Title:
VIDEO ENCODING AND DECODING LOOP FILTER METHOD, VIDEO DECODING METHOD, AND APPARATUS
Document Type and Number:
WIPO Patent Application WO/2024/066386
Kind Code:
A1
Abstract:
Provided in the embodiments of the present disclosure are a video encoding and decoding loop filter method, a video decoding method, and an apparatus. The video encoding and decoding loop filter method comprises: by means of using a first filter, filtering a reconstructed image of the current image to obtain a first reconstructed video unit; by means of using a second filter, filtering the reconstructed image to obtain a second reconstructed video unit; according to neighborhood information contained in a convolution template of the first reconstructed video unit and of the second reconstructed video unit, determining a filter coefficient; and, on the basis of the convolution template and the filter coefficient, filtering the first reconstructed video unit, the second reconstructed video unit and the filter coefficient to obtain a third reconstructed video unit. The problem in the prior art of the poor filter adaptive effect caused by a weighted fusion operation for a single pixel point can be solved. During a filter correction process, the convolution-based filter mode may add more adjacent pixel information as much as possible, allowing a reconstructed value to better approach an original value and thus achieving the better output image quality.
Inventors:
HUANG CHENG (CN)
ZHOU YI (CN)
GU CHENGMING (CN)
ZOU WENJIE (CN)
BAI YAXIAN (CN)
ZHOU YI (CN)
GU CHENGMING (CN)
ZOU WENJIE (CN)
BAI YAXIAN (CN)
Application Number:
PCT/CN2023/094306
Publication Date:
April 04, 2024
Filing Date:
May 15, 2023
Export Citation:
Assignee:
ZTE CORP (CN)
International Classes:
H04N19/117; G06F17/15; H04N19/124; H04N19/82
Foreign References:
| CN104247434A | 2014-12-24 | |||
| CN101971632A | 2011-02-09 | |||
| US20120307898A1 | 2012-12-06 | |||
| US20190230354A1 | 2019-07-25 |
Attorney, Agent or Firm:
KANGXIN PARTNERS , P.C. (CN)
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