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:
Feb. 10, 2026
Filed:
Apr. 07, 2022
Telefonaktiebolaget Lm Ericsson (Publ), Stockholm, SE;
Telefonaktiebolaget LM Ericsson (publ), Stockholm, SE;
Abstract
There is provided a method for encoding a picture. The method comprises, for each picture on either side of the current picture with a distance of one or two away from the current picture, computing a first error value, E, wherein the first error value, E, is computed for each block of a set of blocks of a first block size of the current picture and is based on the respective block of the current picture and a corresponding block in the picture. The method comprises, for each picture on either side of the current picture with a distance of one or two away from the current picture, aggregating the first error value, E, over a block of a second block size for each block of the set of blocks of the first block size contained in the block of the second block size to generate a second error value, E', corresponding to the picture. The method further comprises computing an importance score for the block of the second block size in the current picture based at least in part on the second error value, E′, corresponding to one or more of the pictures on either side of the current picture with a distance of one or two away from the current picture. The method comprises computing a change in quantization parameter, QP, value for the block of the second block size in the current picture based on the importance score. The method comprises signaling the change in QP value to an encoder.