Title:
METHOD AND APPARATUS OF SUBBLOCK DEBLOCKING IN VIDEO CODING
Document Type and Number:
WIPO Patent Application WO/2020/043193
Kind Code:
A1
Abstract:
Method and apparatus for constrained de-blocking filter are disclosed. According to one method, if a CU is partitioned into multiple sub-CUs, the de-blocking process is also applied to the sub-block boundaries inside the current filtered-reconstructed block. According to another method, if first reference samples used for the de-blocking process of a first boundary are to be modified by the de-blocking process of a second boundary, the first reference samples are replaced by padding samples that are not to be modified by the de-blocking process of the second boundary. According to yet another method, the de-blocking process is applied to a reconstructed block corresponding to a current block to result in a current filtered-reconstructed block regardless whether a boundary of the current block corresponds to an 8x8 sample grid boundaries.
Inventors:
TSAI CHIA-MING (CN)
HSU CHIH-WEI (CN)
CHEN CHING-YEH (CN)
CHUANG TZU-DER (CN)
HUANG YU-WEN (CN)
HSU CHIH-WEI (CN)
CHEN CHING-YEH (CN)
CHUANG TZU-DER (CN)
HUANG YU-WEN (CN)
Application Number:
PCT/CN2019/103708
Publication Date:
March 05, 2020
Filing Date:
August 30, 2019
Export Citation:
Assignee:
MEDIATEK INC (CN)
International Classes:
H04N11/04; H04N19/00
Domestic Patent References:
| WO2017045580A1 | 2017-03-23 | |||
| WO2018044142A1 | 2018-03-08 | |||
| WO2018038492A1 | 2018-03-01 |
Foreign References:
| US20060165181A1 | 2006-07-27 | |||
| CN101304526A | 2008-11-12 | |||
| CN1870752A | 2006-11-29 | |||
| JP2012151690A | 2012-08-09 | |||
| US20180184125A1 | 2018-06-28 |
Other References:
H. HUANG ET AL.: "EE2. 1: Quadtree plus binary tree structure integration with JEM tools", JOINT VIDEO EXPLORATION TEAM (JVET) OF ITU-T SG 16 WP 3 AND ISO/IEC JTC 1/SC 29/WG 11, 26 May 2016 (2016-05-26)
F. LE LEANNEC ET AL.: "Asymmetric Coding Units in QTBT", JOINT VIDEO EXPLORATION TEAM (JVET) OF ITU-T SG 16 WP 3 AND ISO/IEC JTC 1/SC 29/WG 11, 15 October 2016 (2016-10-15)
X. LI ET AL.: "Multi-Type-Tree", JOINT VIDEO EXPLORATION TEAM (JVET) OF ITU-T SG 16 WP 3 AND ISO/IEC JTC 1/SC 29/WG 11, 15 October 2016 (2016-10-15)
W.-J. CHIEN ET AL.: "Extension of Advanced Temporal Motion Vector Predictor", ITU-T SG16/Q6 DOCUMENT: VCEG-AZ10, June 2015 (2015-06-01)
X. XIU ET AL.: "CE4-related: One simplified design of advanced temporal motion vector prediction (ATMVP)", JOINT VIDEO EXPLORATION TEAM (JVET) OF ITU-T SG 16 WP 3 AND ISO/IEC JTC 1/SC 29/WG 11, 10 July 2018 (2018-07-10)
LIN ET AL.: "Affine transform prediction for next generation video coding", ITU-U, September 2015 (2015-09-01)
K. ANDERSSON ET AL., 11TH JVET MEETING, 11 July 2018 (2018-07-11)
See also references of EP 3841743A4
F. LE LEANNEC ET AL.: "Asymmetric Coding Units in QTBT", JOINT VIDEO EXPLORATION TEAM (JVET) OF ITU-T SG 16 WP 3 AND ISO/IEC JTC 1/SC 29/WG 11, 15 October 2016 (2016-10-15)
X. LI ET AL.: "Multi-Type-Tree", JOINT VIDEO EXPLORATION TEAM (JVET) OF ITU-T SG 16 WP 3 AND ISO/IEC JTC 1/SC 29/WG 11, 15 October 2016 (2016-10-15)
W.-J. CHIEN ET AL.: "Extension of Advanced Temporal Motion Vector Predictor", ITU-T SG16/Q6 DOCUMENT: VCEG-AZ10, June 2015 (2015-06-01)
X. XIU ET AL.: "CE4-related: One simplified design of advanced temporal motion vector prediction (ATMVP)", JOINT VIDEO EXPLORATION TEAM (JVET) OF ITU-T SG 16 WP 3 AND ISO/IEC JTC 1/SC 29/WG 11, 10 July 2018 (2018-07-10)
LIN ET AL.: "Affine transform prediction for next generation video coding", ITU-U, September 2015 (2015-09-01)
K. ANDERSSON ET AL., 11TH JVET MEETING, 11 July 2018 (2018-07-11)
See also references of EP 3841743A4
Attorney, Agent or Firm:
BEIJING SANYOU INTELLECTUAL PROPERTY AGENCY LTD. (CN)
Download PDF: