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Noise reduction in biomedical speech signal processing based on time and frequency Kalman filtering combined with spectral subtraction
(PERGAMON-ELSEVIER SCIENCE LTD, 2008)
The goal of this paper is to study and propose a new technique for noise reduction used during the reconstruction of speech signals, particularly for biomedical applications. The proposed method is based on Kalman filtering ...
Image reconstruction from projections of digital breast tomosynthesis using deep learning
(2021-01-01)
The Filtered Backprojection (FBP) algorithm for Computed Tomography (CT) reconstruction can be mapped entire in an Artificial Neural Network (ANN), with the backprojection (BP) operation simulated analytically in a layer ...
Ondaletas e modelagem estatística aplicados na redução de ruído em sinaisWavelets and statistical modeling applied in signal noise reductions
(Universidade Federal de UberlândiaBrasilPrograma de Pós-graduação em Engenharia Elétrica, 2018)
Análise dos níveis médios de ruído no entorno de hospitais da cidade de Curitiba
(Universidade Tecnológica Federal do ParanáCuritibaBrasilCurso de Especialização em Engenharia de Segurança do TrabalhoUTFPR, 2019-06-28)
Urban traffic noise (engine sound, horns, sirens, etc.), because it is a source of irritation that can affect the hospital environment, depending on its sound pressure level, contributes to the reduction of the welfare of ...
Moisture content and its influence on the roughness and noise emission during wood machining
(2015)
Numerous factors influencing the surface quality of wood after machining, among them we highlight the machining parameters and the properties of the wood. In the analysis of the influence of these factors on machining and ...
Utilização de filtros adaptativos em sistemas de redução ativa de ruído para ambientes amplos
(Universidade Tecnológica Federal do ParanáCuritibaBrasilPrograma de Pós-Graduação em Engenharia Elétrica e Informática IndustrialUTFPR, 2019-09-27)
Industrial noise is a worrysome occupational health and safety subject-matter for employees. Prolonged exposure to noise may generate hearing loss or even heart or psychological problems. This study aims to evaluate the ...
Avaliação do ruído de tráfego veicular em dois pontos críticos de Campo Mourão – PR
(Universidade Tecnológica Federal do ParanáCampo MouraoBrasilDepartamento Acadêmico de AmbientalEngenharia AmbientalUTFPR, 2021-11-30)
Traffic noise is the main cause of environmental noise and environmental noise is the main cause of noise pollution. And automobiles, as they form the largest composition within urban traffic, are the main cause of pollution. ...
Active sound quality control of engine induced cavity noise
(ACADEMIC PRESS LTD ELSEVIER SCIENCE LTD, 2009)
Active control solutions appear to be a feasible approach to cope with the steadily increasing requirements for noise reduction in the transportation industry. Active controllers tend to be designed with a target on the ...