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:
Dec. 23, 2025

Filed:

Feb. 15, 2024
Applicant:

Microsoft Technology Licensing, Llc, Redmond, WA (US);

Inventor:

Gary J. Sullivan, Bellevue, WA (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 19/124 (2014.01); H04N 19/117 (2014.01); H04N 19/126 (2014.01); H04N 19/15 (2014.01); H04N 19/172 (2014.01); H04N 19/174 (2014.01); H04N 19/186 (2014.01); H04N 19/70 (2014.01); H04N 19/86 (2014.01); H04N 19/176 (2014.01); H04N 19/184 (2014.01);
U.S. Cl.
CPC ...
H04N 19/124 (2014.11); H04N 19/117 (2014.11); H04N 19/126 (2014.11); H04N 19/15 (2014.11); H04N 19/172 (2014.11); H04N 19/174 (2014.11); H04N 19/186 (2014.11); H04N 19/70 (2014.11); H04N 19/86 (2014.11); H04N 19/176 (2014.11); H04N 19/184 (2014.11);
Abstract

Innovations in use of chroma quantization parameter ('QP') offsets when determining a control parameter for deblock filtering. For example, as part of encoding, an encoder sets a picture-level chroma QP offset and slice-level chroma QP offset for encoding of a slice of a picture. The encoder also performs deblock filtering of at least part of the slice, where derivation of a control parameter considers only the picture-level chroma QP offset. The encoder outputs at least part of a bitstream including the encoded content. As part of decoding, a corresponding decoder sets a picture-level chroma QP offset and a slice-level chroma QP offset for decoding of a slice of a picture, but derivation of a control parameter for deblock filtering considers only the picture-level chroma QP offset.


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