Luiz Otávio Murta Júnior

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Radial Basis Function Networks (RBFNs) have been successfully employed in several function approximation and pattern recognition problems. In RBFNs, radial basis functions are used to compute the activation of artificial neu-rons. The use of different radial basis functions in RBFN has been reported in the literature. Here, the use of the q-Gaussian(More)
Medical image registration plays an important role in determining topographic and morphological changes for functional diagnostic and therapeutic purposes. Manual alignment and semi-automated software still have been used; however they are subjective and make specialists spend precious time. Fully automated methods are faster and user-independent, but the(More)
Chagas disease is of major clinical relevance, with high incidence.The relation between the myocardial tissue damage, myocardial perfusion and defects in the au-tonomic innervations is poorly understood. This work proposes the development and application of image analysis methods capable of providing an integrated visualiza-tion and analysis of tissue(More)
Cardiologic magnetic resonance imaging (MRI) has recently been improved by faster acquisition and higher resolution hardware. Commercially available MRI equipment is able to capture contrast agents with the needed time and space definition to map myocardial viability. MRI my-ocardial imaging has an emerging role in cardiology studies , and it has(More)
The "stationarity time" (ST) of neuronal spontaneous activity signals of rat embryonic cortical cells, measured by means of a planar Multielectrode Array (MEA), was estimated based on the "Detrended Fluctuation Analysis" (DFA). The ST is defined as the mean time interval during which the signal under analysis keeps its statistical characteristics constant.(More)
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