The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Nov. 06, 2018

Filed:

Nov. 13, 2014
Applicant:

Mediatek Inc., Hsin-Chu, TW;

Inventors:

Ching-Yeh Chen, Taipei, TW;

Chia-Yang Tsai, Zhubei, TW;

Yu-Wen Huang, Taipei, TW;

Assignee:

MediaTek Inc., Hsin-Chu, TW;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N 19/117 (2014.01); H04N 19/82 (2014.01); H04N 19/176 (2014.01); H04N 19/70 (2014.01); H04N 19/119 (2014.01); H04N 19/196 (2014.01); H04N 19/14 (2014.01); H04N 19/172 (2014.01); H04N 19/182 (2014.01); H04N 19/18 (2014.01); H04N 19/68 (2014.01);
U.S. Cl.
CPC ...
H04N 19/82 (2014.11); H04N 19/117 (2014.11); H04N 19/119 (2014.11); H04N 19/14 (2014.11); H04N 19/172 (2014.11); H04N 19/176 (2014.11); H04N 19/18 (2014.11); H04N 19/182 (2014.11); H04N 19/196 (2014.11); H04N 19/68 (2014.11); H04N 19/70 (2014.11);
Abstract

A method of adaptive loop filtering with implicit sample-based On/Off control for reconstructed video to improve the performance is disclosed. In one embodiment, each pixel of the video data associated with the reconstructed current image unit is classified into a first group and a second group. Adaptive Loop Filter (ALF) is then applied to these pixels belonging to the first group. For pixels in the second group, ALF is not applied. The image unit may correspond to one coding tree block (CTB) or one coding tree unit (CTU). Various classification means for classifying each pixel into a first group or a second group have also been disclosed. The adaptive loop filtering with implicit sample-based On/Off control may also be used as an additional mode in a system supporting block-based On/Off control.


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