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dc.contributor.authorReig Bolano, Ramon
dc.contributor.authorParisi Baradad, Vicenç
dc.contributor.authorMarti Puig, Pere
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Enginyeria Electrònica
dc.identifier.citationReig, R.; Parisi, V.; Marti, P. A contour based approach for bilateral mammogram registration using discrete wavelet analysis. "Advances in soft computing", 2009, vol. 50, p. 347-356.
dc.description.abstractRegistration of mammograms is an essential step to increase the effectiveness of all screening programs planned to early detect breast cancer in asymptomatic women. New techniques based on data fusion of different spatial views, temporal analysis or sequences follow up, and multimodal data analysis, require accurate data registration: forcing spatial alignment of images taken from different views, at different times or from different natures. In this work we will focus on a new technique for automatic bilateral mammograms registration. However the same registration technique is also useful for temporal analysis of the same patient. Bilateral mammogram registration is a challenging task; the mammographic appearance of breast tissue may vary considerably, because of differences in breast compression and positioning, differences in imaging techniques, and changes in the breast itself; moreover, there are no clear landmarks in a mammogram, except for the nipple when it is visible. In our approach we detect the skin-line contour as a first step, we describe the contour as a chain-code, and we make a wavelet based correlation analysis, finally we get the matching of the contours. At the end we apply a global affine transformation.
dc.format.extent10 p.
dc.subjectÀrees temàtiques de la UPC::Enginyeria de la telecomunicació::Processament del senyal::Processament de la imatge i del senyal vídeo
dc.subject.lcshDiagnostic imaging
dc.subject.lcshImage registration
dc.titleA contour based approach for bilateral mammogram registration using discrete wavelet analysis
dc.subject.lemacImatges -- Processament
dc.subject.lemacImatges -- Processament -- Aplicacions
dc.subject.lemacOnes -- Processament de dades
dc.contributor.groupUniversitat Politècnica de Catalunya. AHA - Arquitectures Hardware Avançades
dc.description.peerreviewedPeer Reviewed
dc.rights.accessRestricted access - publisher's policy
dc.description.versionPostprint (published version)
upcommons.citation.authorReig, R.; Parisi, V.; Marti, P.
upcommons.citation.publicationNameAdvances in soft computing

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