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Técnicas de Subtracção de SPECT e seu co-registo com IRM: Análise e optimização...
Ricardo Filipe Oliveira; José Maria Fernandes; João E. P. Ramalheira; João Paulo Silva CunhaThe correlation of data from several proveniences in Epilepsy has registered some progresses in the detection of the Epileptogenic focus/zone. The subtraction of SPECT co-registered to MRI (SISCOM) has been assuming as a valiant technique, localising the lesion area for surgical recession through a good location of the Epiletogenic zone.In this paper we present the automation and improvement performed to t...
Biometric authentication using electroencephalograms: a practical study using v...
André Zúquete; Bruno Quintela; João Paulo Silva CunhaThis paper studies the suitability of brain activity, namely electroencephalogram signals, as raw material for conducting biometric authentication of individuals. Brain responses were extracted in particular scenarios, namely with visual stimulation leading to biological brain responses known as visual evoked potentials. In our study, we evaluated a novel method, using only 8 occipital electrodes and the energy...
Capview: computer-aided diagnosis for endoscopic capsule
João Paulo Silva Cunha; Miguel Coimbra; José SoaresEndoscopic capsule is a rather recent technique that is raising new challenges to biomedical engineers. On one hand, it results on a long clinical video (up to 8h) that needs to be reviewed to reach a diagnosis. On the other hand, the location of events in the gastrointestinal tract and its image characteristics, such as luminance, artefact presence, etc. makes its analysis complex and difficult its interpretat...
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