A region-based active contour method for extraction of breast skin-line in mammograms
- 1 January 2010
- conference paper
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE) in 2010 IEEE International Symposium on Biomedical Imaging: From Nano to Macro
Abstract
In this work, we present a novel region-based active contour technique to extract the breast boundary in mammograms. Skin-line extraction in mammograms is non-trivial due to the presence of noise, intensity inhomogeneities, and scanning artifacts. Also, weak contrast near the skin-line boundary, especially in the case of low-density breasts, poses a lot of difficulty in its extraction. Here, we represent the breast boundary by a smooth, parametric curve. The region based data term of the active contour energy is based on the assumption that in a small neighborhood around the skin boundary, the intensity is piece-wise constant. Further, to achieve a good initial guess, we make use of the assumption that at a large scale, the breast image is binary with a fuzzy boundary. A PDE based energy is employed to get the fuzzy membership function. The smoothness term of the above energy allows us to handle noise/ scanning artifacts in mammograms, and allows easy extraction of a single contour, which is then input to the active contour energy. Our experiments on the MIAS database gave promising results as validated by an experienced radiologist.Keywords
This publication has 12 references indexed in Scilit:
- Localizing Region-Based Active ContoursIEEE Transactions on Image Processing, 2008
- A PDE Based Method for Fuzzy Classification of Medical ImagesPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2006
- Using Non-Parametric Kernel to Segment and Smooth Images SimultaneouslyPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2006
- Dynamic segmentation of breast tissue in digitized mammogramsPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2005
- Identification of the breast boundary in mammograms using active contour models.Medical & Biological Engineering & Computing, 2004
- Active contours without edgesIEEE Transactions on Image Processing, 2001
- Thickness-equalization processing for mammographic images.Radiology, 1997
- A simple method for automatically locating the nipple on mammogramsIEEE Transactions on Medical Imaging, 1997
- AUTOMATED DETECTION OF MAMMOGRAPHIC ASYMMETRY USING ANATOMICAL FEATURESInternational Journal of Pattern Recognition and Artificial Intelligence, 1993
- Automated detection of breast tumors using the asymmetry approachComputers and Biomedical Research, 1991