Results 81 to 90 of about 2,334 (224)

Dynamic contrast enhanced‐magnetic resonance fingerprinting (DCE‐MRF): A new quantitative MRI method to reliably assess tumor vascular perfusion

Magnetic Resonance in Medicine, Volume 94, Issue 6, Page 2578-2592, December 2025.
Abstract Purpose The clinical utility of conventional DCE‐MRI methods is limited by the use of conventional qualitative dynamic T1‐weighted images, resulting in poor reproducibility. This study presents the initial implementation of a new DCE‐magnetic resonance fingerprinting (DCE‐MRF) methodology to provide reproducible, quantitative assessments of ...
Christina J. MacAskill, Yuran Zhu, Guanhua Wang, Bernadette O. Erokwu, Chetan B. Dhakan, Andrew Dupuis, Barbara J. Schiemann, Michael Kavran, Chunying Wu, William P. Schiemann, Mark A. Griswold, Xin Yu, Mark D. Pagel, Chris A. Flask   +13 more
wiley   +1 more source

Sparsity Enforcing with Toeplitz Matrix Reconstruction Method for Mmwave Ul Channel Estimation with One-Bit Adcs

, 2022
Majdoddin Esfandiari, Sergiy A. Vorobyov, Robert W. Heath   +2 more
openalex   +2 more sources

Fast numerical algorithms for solving opposite-bordered tridiagonal Toeplitz linear systems and their applications

Results in Applied Mathematics
This paper presents two fast numerical algorithms for solving opposite-bordered tridiagonal Toeplitz linear systems. Both algorithms are designed to solve a system of n equations in linear time.
Hcini Fahd
doaj   +1 more source

Two-Dimensional DOA Estimation of MIMO Radar Coherent Source Based on Toeplitz Matrix Set Reconstruction [PDF]

, 2021
Fei Zhang, Aisuo Jin, Yin Hu
openalex   +1 more source

Fast Toeplitz eigenvalue computations, joining interpolation-extrapolation matrix-less algorithms and simple-loop conjectures: the preconditioned setting [PDF]

, 2022
Manuel Bogoya, Stefano Serra-Cappizano, Paris Vassalos   +2 more
openalex   +1 more source

CHARACTERIZATIONS OF MATRIX-VALUED ASYMMETRIC TRUNCATED TOEPLITZ OPERATORS

Rocky Mountain Journal of Mathematics
We characterize matrix-valued asymmetric truncated Toeplitz operators (which are compressions of multiplication operators acting between two possibly different model spaces) by using compressed shifts, modified compressed shifts and shift invariance.
Khan, Rewayat, Ameur, Yagoub, Khan, Jamroz   +2 more
openaire   +3 more sources

Digital Signal Processing (DSP)-Oriented Reduced-Complexity Algorithms for Calculating Matrix–Vector Products with Small-Order Toeplitz Matrices

Signals
Toeplitz matrix–vector products are used in many digital signal processing applications. Direct methods for calculating such products require N2 multiplications and N(N−1) additions, where N denotes the order of the Toeplitz matrix.
Janusz P. Papliński, Aleksandr Cariow, Paweł Strzelec, Marta Makowska   +3 more
doaj   +1 more source

On Toeplitz and Kronecker structured covariance matrix estimation

2010 IEEE Sensor Array and Multichannel Signal Processing Workshop, 2010
A number of signal processing applications require the estimation of covariance matrices. Sometimes, the particular scenario or system imparts a certain theoretical structure on the matrices that are to be estimated. Using this knowledge allows the design of algorithms exploiting such structure, resulting in more robust and accurate estimators ...
Wirfält, Petter, Jansson, Magnus
openaire   +3 more sources

Recurrence form for determinant of a heptadiagonal symmetric Toeplitz matrix [PDF]

, 2014
Jolanta Borowska, Lena Łacińska
openalex   +1 more source

Speeding up Curve25519 using Toeplitz Matrix-vector Multiplication

Proceedings of the Fifth Workshop on Cryptography and Security in Computing Systems, 2018
This paper proposes a new multiplication algorithm over F2255_19 where the de-facto standard Curve25519 [2] algorithm is based on. Our algorithm for the underlying finite field multiplication exploits the Toeplitz matrix-vector multiplication and achieves salient results.
Taskin, Halil Kemal, Cenk, Murat
openaire   +2 more sources