A breast tissue type detection system is designed, and verified on a
publicly available mammogram dataset constructed by the Mammographic Image
Analysis Society (MIAS) in this paper. This database consists of three
fundamental breast tissue types that are fatty, fatty-glandular, and
dense-glandular. At the pre-processing stage of the designed detection system,
median filtering and morphological operations are applied for noise reduction
and artifact suppression, respectively; then a pectoral muscle removal
operation follows by using a region growing algorithm. Then, 88-dimensional
texture features are computed from the GLCMs (Gray-Level Co-Occurrence
Matrices) of mammogram images. Besides, a formerly introduced 108-dimensional
feature ensemble is also computed and cascaded with the 88-dimensional texture
features. Finally, a classification process is realized using Fisher’s Linear
Discriminant Analysis (FLDA) classifier in four different classification cases:
one-stage classification, first fatty – then others, first fatty-glandular –
then others, and first dense-glandular – then others. A maximum of 72.93%
classification accuracy is achieved using only texture features whereas it is
increased to 82.48% when cascade features are utilized. This consequence
clearly exposes that the cascade features are more representative than texture
features. The maximum classification accuracy is attained when “first fatty-glandular
– then others” classification case is implemented, that is consistent with the
fact that fatty-glandular tissue type is easily confused with fatty and
dense-glandular tissue types.
Breast tissue Digital mammography Feature extraction Computer-aided detection
Konular | Mühendislik |
---|---|
Bölüm | Research Article |
Yazarlar | |
Yayımlanma Tarihi | 25 Aralık 2016 |
Yayımlandığı Sayı | Yıl 2016 |