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Listar por palabra clave "QR decomposition"

Mostrando ítems 1-5 de 5

Application of the singular value and pivoted QR decompositions to reduce experimental efforts in compressor characterization

Tiseira, Andrés-Omar; Pla Moreno, Benjamín; Bares-Moreno, Pau; Aramburu-Orihuela, Alexandra (Elsevier, 2022-11)

[EN] Compressor characterization, either by running experiments in a turbocharger test rig or by detailed CFD modelling, can be expensive and time-consuming. In this work, a novel method is proposed which can be used to ...
Development of a New 3D Reconstruction Algorithm for Computed Tomography (CT)

Iborra Carreres, Amadeo (Universitat Politècnica de València, 2016-01-07)

[EN] Model-based computed tomography (CT) image reconstruction is dominated by iterative algorithms. Although long reconstruction times remain as a barrier in practical applications, techniques to speed up its convergence ...
Effect of noise in CT image reconstruction using QR- Decomposition algorithm

Iborra, A.; Rodríguez-Álvarez, M. J.; Soriano, A.; Sánchez, F.; Bellido, P.; Conde, P.; Crespo, E.; González Martínez, Antonio Javier; Martos, F.; Moliner, L.; Rigla, J. P.; Seimetz, Michael; Vidal San Sebastian, Luis Fernando; Benlloch Baviera, Jose María (IEEE, 2013-11-02)

[EN] The QR-Decomposition algorithm for CT 3D image reconstruction uses a linear system of equations to model the CT system response. Linear systems have a condition number that can be used to estimate the image noise. ...
Implementación eficiente de núcleos computacionales básicos de álgebra lineal numérica en el procesador Wafer-Scale Engine

Sandoval Moreno, Abdel (Universitat Politècnica de València, 2024-11-03)

[ES] La cantidad de datos que se deben procesar ha ido en aumento año tras año. La opción más destacada para enfrentar este problema ha sido la computación paralela. En este contexto ha surgido recientemente la arquitectura ...
Noise Analysis in Computed Tomography (CT) Image Reconstruction using QR-Decomposition Algorithm

Iborra Carreres, Amadeo; Rodríguez Álvarez, María José; Soriano Asensi, Antonio; Sanchez, F.; Bellido, P.; Conde Castellanos, Pablo Eloy; Crespo Navarro, Efren; González Martínez, Antonio Javier; Moliner Martínez, Laura; Rigla Pérez, Juan Pablo; Seimetz, Michael; Vidal San Sebastián, Luis Fernando; Benlloch Baviera, Jose María (Institute of Electrical and Electronics Engineers (IEEE), 2015-06)

In this paper, the noise of 3D computed tomography (CT) image reconstruction using QR-Decomposition is analyzed. There are several types of image noise that can interfere with the interpretation of an image. Here, the ...