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.
Patent No.:
Date of Patent:
Mar. 05, 2024
Filed:
Jun. 24, 2020
Applicant:
Telefonaktiebolaget Lm Ericsson (Publ), Stockholm, SE;
Inventors:
Jacob Ström, Stockholm, SE;
Per Wennersten, Årsta, SE;
Assignee:
TELEFONAKTIEBOLAGET LM ERICSSON (PUBL), Stockholm, SE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 19/117 (2014.01); H04N 19/119 (2014.01); H04N 19/169 (2014.01); H04N 19/463 (2014.01); H04N 19/82 (2014.01); H04N 19/85 (2014.01);
U.S. Cl.
CPC ...
H04N 19/117 (2014.11); H04N 19/119 (2014.11); H04N 19/1883 (2014.11); H04N 19/463 (2014.11); H04N 19/82 (2014.11); H04N 19/85 (2014.11);
Abstract
In an image processing device (i.e. encoder or decoder), the number of loop filter stages is lowered by combining bilateral loop filtering (or Hadamard loop filtering) with either sample Adaptive Offset Filtering (SAO) or Adaptive Loop Filtering (ALF). This avoids the implementation problems associated with too many loop filter stages and provides approximately the same compression efficiency gain as having separate loop filter stages.