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:
Feb. 24, 2026

Filed:

Feb. 13, 2024
Applicant:

Fraunhofer-gesellschaft Zur Förderung Der Angewandten Forschung E.v., Munich, DE;

Inventors:

Christian Helmrich, Berlin, DE;

Heiko Schwarz, Berlin, DE;

Detlev Marpe, Berlin, DE;

Thomas Wiegand, Berlin, DE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 19/176 (2014.01); H04N 19/107 (2014.01); H04N 19/132 (2014.01); H04N 19/136 (2014.01); H04N 19/186 (2014.01); H04N 19/503 (2014.01); H04N 19/593 (2014.01);
U.S. Cl.
CPC ...
H04N 19/176 (2014.11); H04N 19/107 (2014.11); H04N 19/132 (2014.11); H04N 19/136 (2014.11); H04N 19/186 (2014.11); H04N 19/503 (2014.11); H04N 19/593 (2014.11);
Abstract

A decoder for block-based decoding of picture data of a picture is configured to decode a current block of the picture by determining first and second sets of luma in a neighborhood of the current block, the first set of luma samples having smaller luma values than the second set of luma samples, fitting a straight-line having a linear function through first and second pairs of luma-chroma samples, wherein the first and second pairs of luma-chroma samples are determined based on the first and second sets of luma samples, respectively, and on first and second corresponding chroma samples, respectively, in said neighborhood of the current block, and predicting chroma samples of the current block using luma samples of the current block and said linear function. The present invention further concerns a respective encoder and corresponding methods for encoding and decoding.


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