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Listar por palabra clave "Noise reduction"

Mostrando ítems 1-12 de 12

A Parallel Fuzzy Algorithm for Real-Time Medical Image Enhancement

Arnal, Josep; CHILLARÓN-PÉREZ, MÓNICA; Parcero, Estíbaliz; Súcar, Luis B.; Vidal-Gimeno, Vicente-Emilio (Springer-Verlag, 2020-11)

[EN] Medical images may be corrupted by noise. This noise affects the image quality and can obscure important information required for accurate diagnosis. Effectively apply filtering techniques can facilitate diagnosis or ...
Acoustic noise reduction methods for the launch pad

Herrero Durá, Iván (Universitat Politècnica de València, 2020-06-19)

[ES] Los niveles de presión acústica experimentados por las naves espaciales y las lanzaderas durante las fases iniciales del lanzamiento (ignición de motores y despegue) pueden ser muy significativos para estructuras ...
Broadband reduction of the specular reflections by using sonic crystals: A proof of concept for noise mitigation in aerospace applications

García-Raffi, L. M.; Salmerón-Contreras, L.J.; Herrero-Durá, Iván; Picó Vila, Rubén; Redondo, Javier; Sánchez Morcillo, Víctor José; Staliunas, Kestutis; Adkins, N.J.; Cebrecos, Alejandro; Jimenez, Noe; Romero García, Vicente (Elsevier, 2018-02)

[EN] The broadband reduction of the specular reflections by sonic crystals (SCs) is theoretically and experimentally reported in this work. The analysed system consists of a sound source radiating a SC made of acoustically ...
Design of a locally resonant system to reduce noise inside the payload fairing of a launcher during the lift-off

Chimeno-Manguán, M.; Simon Hidalgo, Francisco; Barriuso Feijoo, P.; Escartí-Guillem, Mara Salut; Nieto, Pedro; Groby, J. P.; Leng, J.; Romero-García, Vicente (Elsevier, 2024-12)

[EN] The high sound pressure exerted on the payload during the launch of space vehicles can jeopardize its structural integrity. Given space and weight restrictions, designing fairing noise protection systems is not easy ...
Diseño e implementación de un método de filtrado de imágenes en color para la reducción de ruido

Gregori Faus, Amàlia (Universitat Politècnica de València, 2016-09-05)

En aquest treball introdu¨ım un nou metode de filtratge d’imatges en color per a la reducci ` o de ´ soroll impulsiu. Aquest filtre esta basat en la coneguda t ` ecnica de l’anomenat ` vector median filter i altres tipus ...
Image Noise Reduction by Means of Bootstrapping-Based Fuzzy Numbers

Ghasemi, Reza; Morillas, Samuel; Nezakati, Ahmad; Rabiei, Mohammadreza (MDPI AG, 2022-10)

[EN] Removing or reducing noise in color images is one of the most important functions of image processing, which is used in many sciences. In many cases, nonlinear methods significantly reduce the noise in the image and ...
Impact of view reduction in CT on radiation dose for patients

Parcero Iglesias, Estíbaliz; Flores, Liubov; Sánchez, Maria Guadalupe; Vidal-Gimeno, Vicente-Emilio; Verdú Martín, Gumersindo Jesús (Elsevier, 2017-08)

[EN] Iterative methods have become a hot topic of research in computed tomography (CT) imaging because of their capacity to resolve the reconstruction problem from a limited number of projections. This allows the reduction ...
Improving Insertion Loss of Sonic Crystal Active Noise Barrier by Reinforcement Learning and Finite Difference Time Domain Simulations

Ramírez-Solana, David; Galiana-Nieves, Jaime; Redondo, Javier; Mangini, Agostino Marcello; Fanti, Maria Pia (Institute of Electrical and Electronics Engineers, 2024-05)

[EN] Sonic crystal noise barriers (SCNB) have emerged as a promising solution for mitigating traffic noise pollution. These barriers utilize periodic structures to selectively reflect acoustic waves at specific target ...
Modelado geométrico, estructural y vibratorio de carriles ferroviarios para su optimización en el campo acústico

Rodríguez Marco, José Enrique (Universitat Politècnica de València, 2020-07-30)

[ES] Uno de los mayores problemas de los vehículos ferroviarios es la emisión acústica que producen debido a la interacción entre la rueda y la vía, acentuado aún más en zonas urbanas. De entre los distintos focos de emisión ...
MRI Rician Noise Reduction Using Recurrent Convolutional Neural Networks

Gurrola-Ramos, Javier; Alarcon, Teresa; Dalmau, Oscar; Manjón Herrera, José Vicente (Institute of Electrical and Electronics Engineers, 2024)

[EN] Magnetic resonance images are usually corrupted by noise during the acquisition process, which can affect the results of subsequent medical image analysis and diagnosis. This paper presents a denoising recurrent ...
Plan de acción para reducir el ruido en una planta industrial: industria metalúrgica de Gipuzkoa

Suso Mendizábal, Ainhoa (Universitat Politècnica de València, 2015-10-20)

Plan de acción para reducir los niveles de ruido existentes en el interior de una planta industrial y comprobar los resultados obtenidos tras su ejecución. Para ello, se han realizado medidas de intensidad para caracterizar ...
Reflection of sound by Sonic Crystals: an application to the aerospace engineering

García-Raffi, L. M.; Salmerón-Contreras, L. J.; Herrero-Durá, Iván; Picó Vila, Rubén; Redondo, Javier; Sánchez Morcillo, Víctor José; Cebrecos, Alejandro; Jimenez, Noe; Romero García, Vicente; Staliunas, K. (Universidade do Porto, 2016-06-15)

[EN] From the acoustical point of view one of the most extreme events is the lift-off of a rocket. In such events, an enormous amount of energy is liberated in the form of acoustic waves that are reflected in the launch ...