Biomedical Engineering Interest Group

together with the Institute of Molecular Medicine.

News

Joint ISR/IMM seminar in Biomedical Engineering

Edíficio Egas Moniz, Hospital de Santa Maria Dia ? de Abril de 2008 às ?? horas

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First Talk: José Rino (IMM) (joserino@gmail.com)

Title:

Abstract:

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Second Talk: João Sanches (ISR) (jmrs@isr.ist.utl.pt)

Title: Sequence Denoising of Fluorescence Confocal Microscopy Images with Anisotropic Filtering.

Abstract: Fluorescence Confocal Microscopy (FCM) is one of the most important tools in biomedicine research. In fact, it makes possible to accurately study the dynamic processes occurring inside the cell and its nucleus by following the motion of fluorescent molecules along the time. Due to the small amount of acquired radiation and the huge optical and electronics amplification, the FCM images are usually corrupted by a severe type of Poisson noise. This noise may be even more damaging when very low intensity incident radiation is used to avoid phototoxicity. In this talk a Bayesian algorithm is described to remove the Poisson multiplicative noise corrupting the FCM images. The observations are organized in a 3D tensor where each plane is one of the images acquired along the time of a cell using the Fluorescence Loss In Photobleaching (FLIP) technique. The method removes simultaneously the noise by considering different spatial and temporal correlations. This is done by using an anisotropic 3D filter that may be separately tuned in space and time dimensions.

People

PhD

• João Sanches (ISR) (jmrs@ist.utl.pt)
• José Rino (IMM) (joserino@gmail.com)
• José Alberto Santos Victor (ISR) (jasv@isr.ist.utl.pt)
• Maria do Carmo Fonseca (IMM) (carmo.fonseca@fm.ul.pt)
• Teresa Paiva (IMM) (teresapaiva@netcabo.pt)
• Patrícia Figueiredo (IST) (pfigueiredo@fisica.ist.utl.pt)
• Martin H. Lauterbach (IMM) (mlauterbach@fm.ul.pt)
• Silva Carvalho (IMM) (luisfssc@hotmail.com)
• Isabel Rocha (IMM) (IMM)
• Margarida Silveira (ISR) (msilveira@isr.ist.utl.pt)
• Jacinto Nascimento (ISR) (jan@isr.ist.utl.pt)
• Rodrigo Ventura (ISR) (yoda@isr.ist.utl.pt)
• Jorge Salvador Marques (ISR) (jsm@isr.ist.utl.pt)
• João Pedro Gomes (ISR) (jpg@isr.ist.utl.pt)

PhD students

• José Seabra (ISR) (ze_seabra@yahoo.com)
• Isabel Rodrigues (ISR / ISEL) (irodrigues@isr.ist.utl.pt)
• Ricardo Ribeiro (ISR / ESTSL) (ricardo.ribeiro@estesl.ipl.pt)
• João Casteleiro (ISR) (casteleiroalves@gmail.com)
• Nuno Nobre (ISR) (nobre7@gmail.com)
• Mariana Almeida (IT) (mariana.almeida@lx.it.pt)

MSc students

• Rita Xavier (IMM) (ritarxavier@gmail.com)
• Joana Coelho (ISR) (jrosadocoelho@gmail.com)
• José Santos (ISR) (jlemasantos@gmail.com)
• Isabela Silva (ISR) (isabela.silva@gmail.com)
• Bruno Pereira (IST) (brunomspereira@sapo.pt)
• Pedro Pires (ISR) (Snuffit@Gmail.com)
• André Baptista (IST) (andrefsmbaptista@gmail.com)
• João Raminhos (IST) (joao.pedro.raminhos@gmail.com)
• Hugo Pinto (ISR) (pinto.h@gmail.com)
• Indira Andrade (IST) (indira@netcabo.pt)
• Diogo Loureiro (IST) (diogo-f-loureiro@telecom.pt)