Title:
METHOD AND APPARATUS OF ADVANCED DE-BLOCKING FILTER IN VIDEO CODING
Document Type and Number:
WIPO Patent Application WO/2017/045580
Kind Code:
A1
Abstract:
A method and apparatus for adaptive de-blocking filter are disclosed. One or more parameters associated with a de-blocking filter are determined. De-blocking filter using the derived parameters are then applied to reconstructed blocks. Each set of parameters is used for each picture, slice, coding tree unit (CTU) or CU (coding unit). The parameters can be signalled in VPS (video parameter set), SPS (sequence parameter set), PPS (picture parameter set), slice header, CTU (coding tree unit) or CU (coding unit) of the video bitstream. The parameters correspond to one or more values used as thresholds, clipping boundaries, or both the thresholds and clipping boundaries for the de-blocking filter. In one embodiment, the parameters for the current picture are determined using a training process using a current coded picture a previous coded picture as training data.
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Inventors:
ZHANG KAI (CN)
AN JICHENG (CN)
HUANG HAN (CN)
AN JICHENG (CN)
HUANG HAN (CN)
Application Number:
PCT/CN2016/098834
Publication Date:
March 23, 2017
Filing Date:
September 13, 2016
Export Citation:
Assignee:
MEDIATEK SINGAPORE PTE LTD (SG)
ZHANG KAI (CN)
AN JICHENG (CN)
HUANG HAN (CN)
ZHANG KAI (CN)
AN JICHENG (CN)
HUANG HAN (CN)
International Classes:
H04N19/00
Foreign References:
| US20140341271A1 | 2014-11-20 | |||
| US20080002061A1 | 2008-01-03 | |||
| CN102655593A | 2012-09-05 | |||
| CN102792692A | 2012-11-21 | |||
| CN103269432A | 2013-08-28 | |||
| CN101854548A | 2010-10-06 | |||
| CN101409833A | 2009-04-15 |
Other References:
"SERIES H: AUDIOVISUAL AND MULTIMEDIA SYSTEMS, Infrastructure of Audiovisual Services-Coding of Moving, High Efficiency Video Coding, Recommendation ITU-T H.265", INTERNATIONAL TELECOMMUNICATION UNION, 30 April 2013 (2013-04-30), pages 34, 39, 40, 70, 152 - 154 and 161-163, XP055227899
NORKIN A., HEVC DEBLOCKING FILTER
BROSS B., HIGH EFFICIENCY VIDEO CODING (HEVC) TEXT SPECIFICATION DRAFT 8
HSU C.-W. ET AL., CE10.2.1: REDUCING ONE PIXEL LINE BUFFER BY MODIFIED DEBLOCKING FILTER FOR HORIZONTAL LCU BOUNDARIES
LM ERICSSON, INTRA FRAME CODING OF ADAPTIVE LOOP FILTER COEFFICIENTS Q6/16
CHEN J. ET AL., DESCRIPTION OF SCALABLE VIDEO CODING TECHNOLOGY PROPOSAL BY QUALCOMM (CONFIGURATION 2
NORKIN A., HEVC DEBLOCKING FILTER
BROSS B., HIGH EFFICIENCY VIDEO CODING (HEVC) TEXT SPECIFICATION DRAFT 8
HSU C.-W. ET AL., CE10.2.1: REDUCING ONE PIXEL LINE BUFFER BY MODIFIED DEBLOCKING FILTER FOR HORIZONTAL LCU BOUNDARIES
LM ERICSSON, INTRA FRAME CODING OF ADAPTIVE LOOP FILTER COEFFICIENTS Q6/16
CHEN J. ET AL., DESCRIPTION OF SCALABLE VIDEO CODING TECHNOLOGY PROPOSAL BY QUALCOMM (CONFIGURATION 2
Attorney, Agent or Firm:
BEIJING SANYOU INTELLECTUAL PROPERTY AGENCY LTD. (CN)
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