Processamento e Análise de Imagens Médicas

Ana Maria Marques da Silva, Ana Cláudia Patrocínio, Homero Schiabel

Resumo


Este artigo tem por objetivo apresentar uma abordagem conceitual sobre os principais aspectos envolvidos no processamento e na análise digital de imagens médicas, trazendo exemplos da aplicação na prática clínica e da pesquisa em imagens médicas. Para explorar a temática, o artigo está dividido em seções. A primeira seção apresenta os aspectos relacionados às diferenças entre a imagem adquirida no equipamento e a visualizada nos monitores, levantando alguns elementos relacionados à qualidade da aquisição. A seguir são descritas algumas técnicas de pré-processamento que permitem melhorar e destacar aspectos relevantes das imagens. A próxima seção apresenta os principais métodos de segmentação de objetos de interesse nas imagens. A seguir, duas seções descrevem como representar e descrever de forma quantitativa as características relevantes das imagens, para que elas possam ser analisadas computacionalmente, e os aspectos relativos à análise e ao reconhecimento de padrões em imagens. Finalmente, são apresentados alguns exemplos de esquemas de auxílio computadorizado ao diagnóstico.


Palavras-chave


imagens médicas; processamento de imagens; segmentação; auxílio computadorizado ao diagnóstico.

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Referências


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DOI: http://dx.doi.org/10.29384/rbfm.2019.v13.n1.p34-48

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