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Reference TypeConference Paper (Conference Proceedings)
Last Update2002: administrator
Metadata Last Update2020: administrator
Citation KeyGiraldiStraOliv:2000:BoExAp
TitleA boundary extraction approach based on multi-resolution methods and the T-Snakes framework
Access Date2021, Jan. 19
Number of Files1
Size855 KiB
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Author1 Giraldi, Gilson A.
2 Strauss, Edilberto
3 Oliveira, Antonio A. F.
EditorCarvalho, Paulo Cezar Pinto
Walter, Marcelo
Conference NameBrazilian Symposium on Computer Graphics and Image Processing, 13 (SIBGRAPI)
Conference LocationGramado, RS, Brazil
PublisherIEEE Computer Society
Publisher CityLos Alamitos
Tertiary TypeFull Paper
OrganizationSBC - Brazilian Computer Society
History2008-07-17 14:10:49 :: administrator -> banon ::
2008-08-26 15:23:01 :: banon -> administrator ::
2009-08-13 20:36:53 :: administrator -> banon ::
2010-08-28 20:00:09 :: banon -> administrator ::
2020-02-19 02:58:51 :: administrator -> :: 2000
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Keywordsedge detection, boundary extraction approach, multi-resolution methods, T-Snakes framework, image segmentation, image domain triangulation, image sampling, low image resolution, image thresholding, polygonal curves, 2D medical imaging, experimental results.
AbstractWe present a new approach which integrates the T-Snakes model and a multi-resolution method in a unified framework for segmentation and boundary extraction. In a first stage, a local scale property of the objects is used to define a triangulation of the image domain and a sampling (coarsest resolution) of the image field. The low resolution image is thresholded to get a 0-1 field which is processed by a simple continuation method to generate polygonal curves whose interior contain the desired objects. If the polygonal curve involves more than one object, then the resolution is increased in that region and the method will be applied again. This stage gives a rough approximation of the desired boundaries which will be improved by the T-Snakes to get the final result. We demonstrate the method for 2D medical imaging in the experimental results and indicate how it can be extended to 3D in future work.
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NotesThe conference was held in Gramado, RS, Brazil, from October 17 to 20.
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