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:
Sep. 09, 2025
Filed:
Dec. 22, 2021
Fraunhofer-gesellschaft Zur Förderung Der Angewandten Forschung E.v., Munich, DE;
Jonathan Pfaff, Berlin, DE;
Tobias Hinz, Berlin, DE;
Philipp Helle, Berlin, DE;
Philipp Merkle, Berlin, DE;
Björn Stallenberger, Berlin, DE;
Michael Schäfer, Berlin, DE;
Benjamin Bross, Berlin, DE;
Martin Winken, Berlin, DE;
Mischa Siekmann, Berlin, DE;
Heiko Schwarz, Berlin, DE;
Detlev Marpe, Berlin, DE;
Thomas Wiegand, Berlin, DE;
Abstract
An apparatus configured to select a predetermined intra prediction mode out of a plurality of intra-prediction modes which includes a first set of intra-prediction modes and a second set of matrix-based intra-prediction modes. The apparatus is configured to select a subset of one or more secondary transforms dependent on the predetermined intra prediction mode so that the subset is nonempty in case of the predetermined intra prediction mode being contained in the first set of intra-prediction modes or in the second set of matrix-based intra-prediction modes. The apparatus is configured to derive a transformed version of a prediction residual for a predetermined block, which is related to a spatial domain version of the prediction residual of the predetermined block via a transform defined by a concatenation of a primary transform and a predetermined secondary transform out of the subset of secondary transforms.