Please use this identifier to cite or link to this item: http://hdl.handle.net/1822/15670

TitleBreast skin-line detection using dynamic programming
Author(s)Silva, C. A.
Lima, C. G.
Correia, J. H.
KeywordsMammography
Breast skin-line
Dynamic programming
Issue dateSep-2011
PublisherIEEE
JournalConference proceedings: ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society
Abstract(s)In this paper, we present a novel method to extract the breast skin-line based on dynamic programming. Skin-line extraction is an important preprocessing step in CAD systems; however, it is a challenging problem due to the presence of noise, underexposed regions, which results in a low contrast area near the skin-air interface, and artifacts such as labels. Our proposal utilizes the stroma edge to constrain searching for the border. In order to cope with noise, we consider several candidate points for the border interface which are obtained by the Laplace operator applied in pre-defined directions in the mammogram. The breast contour is obtained from the candidate points using a dynamic programming algorithm. This utilizes a criterion of optimality to obtain the optimum contour by minimization of a cost function. The method was evaluated using 82 mammograms whose contour were manually extracted by a radiologist from the mini- MIAS database. The Polyline Distance Measure was evaluated for each contour selected with the proposed method, obtaining a mean error of 2.05 pixels and a standard deviation of 0.80.
TypeConference paper
URIhttp://hdl.handle.net/1822/15670
ISBN9781424441211
DOI10.1109/IEMBS.2011.6091916
ISSN1557-170X
Publisher versionhttp://dx.doi.org/10.1109/IEMBS.2011.6091916
Peer-Reviewedyes
AccessOpen access
Appears in Collections:CAlg - Artigos em livros de atas/Papers in proceedings

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