Breast Masses Classification using a Sparse Representation

Fabián Narváez, Andrea Rueda, Eduardo Romero

Abstract

Breast mass detection and classification in mammograms is considered a very difficult task in medical image analysis. In this paper, we present a novel approach for classification of masses in digital mammograms according with their severity (benign or malign). Unlike other approaches, we do not segment masses but instead, we attempt to describe entire regions of interest (RoIs) based on a sparse representation. A set of patches selected by a radiologist in a RoI are characterized by their projection onto learned dictionaries, constructed previously from classified regions. Finally, the region class was identified using a decision rule algorithm. The strategy was assessed in a set of 80 masses with different shapes extracted from the DDSM database. The classification was compared with a ground truth already provided in the data base, showing an average accuracy rate of 70%.

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Paper Citation


in Harvard Style

Narváez F., Rueda A. and Romero E. (2011). Breast Masses Classification using a Sparse Representation . In Proceedings of the 2nd International Workshop on Medical Image Analysis and Description for Diagnosis Systems - Volume 1: MIAD, (BIOSTEC 2011) ISBN 978-989-8425-38-6, pages 26-33. DOI: 10.5220/0003304300260033


in Bibtex Style

@conference{miad11,
author={Fabián Narváez and Andrea Rueda and Eduardo Romero},
title={Breast Masses Classification using a Sparse Representation},
booktitle={Proceedings of the 2nd International Workshop on Medical Image Analysis and Description for Diagnosis Systems - Volume 1: MIAD, (BIOSTEC 2011)},
year={2011},
pages={26-33},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0003304300260033},
isbn={978-989-8425-38-6},
}


in EndNote Style

TY - CONF
JO - Proceedings of the 2nd International Workshop on Medical Image Analysis and Description for Diagnosis Systems - Volume 1: MIAD, (BIOSTEC 2011)
TI - Breast Masses Classification using a Sparse Representation
SN - 978-989-8425-38-6
AU - Narváez F.
AU - Rueda A.
AU - Romero E.
PY - 2011
SP - 26
EP - 33
DO - 10.5220/0003304300260033