As imagens médicas, nomeadamente as imagens de Tomografia Computorizada são indispensáveis no diagnóstico e tratamento de doenças devido ao elevado grau de detalhe anatómico. A segmentação é uma das principais técnicas utilizada para a análise de imagens e tem como objectivo a separação das regiões ou objectos nela representados mediante algumas propriedades de descontinuidade e similaridade. Esta técnica aplic...
In this paper we propose an hybrid method for the image segmentation which combines the edge-based, region-based and the morphological techniques in conjunction through the spectral based clustering approach. An initial partitioning of the image into atomic regions is set by applying a watershed method to the image gradient magnitude. This initial partition is the input to a computationally efficient region seg...
Brain segmentation in head computed tomography scans is essential for the development of computer-aided diagnostic methods for identifying the brain diseases. In this paper we present a hybrid framework to brain segmentation which joints region-based information based on watershed transform with clustering techniques. A pre-processing step is used to reduce the spatial resolution without losing important image ...
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