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		<doi>10.1109/SIBGRA.2002.1167120</doi>
		<citationkey>StraussJimGirSilOli:2002:SeSuRe</citationkey>
		<title>A semi-automatic surface reconstruction framework based on T-Surfaces and isosurface extraction methods</title>
		<year>2002</year>
		<numberoffiles>1</numberoffiles>
		<size>661 KiB</size>
		<author>Strauss, Edilberto,</author>
		<author>Jiménez, Walter,</author>
		<author>Giraldi, Gilson A.,</author>
		<author>Silva, Rodrigo,</author>
		<author>Oliveira, Antonio A. F.,</author>
		<editor>Gonçalves, Luiz Marcos Garcia,</editor>
		<editor>Musse, Soraia Raupp,</editor>
		<editor>Comba, João Luiz Dihl,</editor>
		<editor>Giraldi, Gilson,</editor>
		<editor>Dreux, Marcelo,</editor>
		<conferencename>Brazilian Symposium on Computer Graphics and Image Processing, 15 (SIBGRAPI)</conferencename>
		<conferencelocation>Fortaleza, CE, Brazil</conferencelocation>
		<date>10-10 Oct. 2002</date>
		<publisher>IEEE Computer Society</publisher>
		<publisheraddress>Los Alamitos</publisheraddress>
		<booktitle>Proceedings</booktitle>
		<tertiarytype>Full Paper</tertiarytype>
		<organization>SBC - Brazilian Computer Society</organization>
		<transferableflag>1</transferableflag>
		<versiontype>finaldraft</versiontype>
		<abstract>In this paper we present a new approach which integrates the T-Surfaces model and isosurface genera-tion methods in a general framework for surface reconstruction in 3D medical images. T-Surfaces is a deformable model based on a triangulation of the image domain, a discrete surface model and an image threshold. Two types of isosurface generation methods are considered: the continuation ones and the marching ones. The former is useful during the reparameterization of T-Surfaces while the later is suitable to initialize the model closer the boundary. Specifically, in a first stage, the T-Surfaces grid and the threshold are used to define a coarser image resolution. This field is thresholded to get a 0-1 function which is processed by a marching method to generate polygonal surfaces whose interior may contain the desired objects. If a polygonal surface involves more than one object, then the resolution is increased in that region and the marching applied again. Next, we apply T-Surfaces to improved the result. If the obtained topology remains incorrect, we enable the user to modify the topology by an interac-tive method based on the T-Surfaces framework. Finally, we demonstrate the utility of diffusion methods for our approach.</abstract>
		<language>en</language>
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		<notes>The conference was held in Fortaleza, CE, Brazil, from October 7 to 10.</notes>
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		<url>http://sibgrapi.sid.inpe.br/rep-/sid.inpe.br/banon/2002/10.23.12.23</url>
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