Non-CE7: Simplified CSBF coding for large block-size transforms", JOINT VIDEO EXPLORATION TEAM (JVET) OF ITU-T SG 16 WP 3 AND ISO/IEC JTC1/SC 29/WG 11 JVET-M0250, 13TH MEETING, 9 January 2019 (2019-01-09)
F. BOSSEN ET AL.: "JVET common test conditions and software reference configurations for SDR video", JOINT VIDEO EXPLORATION TEAM (JVET) OF ITU-T SG 16 WP 3 AND ISO/IEC JTC1/SC 29/WG 11 JVET-L1010, 12TH MEETING, 3 October 2018 (2018-10-03)
H. SCHWARZ: "Crosscheck of JVET-M0251 (Non-CE7: Last position coding for large block-size transforms", JOINT VIDEO EXPLORATION TEAM (JVET) OF ITU-T SG 16 WP 3 AND ISO/IEC JTC1/SC 29/WG 11 JVET-M0646, 13TH MEETING, 9 January 2019 (2019-01-09)
See also references of EP 3700206A4
Attorney, Agent or Firm:
ENVISION PATENT & LAW FIRM (KR)
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