Schnelle Ldl-Zersetzung zur Matrixinversion

Details

Veröffentlichungs-Nr.

EP4808122

Anmeldetag

13. März 2025

Veröffentlichung

16. September 2026

Rechtsraum

EP

Abstract

A method comprising: obtaining a block of a picture; determining parameters of a compression tool, the determining comprising: obtaining (710) a first matrix and a one-dimensional array of values used in a first matrixial operation representing a linear system to solve to obtain the parameters; applying (711) a fast LDL decomposition to the first matrix, the fast LDL decomposition allowing obtaining a second matrix (L), the second matrix being lower triangular with diagonal entries equal to one, a plurality of scale and shift elements representative of a third matrix (D), the third matrix being diagonal and a fourth matrix (LT), the fourth matrix being a transpose of the second matrix; and, solving (712) the linear system by sequentially solving a second, a third and a fourth matrixial operations respectively based on the second matrix and the one-dimensional array of values, the plurality of scale and shift elements and the fourth matrix; and applying the compression tool to predict the block using the parameters.

Anmelder

Firma

InterDigital CE Patent Holdings, SAS

Land

🇫🇷 Frankreich