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		<isbn>978-85-7669-270-6</isbn>
		<citationkey>MascarenhasFuruPort:1992:NoMéRe</citationkey>
		<author>Mascarenhas, Nelson Delfino d'Ávila,</author>
		<author>Furuie, Sérgio Shiguemi,</author>
		<author>Portal, Angel L. S.,</author>
		<affiliation>Instituto Nacional de Pesquisas Espaciais (INPE)</affiliation>
		<affiliation>Divisão de Informática Médica do Instituto do Coração/HCFMUSP</affiliation>
		<affiliation>Departamento de Engenharia de Eletricidade da Escola Politécnica da Universidade de São Paulo (USP)</affiliation>
		<title>Novos métodos de reconstrução de imagens tomográficas com ruído Poisson por pré-processamento das projeções</title>
		<conferencename>Simpósio Brasileiro de Computação Gráfica e Processamento de Imagens, 5 (SIBGRAPI)</conferencename>
		<year>1992</year>
		<editor>Câmara, Gilberto,</editor>
		<editor>Gomes, Jonas de Miranda,</editor>
		<volume>1</volume>
		<booktitle>Anais</booktitle>
		<date>10 - 12 nov. 1992</date>
		<publisheraddress>Porto Alegre</publisheraddress>
		<publisher>Sociedade Brasileira de Computação</publisher>
		<conferencelocation>Águas de Lindóia</conferencelocation>
		<keywords>processamento de imagens, imagens tomográficas, métodos de reconstrução de imagens.</keywords>
		<abstract>In a previous work [1,2], Furuie and Mascarenhas proposed a number of reconstruction techniques for emission computed tomography of the PET type (Positron Emission Tomography), based on filtering the Poisson noise of the one dimensional projections, followed by the use of conventional fast algorithms, like convolution-backprojection. The purpose of this work is to refine the one dimensional projections estimation techniques previously proposed, by taking into account the correlation between points in the non-noisy one dimensional projections, both on the filtering and to the parameter estimation procedures.</abstract>
		<pages>55-61</pages>
		<language>pt</language>
		<type>Processamento de Imagens</type>
		<tertiarytype>Artigo</tertiarytype>
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		<targetfile>7 Novos metodos de reconstrucao de imagens tomograficas.pdf</targetfile>
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